The project of a multi-gable roof of a private house. Multi-gable roof and features of its device. Features of roofing roofing materials

Private houses are decorated with roofs of various shapes. Among them there are tongs. They are a structure that rests on two walls of the same height. Such roofs have two slopes. The end part in its shape resembles a triangle. If the walls are made of wood, then such a triangle is called tongs, and if made of brick - pediments. You can make a gable roof with your own hands.

Gable roofs have two slopes. There are no restrictions on the choice of roofing materials.

When constructing such a roof, as a rule, material waste is minimal. This is due to the fact that the shape of the slopes is rectangular. By the way, slopes can have different lengths and angles of inclination.

Such a roof is characterized by the use of a warm attic, which is used as an additional room. can lead to additional costs for materials and complicate the work.

The optimal angle for the slope is determined within 20-45 degrees and depends on the construction area. If the terrain is snowy, it is better to increase the slope to avoid the formation of snow accumulations.

The device of such a roof begins with laying out the end parts - tongs. This is not the easiest task, because they must be exactly the same.

To calculate the length of the slope, use the Pythagorean theorem, familiar to everyone from school. So, if we imagine that the slope is the hypotenuse of the calculated triangle, then one of the legs will be the height from the beginning of the slope to the ridge along the plane of the wall, and the second will be half the length of the facade wall.

If the house has a simple shape in plan, then you can use the use of a gable roof, but if the shape of the structure is complex, then an option appears using a multi-gable roof. It is more difficult to build them, because they have a lot of valleys.

Gable roof device

When constructing such a roof, two types of rafters are used - layered and hanging..

Slanted are a structure that has a support beam in the middle, which transfers the load from the ridge to the Mauerlat, laid on load-bearing walls. This beam is mounted in the middle of the outer walls.

Hanging rafters are used in cases where the distance between the walls is less than 10 meters or there is no load-bearing wall in the middle of the house.

They are supported on the side walls. However, this creates a rippling effect. It gives additional load to the walls. To avoid this, the design of the hanging rafters provides for connecting the rafters with puffs in such a way that a triangle appears. Floor beams can be used to perform this function.

Puffs can be mounted from above and below. In this case, the upper ones must be installed in such a way that the distance from the ridge is more than 50 centimeters.

materials

For work you will need:

Mauerlat. Wooden bars with a section of 15x10 or 15x15 centimeters are suitable for him;
rafters. For them, pine boards with a section of 15x5 centimeters are chosen.
spacers;
counterlattice. It is laid after a layer of waterproofing. For her, choose bars with a section of 5x5 centimeters or boards 3x10 centimeters;
the lathing is selected under the roofing. It can be made of edged or unedged boards, plywood, OSB boards.

Stages of work

Depending on the design of the house, we choose the right one.
If the rafter system is hanging, then the rafter legs are assembled in advance. And after the assembly is completed, the resulting rafter triangles are mounted on the two extreme structures of the truss system. Next, proceed to the installation of adjacent rafters.
We lay the mauerlat (support beam) on the load-bearing walls, provided that the house is made of blocks or bricks, but if the building is built of beams or logs, then you can use the top bar as a mauerlat.
Mauerlat is attached to brick walls on pre-walled threaded metal rods. They should be installed in steps of a meter and a half. This will make the structure more durable and stable. In this case, the diameter of such rods must be at least 10 mm.
Before installing the Mauerlat, a layer of waterproofing is laid on the brick walls (roofing material can be used for this purpose). It is attached to bolts with washers.
If the walls are made of foam concrete or ceramics, then before installing the Mauerlat, their surface is poured with reinforced concrete 20-30 centimeters high.
Mauerlats are installed parallel to each other to avoid irregularities during the installation of the truss system.
Before installing the rafters, it is necessary to make markings on the Mauerlat using a pencil and a ruler.
Rafters are made in accordance with the length of the slope, which can be determined by the Pythagorean theorem, based on already built tongs.
When calculating the length of the rafters, it is necessary to take into account the presence of an overhang, therefore, another 50 centimeters are added to the calculated value.

The length of the overhang depends on personal preferences for the appearance of the roof, but it is not recommended to make it less than 50 centimeters, otherwise it will not perform its functions - protecting the walls of the house.

The lower end of the rafter should have a hole that will create a perfect attachment to the Mauerlat. This cut should be made 1/3 of the width of the rafter.

In order not to be mistaken with the location of the cutouts, you can prepare a small drawing, where you mark all the necessary values.

With a hanging system of rafters, they are attached to each other on metal plates or bolts.
They are fixed with jibs, dismantled after completion of work.
Next, the filly is fastened, which will form the overhang of the roof.
After the installation of the filly and rafters, they proceed to the installation of the crate and massive durable boards to the ridge.
If we are talking about layered rafters, then the assembly begins with the installation of the bed. Supports are attached to it.
This is followed by the installation of a ridge beam, fixed with jibs.
And at the end, rafters with a length exceeding the length of the beam are mounted on the beam.
The type of lathing is chosen depending on the roofing.
Any roof, including a gable one, should be provided with a layer of hydro- and vapor barrier. And in the presence of a warm attic, there is also a heater.

The multi-gable roof is also gable, and differs from the gable roof in a large number of slopes and the presence of valleys. Their device is a rather complicated and time-consuming process. Valley - these are the junctions of two slopes, when an internal corner is formed. In such places, accumulations of snow form and a large load can lead to the destruction of the structure. When organizing such a roof, it is imperative to provide for the organization of the descent of water and snow in the form of gutters.

When constructing valleys, it is imperative to use waterproofing materials to avoid leaks and the formation of decay on the wood. The lathing in the place of such internal corners is made solid, regardless of what it is for the selected roofing. All joints should be done with high quality, without the possible formation of cracks, so that there are no vulnerabilities.

To install such a roof, it is necessary to correctly calculate all the dimensions of the house and draw a small roof plan, on which you indicate where the skates will be located, and where the valleys will be located. This will help to correctly calculate the length of the rafter legs.

The variety of types of roofs gives architects a lot of room for imagination. Even a simple shed roof can crown the house in such a way that it will look catchy and original. Gable and hip roofs look good, but a multi-gable composite roof is an ideal choice from an aesthetic and practical point of view.

Under such a roof is a comfortable attic, living space with natural daylight. This design is more time consuming and expensive, but the owners deliberately go to the expense. To understand why this happens, it is necessary to understand the features of gable roofs.

In this article

Features of a multi-gable roof

The difference between this design and other types of roofing is the presence of tongs located perpendicular to the main roof slope. A multi-gable roof is used to cover both rectangular buildings and more complex polygonal, broken structures.

One of the features of such solutions is the use of under-roof space for residential purposes with daylight through window openings. The gable is a continuation of the building wall with a triangular top with two slopes at the top. It is not limited from the wall by a cornice and thus differs from the pediment.

The most common variants of this design are the three- and four-gable roofs. These architectural solutions are characterized by high cost and laboriousness during construction, require highly skilled workers and improved thermal and waterproofing.

Advantages

But such roofs also have significant advantages, namely:

When choosing the type of roof, it must be remembered that gable roofing requires increased attention at the level of manufacture of the truss system, since the further installation progress depends on the exact insertion of gable slopes into the main roof slope. There are numerous designs for asymmetrical forceps arrangement. But the most popular options are still multi-gable roofs, which are based on a gable rafter system.

gable roof construction

To understand the design features of any roof, you need to find out what elements it consists of. A complex multi-gable roof is no exception, so consider its main components:

To the listed structural elements, additional components and parts can be added, if necessary, to increase the strength and durability of the structure.

It is important to remember that the places of window openings, exits of chimneys and ventilation pipes must be marked in advance and taken into account in the roof structure accordingly.

A multi-gable roof should be covered with a relatively light roofing material in order to reduce the weight load on the nodes and individual structural elements. For convenient operation of the residential under-roof space, all fasteners must be positioned so that they can be easily covered with decorative finishing materials in the future.

As a rule, the tongs have a lower level of the ridge than that of the main roof, so in the valleys it is necessary to install additional racks and horizontal braces to strengthen the structure, and the ridges rest on the crossbars. If there are horizontal walls on the tong, it is necessary to give them greater rigidity with triangular elements. If the skates on a three- and four-gable roof are at the same level, then the docking is done with a cut or metal corners, and the valleys are attached between the skates at the right angle.

Roof installation procedure

Since the roof structure has complicating elements, an absolutely balanced approach to the installation of the structure is necessary. It is necessary to draw up a drawing with all the necessary dimensions to calculate the required material.

It must be remembered that all wooden elements of the roof structure must be treated with compounds that prevent rotting.

The procedure for assembling the roof must be itemized and strictly followed in strict sequence. . The multi-gable roof is mounted as follows:

all parameters are measured and applied to the wiring diagram, with the exact location of the skates, tongs, valleys and rafters;
a layer of waterproofing material is laid out along the perimeter of the walls;
Mauerlats are laid out and attached along the walls, fixing points to the walls must be prepared in advance and located at a frequency of 1000–1500 mm;
then puffs are laid, which are fastened with power plates to eliminate the bursting effect on the walls of the building, puffs can be transverse and longitudinal;
rafters are laid, in the upper part they are connected to the ridge structure, and in the lower part with a Mauerlat with a gash for 1/3 of the thickness of the rafters;
the rafter group is fixed in a vertical position with temporary bars or a permanent crate;
for the rigidity of the structure, crossbars, headstocks and struts are installed, and structures are also prepared for the installation of tongs;
tongs, rafters, valleys are mounted and the structure is fixed with a crate;
put the finishing crate and remove all temporary fasteners, taking into account the exit of chimneys and ventilation pipes;
then installation of gutters on valleys, cornice strips and a drainage system, as well as windproof strips on roof overhangs;
waterproofing is laid and a counter-lattice is mounted;
the roofing is laid, taking into account the joints of the roof on the valleys, ridges, junctions with pipes;
heat and vapor barrier is mounted, the under-roofing room is finished.

For each particular house, the sequence of operations has its own sequence, and the structural elements may be different. Therefore, when erecting such a complex structure as a multi-gable roof, consultation with specialists is necessary.

Conclusion

We examined the device of the most complex roof, its design and installation sequence. Do-it-yourself arrangement of a multi-gable roof will save a significant amount, but a very balanced design approach is required in order to avoid damage to expensive material. It is very important to follow the technology so that the roof pleases with durability and beautiful appearance.

Among the various types of roofs, the multi-gable construction is considered to be the most beautiful and at the same time difficult to implement. She came to our country from Europe, where people have long had a love for square houses and buildings with a lot of corners. The intricate truss system of a multi-gable roof is erected on structures with a complex layout, and is also an excellent solution for organizing additional lighting in the attic.

Advantages and disadvantages

Those developers who prefer minimalism and practicality are unlikely to appreciate the complex broken lines of such an expensive roof, especially since its main function is similar to more modest one-level samples. Aesthetes and connoisseurs of sophistication, for whom decorative characteristics are as important as functional ones, on the contrary, use every opportunity to arrange such an architectural composition in their home.

The construction of a multi-gable roof is an expensive and time-consuming process.

Even though a simpler roofing system can be just as successful, it would be a mistake to think that a roof with many gables has only one advantage - a beautiful design, this is not entirely true. Apart from the outstanding decorative features, this design has a number of positive aspects, namely:

A long operating period, achieved by the balance of the truss system, thanks to which the roof is able to withstand an impressive load.
The possibility of planning additional space inside the house due to the attic or attic room, where you can equip a gym, billiard room or greenhouse.
Practicality, expressed in the natural removal of precipitation. Due to the presence of inclined surfaces (sometimes their slope reaches 90 degrees), snow and rainwater, as well as fallen leaves, branches and other debris, do not linger on the roof surface and are independently discharged from it.

For construction, it is better to attract a team of professional roofers

If we talk about the shortcomings of the object in question, then they are rather arbitrary, because for wealthy homeowners these disadvantages will not be significant. As you understand, we are talking about the high cost of the project, the high cost of materials and the high wages of the construction team due to the complexity of the work. It was not in vain that we mentioned the need to involve highly professional specialists in the construction of a multi-component roof, because its construction by one's own hands without the appropriate qualifications is difficult and very risky. If you are confident in your abilities and have all the practical skills in this area, you can safely proceed to the implementation of your plans.

The main elements of the external structure

So, all the pros and cons are weighed, there is confidence in your intellectual and physical capabilities, which means that you are ready to perform a complex process with your own hands. The simplest version of the design with many tongs is considered to be the combination into a single whole of a pair of gable structures intersecting at right angles in the form of a cross (in the upper projection).

Now let's move on to the terms denoting individual sections of the roof:

forceps, in the language of professionals - nothing more than the tops of a wall without a cornice (unlike a pediment), which form the basis for two roof slopes;
valley- the place of joining of two planes, forming an internal corner;
edge- an outer corner formed at the junction of two slopes. The horizontal top rib is called a ridge by carpenters.

Pay attention to the fact that special attention is paid to the valleys, because they must cope with the high load caused by the accumulation of precipitation. Even the slightest miscalculations in this area are fraught with leaks and, as a result, premature destruction of the roof.

truss system

The rafter system at the multi-gable roof is assembled from many mandatory elements that are installed in a strictly defined, verified order, and this is its main difficulty.

The basis of the system is:

The slightest violation of construction technology, as a rule, turns into serious troubles, the elimination of which, if possible, inevitably entails a significant waste of time and financial costs. We immediately draw the attention of people who decide to master the construction stages with their own hands to the fact that this complex structure may require a combination of hanging and inclined rafters.

In practice, for the manufacture of rafters, dried and treated with fire retardants and antiseptics, bars of the same section as the Mauerlat (150 x 150 mm or 100 x 150 mm) are used, which, in turn, evenly distributes the load from the roof to the walls of the house. The upper parts of the rafters are connected by a ridge run. It is very important to maintain the optimal moisture content of the wood (maximum 20%).

Stages of the construction process

To install a multi-gable roof with your own hands, you will need a work plan, which is strongly not recommended to deviate from. Now let's go directly to the construction stages:

First of all, you need to measure the size of the house.
Next, the section of the rafters is determined and a scheme (project) for the installation of all roof elements is developed.

Drawing of the truss system of a multi-gable roof

Now you can start laying the Mauerlat, which is fixed on the reinforced belt, and installing the rafter legs. If the installation of a semi-hipped or hip roof is planned, it is necessary to install diagonal rafters reinforced with sprigs.
As fasteners for installing rafter legs on the Mauerlat, metal brackets, plates or corners are used. It is also possible to fix these elements by means of technological cuts.

For the installation of rafters, metal brackets, plates, corners are used.

If the house has a large area, most likely, it will be necessary to install ceiling beams (longitudinal or transverse), which act as puffs.
The upper part of the rafters is attached to the ridge, then the vapor barrier material, the crate and the counter-crate (ventilation system) are laid.

The ventilation system is installed before the roof is installed.

The final stage of work is the installation of roofing material (metal, bituminous, ceramic tiles, etc.).

When mounting such a complex roof with your own hands, do not forget that the attic space will require additional insulation, otherwise it cannot be used as a living space. Mineral fiber (basalt or glass wool) is best suited for such purposes. If you neglect this rule, you may encounter the accumulation of condensate in the under-roof area, which will lead to rotting of the wood from which the roof structure is assembled.

Multi-gable roof: rafter system device

The design of the truss system of a multi-gable roof type. Layout and docking of rafters, fastening, knots, details, schemes for erection by one's own hands.

We study the truss system of a multi-gable roof

Among all the variety of roof structures, a multi-gable roof is the most complex, labor-intensive and economically unprofitable. However, these shortcomings are more than compensated by the unique appearance with many tongs, gables and grooves.

The construction of this structure without fail implies a process of long and careful design, during which a multi-gable roof and its truss system are built, the dimensions of all structural elements are calculated. Let's consider this process in more detail.

Advantages and disadvantages

A multi-gable roof is one of the most controversial roof structures, as its pros and cons balance each other out and the final decision in favor of building such a roof is usually made based on the personal aesthetic preferences of the owner of the house.

Consider the main advantages that a multi-gable roof provides:

Traditionally, such a roof was erected on square houses in such a way as to avoid cornice overhangs. But the use of this roof is possible and even necessary in the case when the shape of the house is complex due to the many rooms attached to it. It can completely transform the appearance of such a far from ideal building;
The truss system of a multi-gable roof is characterized by increased strength and stability, of course, if a competent calculation and installation of the structure is made;
The construction of such a roof allows you to use the room under the roof for a residential attic and, thanks to the possibility of displaying various windows on different sides, provide excellent daylight.

Let's move on to the design flaws:

This type of roof can not boast of efficiency. The device of the truss system is complex and involves a large amount of waste wood and materials from the roofing pie;
Due to the large number of junctions of slopes, such a roof is at risk for leaks.

Design and types

It is based on such an element as a gable - this is a triangular part of the wall, which, unlike the pediment, is not separated by a cornice. That is, a simple form of a multi-gable roof is the connection of two gable roofs at right angles over a square building. When viewed from above, such a structure will have a cruciform appearance.

Depending on the building itself, its shape, dimensions and the desire to create living rooms under the roof, the design can differ significantly from the classical form described above. A set of roofing elements will remain common. Among them, special attention should be paid to two:

Endova, which represents the inner corner between two slopes. The valley must be especially well insulated and strengthened, since it accumulates the largest amount of snow and debris, and the maximum amount of water flows down it during rains.
Roof ribs represent the outer corners of the junction of the slopes, for example, the ridge and the junction of several slopes at the top of the roof.

Calculation of the truss system

The rafter system of a complex multi-gable roof and its scheme should ideally be carried out by professionals, since this implies a rather complicated calculation and installation with many pitfalls. But if you have initial experience in building roofs and you are not planning a roof that is too fanciful, then it is quite possible to make a drawing of such a roof on your own.

It is impossible to give an exact algorithm for calculating a multi-gable roof, since the type of construction itself implies large differences in the rafter system, depending on the appearance of the roof. Here are the main points that are important to pay attention to when designing:

It is necessary to carry out a plan-scheme of the desired roof, displaying the exact dimensions of the building. At this stage, it is necessary to determine such interrelated parameters as the slope of the slopes and the height of the roof. The angle of inclination of the slopes of such a roof is usually steep. Otherwise, it will be problematic to use the under-roof space to create a living room;
The rafter system should be built on the basis of a number of data, including the snow load of the region and the weight of the roofing. Multi-gable designs produce a large amount of waste, so we recommend that you look at soft tiles;
The type of truss system depends on the presence of support inside the building. It is important to carefully calculate the location and load on all supporting elements, such as tightening, stops, runs, etc., so as not to miscalculate with their dimensions;
Depending on the configuration of the roof, different types of rafters will be used: regular or diagonal (for hip structures).

General view of the truss system and roofing pie

The rafters and roofing cake of a multi-gable roof, in principle, repeat the main points of these structures for other types of roofs. Therefore, we dwell on important points that must be taken into account even at the stage of planning the roof:

Mauerlat is subject to heavy loads and it is advisable for him to choose a bar with a section of 150 * 150 mm. It is more convenient to mount it on anchors laid in the walls during their construction;
Rafters can be attached to the Mauerlat in three main ways: washed down, staples or corners. In the upper part, the connection of the rafters is made with a ridge beam;
The reinforcing elements for the rafters in different solutions of multi-gable roofs will be different elements. In the case of a base in the form of a hip roof, diagonal rafters will be mounted, which must be made double and strengthened with sprigs. Strengthening roof trusses is possible with struts or crossbars. In a large building, it is convenient to use ceiling beams for tightening truss trusses;
The installation of the valley requires special attention. In these places, a continuous crate is made and two layers of waterproofing are laid. A valley plank is mounted on the waterproofing layer. If the element requires docking, then the installation is done from the bottom up so that the upper bar overlaps the lower one and water cannot flow under it;
The device of the lathing and insulation of this roof in general terms repeats these steps for any other roof.

Summing up

A multi-gable roof is a technically complex structure, for the competent construction of which accurate calculation and knowledge of the installation nuances are especially important.

Such roofs look great both on square or rectangular buildings, allowing them to acquire a more interesting appearance, and on houses of complex shape, when it is the only possible option for arranging the roof.

It is important to remember that any complication of the roof structure does not have the best effect on the cost and strength of the roof. Any element of the roof should, first of all, be of practical use, and not be erected for the sake of taste.

Multi-gable roof: truss system - diagrams and drawings

The advantages and disadvantages of a multi-gable roof are considered, the main points are given in the calculation and construction of the truss system of this design.

We make a gable roof with our own hands

gable roof calculation

Gable roofs have two slopes. There are no restrictions on the choice of roofing materials.

Such a roof is characterized by the use of a warm attic, which is used as an additional room. Roof insulation can lead to additional costs for materials and complicate the work.

Shield roof: the beginning of construction

The device of such a roof begins with laying out the end parts - tongs. This is not the easiest task, because they must be exactly the same.

Gable roof device

When constructing such a roof, two types of rafters are used - layered and hanging.

Hanging rafters are used in cases where the distance between the walls is less than 10 meters or there is no load-bearing wall in the middle of the house.

Puffs can be mounted from above and below. In this case, the upper ones must be installed in such a way that the distance from the ridge is more than 50 centimeters.

Types of roof truss systems

Mauerlat. Wooden bars with a section of 15x10 or 15x15 centimeters are suitable for him;
rafters. For them, pine boards with a section of 15x5 centimeters are chosen.
spacers;
counterlattice. It is laid after a layer of waterproofing. For her, choose bars with a section of 5x5 centimeters or boards 3x10 centimeters;
the lathing is selected under the roofing. It can be made of edged or unedged boards, plywood, OSB boards.

Stages of work

Depending on the design of the house, we choose the appropriate system of rafters.
If the rafter system is hanging, then the rafter legs are assembled in advance. And after the assembly is completed, the resulting rafter triangles are mounted on the two extreme structures of the truss system. Next, proceed to the installation of adjacent rafters.
We lay the mauerlat (support beam) on the load-bearing walls, provided that the house is made of blocks or bricks, but if the building is built of beams or logs, then you can use the top bar as a mauerlat.
Mauerlat is attached to brick walls on pre-walled threaded metal rods. They should be installed in increments of a meter and a half. This will make the structure more durable and stable. In this case, the diameter of such rods must be at least 10 mm.
Before installing the Mauerlat, a layer of waterproofing is laid on the brick walls (roofing material can be used for this purpose). It is attached to bolts with washers.
If the walls are made of foam concrete or ceramics, then before installing the Mauerlat, their surface is poured with reinforced concrete 20-30 centimeters high.
Mauerlats are installed parallel to each other to avoid irregularities during the installation of the truss system.
Before installing the rafters, it is necessary to make markings on the Mauerlat using a pencil and a ruler.
Rafters are made in accordance with the length of the slope, which can be determined by the Pythagorean theorem, based on already built tongs.
When calculating the length of the rafters, it is necessary to take into account the presence of an overhang, therefore, another 50 centimeters are added to the calculated value.

The length of the overhang depends on personal preferences for the appearance of the roof, but it is not recommended to make it less than 50 centimeters, otherwise it will not fulfill its functions - protecting the walls of the house.

Supporting the diagonal rafter leg on the Mauerlat

The lower end of the rafter should have a hole that will create a perfect attachment to the Mauerlat. This cut should be made 1/3 of the width of the rafter.

In order not to be mistaken with the location of the cutouts, you can prepare a small drawing, where you mark all the necessary values.

With a hanging system of rafters, they are attached to each other on metal plates or bolts.
They are fixed with jibs, dismantled after completion of work.
Next, the filly is fastened, which will form the overhang of the roof.
After the installation of the filly and rafters, they proceed to the installation of the crate and massive durable boards to the ridge.
If we are talking about layered rafters, then the assembly begins with the installation of the bed. Supports are attached to it.
This is followed by the installation of a ridge beam, fixed with jibs.
And at the end, rafters with a length exceeding the length of the beam are mounted on the beam.
The type of lathing is chosen depending on the roofing.
Any roof, including a gable one, should be provided with a layer of hydro- and vapor barrier. And in the presence of a warm attic, there is also a heater.

Multi-gable roof

The multi-gable roof is also gable, and differs from the gable roof in a large number of slopes and the presence of valleys. Their device is a rather complicated and time-consuming process. Valleys are the junctions of two slopes when an internal corner is formed. In such places, accumulations of snow form and a large load can lead to the destruction of the structure. When organizing such a roof, it is imperative to provide for the organization of the descent of water and snow in the form of gutters.

Multi-gable roof truss system

Do-it-yourself gable roof: construction, truss system, etc.

Do-it-yourself gable roof: calculation, choice of materials, detailed instructions.

Multi-gable roof

Classic variants of truss systems with two or four slopes are gradually giving way to more modern technical solutions. To please the consumer, designers, together with construction companies, are creating roofs that are more and more bizarre in shape. One of the most striking examples is the multi-gable roof truss system. In its configuration, it stands out from the standard design solutions.

Appearance

The roof of the classical form has several gentle slopes. In the multi-gable version, an additional element is embedded in one of the slopes. It's called a tong.

Rectangular timber frame

A tong is an insert consisting of two slopes that connects the truss structure with the frame of the house. A multi-gabled roof may have more than two gables.

Top view of various roof options

Important! The frame for a multi-gable roof has a more complex structure than that of a gable roof. It will take much more time to manufacture and assemble it. Labor costs and the amount of required building material will increase.

Positive and negative properties

A multi-gable roof is a complex truss system. It has a number of properties that make it in demand in the construction market:

Positive

Strength. The frame is assembled from strong, well-prepared elements. Each of them has a high margin of safety.
load bearing capacity of the entire frame. Thanks to the thoughtful and reliable geometric shape of the multi-gable roof, it can withstand significant wind and snow loads. A roof with this shape is suitable for installation in climatic regions with unpredictable and aggressive weather.
Ease of maintenance. A multi-gable roof has a large angle of inclination of the slopes. Thanks to this, debris does not accumulate on the surface. Therefore, there is no need for systematic cleaning.
Ergonomics. Each gable is an additional living space. This allows you to better use the free space of a private house.
Interesting appearance. A complex roof will decorate any house, giving it uniqueness and recognizability against the background of other buildings.

Negative

High cost of materials and labor. For the construction of a multi-gable truss structure, much more building and finishing materials will be needed than for the installation of classic options.
High chance of leaks. There are many junctions and joints in the outer surface of the roof. Each of them is a weak point where leaks can form.
High difficulty for do-it-yourself work. There are many elements in the design of the roof. It is easy for an inexperienced builder to get confused in them.

Important! Minor disadvantages are easily leveled by significant advantages of this truss system.

Components of the frame

To assemble a multi-gable roof, several basic elements are used:

Roof device

Mauerlat is one of the main elements of the frame. This is the load-bearing beam on which the rafter "legs" rest. It evenly dissipates the load from the roof along load-bearing walls or columnar supports. In low-rise construction, the mauerlat is made from a wooden beam of rectangular or square section. Mauerlat is constantly subjected to significant loads. Therefore, a bar with a section of at least 150 × 150 mm is used. It is mounted on pre-prepared anchor bolts.
Rafters - load-bearing elements installed at an angle to each other. Each rafter consists of two prefabricated parts. They are installed along the ridge. Rafter "legs" take the load from the roofing carpet and precipitation. They are attached to the Mauerlat with gashes, corners or staples. The upper part of the rafters is connected into one node with a ridge run.
Racks are load-bearing elements installed vertically. Usually rafter "legs" or ridge runs rely on them.
Struts - props for rafters installed at an angle.
Endova - the junction of two adjacent slopes. It serves to drain rainwater. Snow and water can accumulate in the valley. Therefore, the frame near it is reinforced with additional supports or double rafter "legs". In places where the valley passes, a continuous crate is installed. The roofing carpet is reinforced with an additional layer of waterproofing. Then a special bar is mounted on top, along which rainwater flows.

Valley load

An edge or ridge is a knot connecting the upper part of two adjacent slopes.
Sheathing - structural elements that are fixed perpendicular to the rafter "legs". A roofing carpet is laid on it.

Frame calculation

To ensure the necessary strength and rigidity of the roof, it is necessary to make a complete calculation of all elements. Due to the complexity of the design, it is not recommended to carry it out on your own, it is better to contact a specialized design organization, where they will provide all the necessary documentation and a finished drawing.

The multi-gabled roof, complex in shape, looks harmoniously on cottages of any configuration and size. It allows you to get a unique residential building that will attract the admiring glances of neighbors and passers-by.

Multi-gable roof truss system drawing, video

Roofs are, as you know, flat and pitched. Pitched - architecturally more expressive and, in addition to the protective function, they also have a decorative function. The number, shape and size of the slopes depend entirely on the personal preferences of the owner and the designer's intent, taking into account, of course, climatic conditions and operating requirements.

Design features: pros and cons

Multi-gable roof - the design is quite complicated. It is distinguished by the presence of numerous intersections of slopes, at which valleys are formed, the so-called formed internal corners. The valley is considered the most unreliable element. Indeed, the maximum amount of water flows through them, despite the fact that their slope is significantly less than that of the slopes. Snow accumulates there, increasing the load on the roof. Therefore, the valley can be considered the “weak” point of such structures. So, this roof is not only complicated in its structure, but it is also not easy to follow it.

At the junctions of the roof slopes, ribs are also formed, but, unlike the valleys, they form an external corner.

A vivid illustration of them is, for example, the place where two slopes in a quadrangular roof are connected.

The shape of the structure during the construction of this type is either polygonal, the scheme of which is presented below, or square. It can be installed in houses with a complex layout or in attics, for which it is necessary to provide special additional side lighting. For extensions of such buildings, different heights are characteristic.

However, neither this nor the significant cost, because the complexity of the geometric shape of the structure leads to an increased consumption of material, does not become an obstacle for those who seek to complete their building with an interesting and original accent.

A multi-gable roof, the drawing of which for many may seem no less complicated, nevertheless, can be erected independently, but subject to strict adherence to the requirements of construction technology

Multi-gable can combine under a single roof structure a number of roofs that differ in their type and purpose. The complexity of its device lies in the large number of ribs, valleys, grooves. Its spire is more of an artistic character, and it is often used to install towers and domed roofs, emphasizing the architectural style. One of the most popular today are two-level coatings and half-hip roofs.

Rafter device

The basis of the roof structure is the truss system. Most often, it combines diagonal and hanging rafters directed to the corners of the walls. The complexity of such structures lies in the fact that all slopes do not rely on Mauerlats, as usual, but on diagonal legs. That is, the bearing capacity of the structure depends not only on the calculation of the sections of the system elements, but also on the implementation of the connection nodes and the installation of stiffeners.

The main node is considered to be the joint at one point of the ridges of the same level of different sections of the roof. The ridge beams are connected at a right angle, but, in addition, each of these angles also includes slanting legs, which are the main support for almost all rafters. The strength of this node is increased by installing puffs.

Slanted rafters are longer than conventional ones, so they are made paired. This technology simultaneously solves several problems:

a rafter with a double section is able to withstand an increased load;
rallying the boards makes it possible to obtain a continuous beam of greater length;
when connecting, the standard size of the parts used is unified.

It turns out that it is practically possible to use the same boards for diagonal devices as for ordinary ones - and the use of boards of equal height for any type of rafters simplifies the constructive solution of roof nodes. In addition, semi-legs or joists are supported on them, thanks to which the layered supports are able to carry a load that is about one and a half times more than the maximum load for ordinary rafters.

The leaning of the sprigs on the diagonal leg is performed in two ways:

top surface support. A cut is made in the rafters in such a way that half of their section - the upper one - is above the diagonal leg, and the lower one rests on the side surface.
Support on the side. The main thing in this case is how well the supporting parts fit. The lower rafter can be more firmly connected to the diagonal leg beam by nailing an additional support boss from the trim.

The bottom of the sloping supports, usually for landing on a truss, a beam of timber, thrown along intersecting external walls at an angle, a surf or run console, is cut into the horizon and fastened with nails.

But the diagonal supports located in the valley cannot be supported with a trussed truss.

A truss truss is a truss structure with two struts installed.

The fact is that the valley forms the inner corner of the walls, so they must be supported with racks or, in extreme cases, with struts.

By the way, the installation of roofing in the case of a multi-gable roof begins with the installation of valleys, which are formed at the intersection of mutually perpendicular planes. At the same time, the technology for the execution of this unit depends entirely on the material used as the main one for the roof.

1 Features
4 Installation of the valley
6 Videos
7 photos
8 Schemes

initially;

Peculiarities

Scheme of the truss system

Designations of the main structural elements

Roof device

Ribs

forceps

Mauerlat

rafters

crate

Installation of the truss frame

Roof truss system

Sheathing, insulation and roof installation

Video

Multi-gable roof

Beautiful multi-gable roof

From metal tiles

For a country house

Simple design

Complex design

Scheme

Multi-gable roof drawing

Wireframe creation

Roof structure

The main nodes of the structure

Multi-gable roof and its features

Multi-gable roof- this is a type of pitched roof, the design of which consists of several or many tongs (gable elements with skates), along the edges of the overhangs forming gables in the structure.

Multi-gable roofs are a complex structure, the distinguishing feature of which is the presence of gable elements intersecting or cutting into the main slope, forming numerical valleys on the roof.

Design features

Among roofs with straight planes of slopes, multi-gable roofs are complex types of roofs with numerous crossed slopes and internal angles between their joints. It is being built on buildings that are distinguished by a complex layout of various geometric shapes, multi-level attics and attic spaces.

A multi-gable roof is considered a complex structure. The complexity of the design is explained by the presence in such roofs of a large number of valleys and gables, the installation of which causes specific difficulties and additional costs.

The arrangement of the valley requires especially close attention, because it is through them that streams of rain and melt water will flow in the future. Also in these places there is the greatest accumulation of snow, and therefore they must have a significant bearing capacity and tightness. The professional formation of the valley, the main vulnerable element of the roofing, ensures reliable removal of melt and rain water from the roof.

Structural elements

In multi-gable roofs, the following structural elements are always and necessarily present:

gables and gable overhangs;
valleys formed when pairing forceps;
roof ridge.

Scheme of the truss system of a simple multi-gable roof:

Varieties of multi-gable roofs

The shape of a multi-gable roof can be very diverse and limited only by the imagination of the developer or designer. The number of tongs (gable elements with a ridge) in the roof can be from two to an unlimited number. Roof slopes can be in the form of triangles and trapezoids.

As a coating for multi-gable roofs, any roofing materials can be used, but provided that the roof frame (rafter system) is properly designed, capable of withstanding all the loads on the roof during its operation.

Advantages and disadvantages of multi-gable roofs

The multi-gable roof structure has certain advantageous characteristics. These include:

original, unique, elegant roof shapes;
ideal combination with buildings of any architectural form;
balanced truss system;
the possibility of arranging a spacious attic and a significant increase in its usable area;
no risk of stagnant rain and melt water due to the large slope of the roof surface and the presence of grooves;
reliability, strength, durability of the structure;
compliance of the cost of a multi-gable roof with operational and aesthetic characteristics.

The list of shortcomings of this type of roof includes: the level of complexity of installation, the presence of a large number of valleys that complicate the process of arranging, maintaining and maintaining the roof, as well as a high consumption of building materials. The installation of a multi-gable roof is a labor-intensive construction work, for which it is necessary to seek the help of professional specialists. Roof installation takes longer.

%D0%9D%D0%B5%D1%81%D0%BC%D0%BE%D1%82%D1%80%D1%8F%20%D0%BD%D0%B0%20%D1%81%D0 %B5%D1%80%D1%8C%D1%91%D0%B7%D0%BD%D1%8B%D0%B5%20%D0%BD%D0%B5%D0%B4%D0%BE%D1 %81%D1%82%D0%B0%D1%82%D0%BA%D0%B8%20%D1%81%D0%BB%D0%BE%D0%B6%D0%BD%D0%BE%D0 %B9%20%D0%B0%D1%80%D1%85%D0%B8%D1%82%D0%B5%D0%BA%D1%82%D1%83%D1%80%D0%BD%D0 %BE%D0%B9%20%D1%84%D0%BE%D1%80%D0%BC%D1%8B,%20%D1%8D%D1%81%D1%82%D0%B5%D1% 82%D0%B8%D1%87%D0%BD%D1%8B%D0%B9,%20%D0%BE%D1%80%D0%B8%D0%B3%D0%B8%D0%BD%D0 %B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9,%20%D0%BF%D1%80%D0%B5%D0%B7%D0%B5%D0%BD% D1%82%D0%B0%D0%B1%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9%20%D0%B2%D0%B8%D0%B4% 20%D0%B8%20%D1%8D%D0%BA%D1%81%D0%BF%D0%BB%D1%83%D0%B0%D1%82%D0%B0%D1%86%D0% B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B5%20%D1%85%D0%B0%D1%80%D0%B0%D0%BA%D1%82%D0% B5%D1%80%D0%B8%D1%81%D1%82%D0%B8%D0%BA%D0%B8%20%D0%BC%D0%BD%D0%BE%D0%B3%D0% BE%D1%89%D0%B8%D0%BF%D1%86%D0%BE%D0%B2%D0%BE%D0%B9%20%D0%BA%D1%80%D1%8B%D1% 88%D0%B8%20%D0%BF%D0%BE%20%D0%BF%D1%80%D0%B0%D0%B2%D1%83%20%D0%B7%D0%B0%D1% 81%D0%BB%D1%83%D0%B6%D0%B8% D0%B2%D0%B0%D1%8E%D1%82%20%D0%BF%D0%BE%D1%85%D0%B2%D0%B0%D0%BB%D1%83%20%D0% B8%20%D0%B2%D0%BD%D0%B8%D0%BC%D0%B0%D0%BD%D0%B8%D0%B5%20%D0%B2%D0%BB%D0%B0% D0%B4%D0%B5%D0%BB%D1%8C%D1%86%D0%B5%D0%B2%20%D1%87%D0%B0%D1%81%D1%82%D0%BD% D0%BE%D0%B9%20%D1%81%D0%BE%D0%B1%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE% D1%81%D1%82%D0%B8.

%D0%9A%D0%BE%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F%20%D0%B8 %20%D0%BC%D0%BE%D0%BD%D1%82%D0%B0%D0%B6%20%D1%81%D1%82%D1%80%D0%BE%D0%BF%D0 %B8%D0%BB%D1%8C%D0%BD%D0%BE%D0%B9%20%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D1 %8B%20%D0%BC%D0%BD%D0%BE%D0%B3%D0%BE%D1%89%D0%B8%D0%BF%D1%86%D0%BE%D0%B2%D0 %BE%D0%B9%20%D0%BA%D1%80%D1%8B%D1%88%D0%B8

%0A

%D0%9F%D1%80%D0%B8%20%D0%B2%D0%BE%D0%B7%D0%B2%D0%B5%D0%B4%D0%B5%D0%BD%D0%B8 %D0%B8%20%D0%BA%D1%80%D1%8B%D1%88%D0%B8%20%D0%BE%D1%87%D0%B5%D0%BD%D1%8C%20 %D0%B2%D0%B0%D0%B6%D0%BD%D0%BE%20%D0%B2%D0%BD%D0%B8%D0%BC%D0%B0%D1%82%D0%B5 %D0%BB%D1%8C%D0%BD%D0%BE%20%D0%BF%D0%BE%D0%B4%D0%BE%D0%B9%D1%82%D0%B8%20%D0 %BA%20%D1%82%D0%B0%D0%BA%D0%BE%D0%BC%D1%83%20%D0%B2%D0%BE%D0%BF%D1%80%D0%BE %D1%81%D1%83,%20%D0%BA%D0%B0%D0%BA%20%D0%BC%D0%BE%D0%BD%D1%82%D0%B0%D0%B6% 20%D1%81%D1%82%D1%80%D0%BE%D0%BF%D0%B8%D0%BB%D1%8C%D0%BD%D0%BE%D0%B9%20%D1% 81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D1%8B.%20%D0%AD%D1%82%D0%B0%20%D0%BA%D0%BE %D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F%20%D0%B1%D1%83%D0%B4 %D0%B5%D1%82%20%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%BE%D0%B2%D1%8B%D0%B2%D0%B0 %D1%82%D1%8C%20%D0%BA%D0%B0%D1%80%D0%BA%D0%B0%D1%81%20%D0%B2%D1%81%D0%B5%D0 %B9%20%D0%BA%D1%80%D0%BE%D0%B2%D0%BB%D0%B8.%20%D0%9F%D1%80%D0%B8%20%D0%B5% D0%B5%20%D1%81%D0%BE%D0%B7%D0%B4%D0%B0%D0%BD%D0%B8%D0%B8%20%D1%81%D0%BB%D0% B5%D0%B4%D1%83%D0%B5%D1%82% 20%D0%B2%D1%81%D0%B5%20%D0%B2%D0%BD%D0%B8%D0%BC%D0%B0%D1%82%D0%B5%D0%BB%D1% 8C%D0%BD%D0%BE%20%D1%80%D0%B0%D1%81%D1%81%D1%87%D0%B8%D1%82%D0%B0%D1%82%D1% 8C%20%D0%B8%20%D0%BF%D1%80%D0%BE%D0%B2%D0%B5%D1%81%D1%82%D0%B8%20%D0%B2%D1% 81%D0%B5%20%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D1%8B%20%D0%BA%D0%B0%D1%87%D0%B5% D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE.%20%D0%A1%D0%B0%D0%BC%D1%8B%D0%B9 %20%D0%BF%D1%80%D0%BE%D1%81%D1%82%D0%BE%D0%B9%20%D0%B2%D0%B0%D1%80%D0%B8%D0 %B0%D0%BD%D1%82%20%E2%80%93%20%D1%8D%D1%82%D0%BE%20%D1%81%D1%82%D1%80%D0%BE %D0%BF%D0%B8%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F%20%D1%81%D0%B8%D1%81%D1%82%D0%B5 %D0%BC%D0%B0%20%D0%BE%D0%B4%D0%BD%D0%BE%D1%81%D0%BA%D0%B0%D1%82%D0%BD%D0%BE %D0%B9%20%D0%BA%D1%80%D1%8B%D1%88%D0%B8.%20%D0%92%D1%8B%D0%BF%D0%BE%D0%BB% D0%BD%D0%B8%D1%82%D1%8C%20%D0%B5%D0%B5%20%D1%81%D0%BC%D0%BE%D0%B6%D0%B5%D1% 82%20%D0%BF%D1%80%D0%B0%D0%BA%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%20% D0%BB%D1%8E%D0%B1%D0%BE%D0%B9.%20%D0%9D%D0%BE%20%D1%82%D0%B0%D0%BA%D0%BE%D0 %B9%20%D0%B2%D0%B0%D1%80%D 0%B8%D0%B0%D0%BD%D1%82%20%D1%83%D1%81%D1%82%D1%80%D0%B0%D0%B8%D0%B2%D0%B0% D0%B5%D1%82%20%D0%B4%D0%B0%D0%BB%D0%B5%D0%BA%D0%BE%20%D0%BD%D0%B5%20%D0%B2% D1%81%D0%B5%D1%85.%20%D0%9F%D0%BE%D1%8D%D1%82%D0%BE%D0%BC%D1%83%20%D0%BC%D0 %BD%D0%BE%D0%B3%D0%B8%D0%B5%20%D0%B2%D1%8B%D0%B1%D0%B8%D1%80%D0%B0%D1%8E%D1 %82%20%D0%B1%D0%BE%D0%BB%D0%B5%D0%B5%20%D1%81%D0%BB%D0%BE%D0%B6%D0%BD%D1%8B %D0%B5%20%D0%BA%D0%BE%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D0%B8 ,%20%D0%BE%D0%B4%D0%BD%D0%BE%D0%B9%20%D0%B8%D0%B7%20%D0%BA%D0%BE%D1%82%D0% BE%D1%80%D1%8B%D1%85%20%D0%B8%20%D1%8F%D0%B2%D0%BB%D1%8F%D0%B5%D1%82%D1%81% D1%8F%20%D0%BC%D0%BD%D0%BE%D0%B3%D0%BE%D1%89%D0%B8%D0%BF%D1%86%D0%BE%D0%B2% D0%B0%D1%8F%20%D0%BA%D1%80%D1%8B%D1%88%D0%B0. %20%D0%90%20%D0%BA%D0%B0%D0%BA%D0%B0%D1%8F%20%D1%81%D1%82%D1%80%D0%BE%D0%BF %D0%B8%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F%20%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC %D0%B0%20%D0%B8%D1%81%D0%BF%D0%BE%D0%BB%D1%8C%D0%B7%D1%83%D0%B5%D1%82%D1%81 %D1%8F%20%D0%B2%20%D1%8D%D1%82%D0%BE%D0%BC%20%D1%81%D0%BB%D1%83%D1%87%D0%B0 %D0%B5?%20%D0%9A%D0%B0%D0%BA%20%D0%B5%D0%B5%20%D0%BF%D1%80%D0%B0%D0%B2%D0% B8%D0%BB%D1%8C%D0%BD%D0%BE%20%D1%80%D0%B0%D1%81%D1%81%D1%87%D0%B8%D1%82%D0% B0%D1%82%D1%8C%20%D0%B8%20%D1%81%D0%BC%D0%BE%D0%BD%D1%82%D0%B8%D1%80%D0%BE% D0%B2%D0%B0%D1%82%D1%8C?%20%D0%9E%D0%B1%20%D1%8D%D1%82%D0%BE%D0%BC%20%D0%B8 %20%D0%B1%D1%83%D0%B4%D0%B5%D1%82%20%D1%80%D0%B0%D1%81%D1%81%D0%BA%D0%B0%D0 %B7%D0%B0%D0%BD%D0%BE%20%D0%B2%20%D1%81%D1%82%D0%B0%D1%82%D1%8C%D0%B5.

General concepts

The truss system of a multi-gable roof is a rather complex structure. To perform its calculation and installation, you need to have some experience. But before talking about it, you should get acquainted with the very concept of a multi-tweezer design. What is this roof option? Why is she called that?

This design is a multi-pitched roof. Its most important difference is the presence of tongs or gable elements with a ridge. It is from them that the whole structure took its name. Each of the tongs rests on one side of the truss system of the main roof. The other end forms a pediment.

The device of the truss system of a multi-gable roof has its advantages, namely:

This design has high bearing capacity and strength.
The truss system of a multi-gable roof is calculated based on increased loads. This feature allows the structure to easily withstand even hurricane winds and large layers of snow.
The slopes of such roofs are made quite steep. This prevents debris from accumulating on them. This means that maintenance of the roof is greatly facilitated. In addition, such a roof, if properly erected, does not require repair for a long time.
Thanks to the highly located ridge, a lot of free space is formed under the multi-gable roof. This allows you to freely create additional living rooms on the attic floor.
Another advantage is that such a design can be used even if the house has a complex geometry.

But do not forget about the difficulties. The rafter system of a multi-gable roof is a complex structure. If you do not have sufficient experience in construction and carpentry work, then it is better to entrust its construction to specialists.

Basic structural elements

As mentioned earlier, the truss system of a multi-gable roof is several gable structures connected together. Therefore, the basic principles will also be similar. In our case, both hanging and layered rafter systems can be used. As a rule, the main structure has a large width. Therefore, a layered truss system is used here. Hanging structures are used in extensions, everything will depend on the width of the building and the presence of an axial load-bearing wall.

In addition, the multi-gable roof truss system incorporates the following main elements:

slopes. Their number in a multi-gable roof can differ significantly from the traditional design. At the same time, the sizes, shape and steepness of unpaired slopes can also vary;
skate. There will also be several of these elements;
ribs - these elements are located at the junction of the slopes. Moreover, they can only be in those multi-gable roofs where hips are used;
valley. Not one multi-gable roof can do without this element. This element is located at the inner corners where two slopes converge. Endova needs to pay special attention. This is where snow can accumulate in winter. Therefore, in such places a large load is experienced and leaks most often occur, it is useful to read: a valley on a metal tile.

Of course, other elements may be present. For example, pediments. They close the ends of the tongs themselves. At the same time, the pediments can also finish the main roof, if it is not cable-stayed, it is useful to read: the pediment is made of corrugated board.

Making calculations

The rafter system of a multi-gable roof is a complex structure. Therefore, it is impossible to do without preliminary drawing up its scheme. But first of all, you should make all the basic calculations. Before drawing up a plan for the future rafter system of a multi-gable roof, the following basic parameters should be clarified:

Skate height. To do this, use indicators such as the width of the house or extension (depending on which building is being calculated) and the angle of inclination of the slope. Very often, reverse calculations are carried out. Initially, the desired height of the house is determined, and then the slope angle of the slope is calculated. It should be noted that the width of the main house and the extension will be different. And this means that the angle of inclination of the rafter system of a multi-gable roof for each building will be different. This is the difficulty of such a device.
Next, you should find out the length of the main rafters. This parameter is easy to calculate from the Pythagorean formula. In this case, the length of the rafters for the main building and the extension will be different.
You should also calculate the length of the valley. This is where the rafters will be located. The Pythagorean theorem will also be used here. The valley will be the hypotenuse. The triangle itself consists of the length of the rafters of the main building and half the width of the extension.
Between the ridge and the rafters are sprigs. Their length should also be found using the Pythagorean theorem. The rafters will be shortened rafters.

The total area of the roof is also calculated. It will be the sum of the areas of all the slopes of the multi-gable roof. This value is necessary to calculate how much roofing material you need during installation, read the additional material: calculation of the truss system.

Load

The rafters of a multi-gable roof, like the entire system, must withstand all external influences. Therefore, even before the calculation of all the main parameters, the load should be calculated. Experts distinguish between two types of it, namely:

permanent. This group includes the load on the truss system of multi-gable and other types of roofs, caused by the weight of the materials used. It also includes the mass of all equipment installed on the roof;
variable load. This group includes influences from external factors. The rafter system is affected by the weight of the snow cover, which will linger on the roof. In addition, the wind also has an effect.

Knowing what angle of inclination of the slopes will be on your roof, you can calculate the variable loads. By adding to them the mass of all the materials used in the construction of the roof, you can determine the total impact that the entire structure must withstand, it is recommended to read: calculation of the gable roof truss system.

Knowing all the loads, you can determine the cross section of the rafters. The greater the load, the thicker the main elements of the system should be. In addition, after such calculations, the distance between the rafters or step is also determined. Also, if necessary (for example, if the rafter legs are too long), specify the location of additional supporting elements. After all this, a drawing is drawn up.

To perform all these calculations correctly, especially to draw up a diagram of the future truss system of a multi-gable roof, is a difficult task. It is better to entrust it to specialists. Or you can use special programs. With their help, by specifying all the necessary data, you can not only calculate all the parameters, but also draw up a plan for the location of all components of the multi-gable roof truss system.

The installation of a multi-gable roof truss system is not much different from a traditional gable roof system. All work is carried out in the following sequence:

The first step is the installation of the Mauerlat. In the case of a multi-gable roof, this work must be done not only on all external load-bearing walls, but also on internal ones. The latter would be more correct to be called lying down.
Next, you should install the ridge run. Most often, a multi-gable roof over the main building is installed in a layered way. Therefore, you cannot do without a ridge run. Above the extension, a hanging truss system is most often used. In this case, the ridge run is not used. https:="">

Particular attention should be paid to the section of the multi-gable roof, where the valley will be located. The rafter system itself in this place must be reinforced with props. In addition, it is necessary to make a thorough waterproofing and lay the roofing material with high quality. All this is necessary because it is this area that is subjected to the greatest loads, especially in winter.

Do-it-yourself multi-gable roof
- 1 Features
- 4 Installation of the valley
- 6 Videos
- 7 photos
- 8 Schemes
Among the various roof structures, the most complex and attractive is considered to be multi-gable. The peculiarity of its design lies in the large number of complex elements. These include gables, tongs, valleys and ribs. In this article, we will tell you how to build a multi-gable roof with your hands, show drawings and diagrams, photo and video materials.

Most often, a multi-gable roof is made in several cases:
- initially;
- in the process of building extensions;
- for mounting side lighting in the attic;
- in buildings with a complex layout and many rooms.
Peculiarities

Scheme of the truss system

A simple gable roof option is a gable roof without gables. In this design, the upper triangular section of the wall is called a gable. There are no simple steps in the process of building a multi-gable roof; all actions, starting with calculations, require knowledge and skills. The device of the roof allows you to place a living space under it. Despite the difficulties, homeowners undertake self-assembly, which saves a significant amount of money. A multi-gable roof will require enormous physical and financial costs, but will delight the creators with the architectural beauty of the building.
- thanks to a balanced rafter system, the roof can easily withstand high loads;
- the roof has an original and attractive appearance;
- the design is reliable and durable;
- there is free space for an additional room or attic;
- snow cover does not linger on steep slopes.
- complex design that requires competent calculations and installation;
- a large amount of waste generated when cutting roofing material, especially metal tiles;
- high load on the valley due to snow;
- the need for high-quality waterproofing of internal joints.
Designations of the main structural elements

Roof device

The valley is the place of the internal connection of the slopes, they are one of the key nodes. They have to withstand a significant load from the accumulation of snow, so support from the system of props and struts is performed from below. The waterproofing of the node is of great importance, all the water flowing down the roof passes through the valleys. Any design error will result in a leak.

Ribs- represent the outer corner of the connected slopes. One of the most difficult places in the construction of a multi-gable roof is the intersection of the ridge beam, to which the valley adjoins. The ridge is one of the ribs of the roof.

forceps- a section of the wall bounded by slopes, it turns out in the form of a triangle and is not separated from the wall by a cornice.

Mauerlat- the bearing base of the entire roof, distributing the load on the walls and foundation.

rafters- layered, hanging and diagonal.

crate- a frame made of timber, necessary for fixing roofing material and insulation.

Installation of the truss frame

Roof truss system

The basis of the multi-gable roof is the Mauerlat. The base element is subjected to a high load, so a bar with a section of 150 × 150 mm is used for it. It is attached to the walls of the building with anchors laid in the process of building the house. The rafters rest on the Mauerlat. Rafters can be layered and hanging. Their choice is determined by design features.

In the case of a hip and semi-hip roof, diagonal rafter legs are installed at the junction of the slopes. These elements account for the main load, so they require reinforcement by sparrows. Such rafters can be made double, connected from two boards 150 × 50 mm. Rafter legs, reinforced with struts and crossbars, form trusses. To ensure an attractive appearance of a multi-gable roof and the necessary rigidity of the structure, all parts of the trusses are made in a template. Novice builders can assemble trusses not with the help of a cut, but by fastening them with overhead metal elements.

After installing the rafters, a crate is stuffed on them, at the junctions of the slopes, where the valleys are arranged, it is solid. The inner corner waterproofing scheme provides for the laying of an additional layer to ensure the reliability of the structure. Waterproofing is laid on the boards and the bottom bar is mounted. If the valley consists of several parts, they are attached from below, the edge of the lower element overlaps with the upper part. The junction of the lower bar and the roofing is insulated. To give the structure a finished look, the upper bar of the valley is installed.

Sheathing, insulation and roof installation

Roofing pie device

The last element of the truss system is the crate. It is stuffed onto the rafters with a step depending on the choice of roofing. For a soft roof, it is made solid, for a metal tile - in increments of 25–30 cm. A sheet for waterproofing is laid horizontally on the crate, the overlap of the strips is 10 cm. If insulation is provided, then the material is laid under the waterproofing. When insulating the structure, we must not forget about the ventilation holes. For a multi-gable roof, a light weight coating is recommended so as not to create additional stress on the rafters, for example, when laying metal tiles.

Installation of the roof of the multi-gable roof is completed

There are many options for how to make a multi-gable roof, they differ in design complexity and appearance. This type of roof looks most organic on square and rectangular houses.

Video

Watch a video that details what you need to know to properly design a roof truss system:

Multi-gable roof

Beautiful multi-gable roof

Multi-gable shingle roof

From metal tiles

Multi-gable roof on a wooden house

For a country house

Multi-gable roof with attic

Simple design

Complex design

Scheme

Multi-gable roof drawing

Wireframe creation

Window frame on a multi-gable roof

Roof structure

Multi-gable roof truss system

The main nodes of the structure

Before deciding to build such a roof, think carefully - are you ready to fork out in the name of beauty? This roof does not carry any particular benefit, but it also has no serious drawbacks.

For those who are planning to build a house and want to turn it into a real work of art, a multi-gable roof will allow you to realize the most original fantasies in this matter. Multi-gable roofs of houses quickly won the hearts of those who love something exquisite and have enough finances, because this type of roof is not cheap.

Multi-gable roof - advantages and disadvantages

You can often hear that this type of roof is used exclusively in the construction of square houses, but this is a myth. It happens that all kinds of premises are completed to the house, and it takes on an awkward shape. In this case, a multi-gable roof completely transforms the appearance of the house - it looks very impressive!

As for reliability, the multi-gable roof device is very strong, but only if the installation of the truss system is done correctly. If you are not a specialist, then it is better to contact experienced builders.

There is a lot of space under a multi-gable roof, you can make a spacious attic or equip a luxurious attic, often for the sake of it such a roof is built to provide good lighting.

Important: when building a multi-gable roof, it is impossible to equip the entire room as residential - you need to select a part in which there will be a ventilated room, separate from the heated one.

Among the shortcomings can be identified:

High cost. Uneconomical consumption of wood, you need to constantly cut, trim, and as a result, some of the material is simply thrown away. The truss system of a multi-gable roof is difficult to install, respectively, the craftsmen charge a substantial amount for work.

High risk of leaks. A feature of such a roof is a lot of slopes, and the places where they intersect are called endova - the most vulnerable places of the roof. There are large flows of water, and if you do not pay attention to the quality insulation of these joints, then at the first opportunity they will leak.

Multi-gable roof elements

The truss system of a multi-gable roof is the same as that of other roofs - Mauerlat, rafter legs, ridge, water drainage grooves, lathing and more inclined ribs with additional racks. All this is fastened together with metal fasteners.

The difference from the standard roof is the presence of ends, grooves, many ribs and slopes.

It was said about the endova above - these are depressions that form at the junction of the slopes, they are also grooves. The ribs are also the joints of two slopes, only they do not go inward, but outward. It is in these elements that all the “sweetness” is, because they form the tongs and the numerous hips (slopes), giving the roof such a special look.

Types of multi-gable roofs

In architectural terms, the hip roof can be given the most elaborate look. There is a place to show imagination and surprise with the unusual form.

Multi-gable roofs are the most popular type. Despite the fact that such a design requires careful fastening with the correct distribution of the load. Pointed corners give the structure rigor and concise completeness. Any country house with such a roof looks rich and original.

Semi-hip gable roofing is also a fairly common type. Installation is a little easier. A characteristic feature of this species is the "smooth" corners. The roof looks flowing and elegant, somewhat reminiscent of a tent. It is only at first glance that it seems more modest than the previous view, if you approach its construction creatively, it can turn out to be unusually beautiful.

truss system

Simply put, the rafter system of a multi-gable roof is two gable roofs that are connected to each other at an angle of 90 degrees.

Due to the large weight and complexity of the structure, both types of truss systems are used in the construction of such a roof - hanging and layered, and also create

multi-gable roof scheme

A few words about how a multi-gable roof is built with your own hands:

On the Mauerlat, with a section of 150x150 mm and a length of 1.5 m, rafters of 150x50 mm are attached.

The rafters are fastened at the top with a ridge of the desired section, then the structure is reinforced by installing intermediate runs.

Since in this design there are places where two roofs are connected, additional rafters must be made there in order to attach sprigs to them.

multi-gable roof - drawing

When all the racks and fasteners are in place, you need to lay a layer of waterproofing film.

The crate is made of boards measuring 32x100 mm. You can bars 50x50.

Important: before installing the rafter system, you need to correctly calculate the slope of the slopes and the load on the rafters so that the structure is strong. It is desirable that this be done by a specialist. In addition, the climatic location is important - if a lot of precipitation is expected, then the slope of the hips should be maximum so that water and snow do not linger. You need to take care of the endows - clean off snow and debris from them.

Be that as it may, experts do not recommend starting the construction of a multi-gable roof on their own. If only because the material will cost you a lot of money and it will be a shame if nothing works out. Of course, the masters will also take a lot, but in the end you will be pleased with the beauty and reliability of an architectural masterpiece.

Video

Categories

Popular

The project of a multi-gable roof of a private house. Multi-gable roof and features of its device. Features of roofing roofing materials

Gable roof device

materials

Stages of work

Features of a multi-gable roof

Advantages

gable roof construction

Roof installation procedure

Conclusion

Advantages and disadvantages

The main elements of the external structure

truss system

Stages of the construction process

We study the truss system of a multi-gable roof

Advantages and disadvantages

Design and types

Calculation of the truss system

General view of the truss system and roofing pie

Summing up

We make a gable roof with our own hands

gable roof calculation

Gable roof device

Stages of work

Multi-gable roof

Multi-gable roof

Positive and negative properties

Components of the frame

Frame calculation

Design features: pros and cons

Rafter device

Peculiarities

Designations of the main structural elements

Installation of the truss frame

Sheathing, insulation and roof installation

Video

Scheme

Multi-gable roof and its features

Design features

Structural elements

Varieties of multi-gable roofs

Advantages and disadvantages of multi-gable roofs

General concepts

Basic structural elements

Making calculations

Load

Do-it-yourself multi-gable roof

Peculiarities

Designations of the main structural elements

Installation of the truss frame

Sheathing, insulation and roof installation

Video

Scheme

Multi-gable roof - advantages and disadvantages

Multi-gable roof elements

Types of multi-gable roofs

truss system

Video