How to fix a skate on a metal tile - detailed instructions. Mounting a ridge on a corrugated sheet roof Ridge strip for corrugated board how to install

The construction of a private house is completed with the construction of a roof. This is especially milestone, since the reliability of the structure depends on the competent implementation of this process. The construction process itself can be conditionally divided into several stages, from the installation of the Mauerlat to the laying of the roofing.

When installing roofing material on slopes, gaps are usually formed at the point of their convergence in the uppermost part of the roof. Therefore, an element is needed that, on the one hand, will protect the under-roof space from the penetration of precipitation and melt water, and on the other hand, will provide roof ventilation. This is the so-called ridge on the roof (photo below).

This element is defined as follows. The ridge of the roof of the house is the upper edge, located horizontally at the junction of the slopes. It also includes those associated with this rib. Thus, this is a prefabricated structure, consisting of a combination of several fragments. Installing a ridge on a roof requires a little theoretical training and basic building skills, that is, in fact, everyone can handle this task.

Types of ridge construction

The ridge on the roof is formed by closing the planes of the slopes. It has two versions and depends on.

• The beam, which is installed on vertical racks, based on puffs or ceiling beams, or fixed on the gables. It serves as a support for the top of the rafters.
• Run (the base of the skate), laid at the top of the rigid triangular trusses from connected in pairs rafter legs, which are interconnected by jumpers. The role of a run can be a log of a roof ridge having a wide section or two boards 5 cm thick sewn at an angle.

From all this it follows that, first of all, we are dealing with a component of two pitched roof. However, it can also be found in designs that have a more complex configuration. For example, or, in which it is displaced.

Relatively recently, asbestos cement was used to decorate the ridge, but today manufacturers more often offer a galvanized roof ridge. The dimensions of galvanized are usually standard: their length is approximately two meters, and the width of the shelves is 25-30 cm.

According to the installation site, there are three main options for the skate:

• Strips of sealant or special ventilation tapes are attached to the edge of the profiled sheet, which correspond to the pattern of the sheets.
• Fastening is carried out in increments of 20–30 cm based on the parameters of the profiled flooring pattern. The overlapped elements are fixed to the already installed bars, screwed with self-tapping screws through the upper corrugation.

Attention!

Note that self-tapping screws must be equipped with rubber or neoprene seals.

• To get the most durable and high-quality connection, it is recommended not to screw in all the hardware at once. It is advisable to make fragments for two to four hardware each. The rest are tightened only after checking the cord and level. Agree that every extra hole in the roof poses a potential threat to its reliability.

Increasingly, profiled sheets are used for roofing. An important component of the gable design is the ridge for corrugated board. It is about him that will be discussed in the article. What is it used for and what role does the sealant play? How to carry out assembly robots?

The ridge is the structural part of the roof - the rib, the intersection of the slopes at the highest point of the roof and the detail of the corrugated board, another name for which is the ridge strip. This plank has the shape of a corner that bridges the gap between two roof slopes. Often the ridge element is made of the same material as the roofing. This allows you to make it merge with the main color of the roof.

The horse has several functions:

• Roof space protection. Since two sheets of corrugated board form a gap at the junction, it must be closed to prevent rain and snow from getting under the coating. Otherwise, the wooden truss system will be subject to rotting and deformation, and metal elements- corrosion. Without a ridge element, the service life of the roof and its heat-shielding properties will decrease significantly.
• Roof ventilation. Thanks to small space between the ridge and the roof covering, the air can circulate freely, and the roof is constantly ventilated. Despite the use vapor barrier material V roofing cake, couples warm air from the room can still rise and reach the insulation. Especially such problems can arise in the area of ​​\u200b\u200bthe kitchen and bathroom. Since condensation is bad for mineral wool, which insulate the roof, the presence of ventilation is very important. In order for the vapors of warm air not to condense, but to rise further and exit through the rib, a ridge is needed.
• decorative feature. Together with the corrugated ridge, the roof looks complete.

As you can see, the corrugated roof ridge allows vapors from the room to escape into the atmosphere, and also protects the roof from precipitation and other things.

Types of skate

Although the ridge batten is a small and simple roof element, they come in several varieties depending on the shape.

Varieties of the skate

Skate types:

• Triangular. This simple design, it is called angular. It looks like a normal corner.
• U-shaped. The skate at the top has folds resembling the letter "P". It looks more interesting, but costs more.
• Semicircular. Used for wave profiled sheet. They look like a gutter with side shelves designed for mounting a ridge.
• Other decorative forms.

The length of the ridge element is 2-3 meters. counting required amount skates for roofing, it is important to consider that they are installed with an overlap. The width of the ridge shelf is from 10 to 30 cm, but 15- or 20-cm elements are more often used. The choice of shelf width depends on the length of the roof slope.

With the help of a sheet bender, you can independently make a roof ridge from corrugated board, but buy finished items easier and a little more expensive.

The purpose of the seal

An important role in the installation of the ridge element is played by the use of a porous sealant. It is not visible like the rest of the roof elements, however, it has the following functions:

• Serves for sealing roofing elements at their junctions. Since the roof surface is ribbed, a gap equal to the height of the metal is formed between it and the ridge, the sealant seals such gaps.
• The seal between the ridge and the corrugated sheet prevents the penetration of birds and insects into the under-roof space.
• Protects against the penetration of precipitation in the form of rain or snow, when accompanied by a strong side wind.

Air passes freely through the seal, which means it does not interfere with under-roof ventilation.

Types of seal

Exist different types seal:

• Universal. Presented in the form of an open cell polyurethane foam tape. One of the sides of the tape is self-adhesive, so the film is simply removed during installation.
• profile. The sealant is made in the form of a figured tape with closed pores. It is selected specifically for the bend of the profiled sheet. This contributes to the complete filling of gaps between materials. In order not to completely block the ventilation of the under-roof space, the seal has holes.
• Self-expanding. It is presented in the form of a tape made of polyurethane foam impregnated with acrylic. On one side there is an adhesive side covered with a film. The sealant after installation is able to expand 5 times, filling all the gaps between the ridge strip and the profiled sheet.

Profile seal

Tools and materials for installation

In order for the installation process to go as quickly and smoothly as possible, it is necessary to prepare all materials and tools. Some work can be done below on the ground, but having climbed to the roof, you need to be sure that all the elements are at hand and you will not need to go down for some trifle.

Skate mounting materials:

• Skate. It is also necessary to cut off the required number and length of these elements at the bottom, remembering the docking during fastening.
• Sealant. It is also important to calculate its quantity even before climbing the roof.
• Roofing screws.

With regard to roofing screws, it is worth mentioning that they come with wood and metal carvings. The former are pointed at the ends, while the latter have a drill. To drill a profiled sheet and a ridge, it is necessary to use self-tapping screws for metal, however, they will not push through the tree, but will drill a hole of the appropriate diameter in it. Self-tapping screws on wood will not be able to drill through metal. That is why, in order to drill through metal (only a profiled sheet, not a crate), metal screws are used. Then they are unscrewed and roofing wood screws are screwed in their place.

Roofing screws

Everything is with the materials, but you need to stock up on a number of tools. Some of them will only be needed at the bottom, and some will need to be taken with you when mounting the skate.

Required tools:

• Ladder with ledges on the edges that allow you to fix it on the roof.
• Roulette.
• Pencil.
• Metal scissors.
• Screwdriver.

Having prepared everything necessary materials and tools, you can safely proceed to the installation of the skate.

To understand how the installation process takes place, we recommend watching this video:

Mounting process

Upon completion of work with the roof covering with a profiled sheet, you can proceed with the installation of the ridge. It is worth mentioning that the edges of the metal sheets should not touch each other, but should withstand a distance of 5-10 cm from top point roof structure.

The scheme of fastening the ridge to the corrugated board

In order for the ridge to be well attached, additional crate bars are pre-installed on the upper edges of the slopes, it is into them that the roofing screws will be driven. But these nuances must be taken into account even before the installation of the ridge. Start off installation work you need not from the side from which strong winds usually blow, but from the opposite side and move, so to speak, towards the wind

Skate installation process:

• Sealant installation. It can be glued to reverse side ridge, and to the roof itself. In any case, the seal should be located at a distance of 3 cm from the outer edge of the plank.
• Skate fitting. The elements overlap each other by 15-20 cm.
• After leveling the ridge, it is finally fixed roofing screws. They are driven through the metal into the crate. Self-tapping screws should be fixed in increments of 30-40 cm from each other and at a distance of several centimeters from the edges of the plank. For ease of installation, you can first fix the skate from two edges and only then screw in all the remaining screws. To do this, use a screwdriver.

As you can see, the process of mounting a skate is not at all complicated and even unskilled people can do it. However, when working at height, it is very important to remember safety precautions. The work ladder must be securely fastened. The person performing the work must be with a safety belt. You should first think about how and for what to fix it. This will contribute to the safety and quality of all work on the installation of the ridge element on the roof.

Horse is indispensable attribute any pitched roof. This is the name of the joint of any two horizontal or inclined edges of the planes pitched roof. Proper execution this item has a very great importance for the reliability of the entire roof.

The tightness of the roof slopes is ensured by a tight fit of the sheets of corrugated board to each other. To do this, when laying sheets of corrugated board at vertical and horizontal joints, an overlap is performed. Often, for greater tightness, special capillary grooves are made along the vertical edges of the sheet. At the same time, horizontal joints of profiled sheets with small roof slopes are sealed with a special roofing sealant.

If it is quite simple to prevent moisture from entering the under-roof space on the plane of the slopes, then only a special ridge element for corrugated board can protect the roof from rain splashes at the junction of two inclined surfaces. This article is devoted to what it is and how to install it.

Ridge for corrugated roofing - functions and uses

Most manufacturers of corrugated board produce, in addition to the profiled sheet itself, all the elements necessary for installation roofing system. The ridge for corrugated board is made of the same galvanized steel or steel with polymer coated, like the profiled sheet itself. It is an organic part of the roof and is usually invisible, although in reality it plays one of the main roles in ensuring the reliability of the roof.

As with any pitched roof, the corrugated roof ridge has special meaning. Its first and main function is to protect the under-roof space from moisture entering it from the outside. Given the very design of the pitched roof, it is almost impossible to implement this task in any other way.

Without a ridge, the life of the roof will be greatly reduced, as well as its thermal insulation properties. Moisture will corrode the metal and, in sufficient quantities, damage the batten and truss system. Therefore, it is impossible to delay the process of laying the roof and, moreover, leave it for a long time in an unfinished state. From fastening eaves plank and start assembling sheets until the moment you complete roofing When installing a roof ridge from a profiled sheet, it should take no more than a few days.

In addition to protection against moisture, the ridge strip for corrugated board performs an equally important function - it creates the conditions necessary for roof ventilation. This is especially important for insulated roofs.

Since metal profiled sheets tend to heat up very quickly under the action of sun rays and cool down just as quickly cold weather, between the waterproofing and the roofing of the profiled sheet, a ventilation gap is always arranged. It is the air circulating in it that prevents the formation of condensate on the inner surface roofing, keeping it from corrosion and subsequent penetration of moisture into the insulation.

In order to ensure ventilation, the installation of the ridge on the corrugated board is carried out in such a way that air can freely exit both from the under-roof ventilation gap and from the ventilation gap between the insulation and waterproofing film. At the same time, for free passage of air, the waterproofing membrane does not reach the roof ridge by 40-60 mm.

Scheme of a ventilated ridge for corrugated board

This ensures the through movement of air from the bottom up: starting from the edge of the slopes and ending vent hole under the ridge element. It should be noted that the attachment points waterproofing membrane near the ridge it is necessary to additionally isolate special tape, and this applies to both the edge directly adjacent to the ridge element and the junction between adjacent membranes - both on the sides and below.

Why do you need a ridge seal for a profiled sheet?

The corrugated board ridge is fastened with self-tapping screws through the upper corrugation of the corrugated board. During installation, a gap is formed between the surface of the ridge element and the corrugated board, equal to the height of the roofing profile. Even with a ridge element size of 200 × 200 mm, with a profiled trapezoid height of more than 20 mm, water splashes can penetrate into the under-roof space during oblique rain and strong wind. To avoid this, a special sealant for the ridge of the corrugated board is laid in this place.

The use of a ridge seal for a profiled sheet

It should be borne in mind that when filling the corrugations of the profiled sheet with a sealant, it is necessary to leave a gap for air circulation. If there is no gap or it is insufficient, then the ventilation of the under-roof space will be very limited, which will affect the life of the roof.

Ridge seal for a profiled sheet, it is selected for a specific brand of corrugated board and, as it were, reflects the shape of its corrugation. If the required sealant is not available, you can use universal option. Such a seal under the profiled sheet ridge has a simple rectangular shape and provides both moisture protection and ventilation. However, it is more difficult to ensure a good fit of such a seal.

How to fix the skate on the corrugated board?

Before attaching the skate to the profiled sheet, you need to make sure that the upper edge of the slopes is approximately on the same line. To do this, you can use a laser rangefinder or a simple cord. The discrepancy is allowed, but at a level not exceeding 2% of the width of the ridge shoulder. That is, if you intend to use a ridge for corrugated board, the dimensions of which are 200 mm wide and 2 m long, then the divergence along the upper edge of the slope cannot be more than 200 0.02 = 40 mm. If the unevenness is greater, then this is fraught with roof leaks in such a place.

The corrugated roof ridge is fastened in increments of 200-300 mm, and the ridge elements are laid with an overlap of 150-200 mm and starts from the side opposite to the prevailing winds in the region. As a rule, the dimensions of the ridge for corrugated board are in the range from 2 to 3 meters. With a longer length, additional stiffening ribs or a greater width are needed to maintain the shape of the ridge.

Fastening the skate to the corrugated board

Typically, the width of the "shoulders" of the ridge is in the range from 100 to 300 mm, which allows you to reliably close the weak spot from the rain. Fastening is carried out at the ends of the shoulders, at a distance of several centimeters from the edge, and in some cases, both the ridge and the seal can be fastened with one self-tapping screw.

The roof ridge assembly from a profiled sheet, as a rule, has one of three forms:

1. Simple L shape;
2. Skate with a top in the form of the letter "P";
3. Skate with a round top.

The latter option provides the best ventilation, but the price of a ridge for corrugated board of this form is higher. Most cheap option- just an L-shaped ridge, but at the same time it is no less reliable with a properly designed and installed roof.

Over the years of using metal tile roofs, it has established itself as durable, reliable and affordable. roofing material. It is more often used for gable roofs, since sheets of thin and light metal with an extruded relief are great for do-it-yourself installation. The only thing weakness such a roof - the angle between the slopes, unprotected from moisture and blown. In order to quickly and aesthetically eliminate this defect, the installation of a type-setting metal ridge is required.

Reasons for installation

The junction between two roof slopes is called a ridge joint. No matter how ideally the installation of the roofing material is performed, small gaps and gaps remain between the sheets. Not only does it look unaesthetic, an unsealed ridge causes the following problems in the operation of a metal roof:

• Penetration of moisture into the gaps between the sheets of metal. Water seeps into any, even minor gaps, penetrating under the roofing material and destroying the wooden elements of the truss system.
• Blowing cold air under the roof. An unsealed ridge is an abyss into which heated air escapes from a heated house, this is a gap not only in the roof, but also in the budget, because in order to maintain optimal temperature more fuel and energy will be needed.
• Ventilation problems. Mounting a stacked ridge on a metal tile will help establish effective ventilation of an attic or attic space. The air there will be fresh, without drafts.
• Noise. The air, getting under the sheets of metal tiles through the ridge, circulates and is divided into streams, due to which the roofing material is deformed and makes popping sounds.

Mounting the skate makes appearance roofs made of metal tiles harmonious and complete, will keep the healthy condition of the wood of the truss system, increasing the period of its use.

Assortment of skates

If before you had to think about how to equip outer corner between the slopes of the roof, now it is enough to come to hardware store and pick up a finished ridge in the color of the metal tile of the form you like. Manufacturers offer the following options:

1. semicircular patterns. A metal that is molded into a semi-circular shape. From the end sides, it is necessary to attach plugs to a type-setting ridge of this shape in order to close the voids into which snow, water or wind can get. The most expensive of the entire range of skates.
2. direct models. Made in the shape of a rectangle, it is used for hip, gable, to decorate the ridge. Fastening a rectangular profile will cost less than a semicircular one, but such a connection will look plain.
3. triangular patterns. They completely repeat the geometry of the angle between the slopes, so their installation does not involve the use of plugs. Most cheap way finish roofing work on the roof of metal tiles.
4. decorative patterns. They differ from other types of skate in their purpose. Fastening decorative elements with narrow shelves does not solve the problems with waterproofing the gap between the joints, but simply gives a neat look.

When choosing a metal ridge connection, you need to pay attention to the width of the shelves and the presence of a rim. Models without rims do not have enough rigidity to remain flat when fastened with self-tapping screws. A narrow shelves, the width of which is less than 150-200 mm are not able to effectively protect against the penetration of water and snow.

Seal selection

Professional roofers advise to inspect the condition of the ridge groove before starting work. If the installation of the metal tile was carried out correctly, then it should not have gaps thicker than 20 mm. Otherwise, a sealant must be used. The following types are suitable for this:

Even if the joint between the slopes seems to be even, its isolation with a sealant before you start fastening the ridge will never be superfluous, because the service life of the roof and the safety of the roof depend on the tightness of the joints. interior decoration attic.

Installation sequence

In order for the skate to perform the functions assigned to it, it is necessary to follow the recommended installation technology. High-altitude work is difficult to do alone, so it is better to get a couple of assistants. Installation must be carried out in the correct order:

When working with a metal tile, it is necessary to screw in the screws on the crest of its wave, use rubber compressor to isolate openings from moisture or special self-tapping screws, the rubber head of which performs the same protective functions. When performing installation, do not screw in the screws too often or rarely, find a middle ground so that the metal tile does not “excite” from an excess of fasteners and does not “clap” in windy weather with a shortage.

Mounting metal additional elements on the ridge will protect the roof from moisture ingress, save heat, however, during installation, do not forget about safety when working at height.

Video instruction

The leading load is held by the upper, horizontal roof beam, which is called the ridge. It is formed at the junction of the slopes and serves as a connecting element of the rafter group. The ridge is of two types, and if in the first case it is a beam on vertical racks, then in the second case the ridge is a run installed at the tops of the rafter legs.

Thus, the ridge of your roof and the choice of its design depends on the preferences of the owner of the house. You always want to get durable and solid roof, and to make it easier to decide, let's figure out the purpose of the skate and its varieties.

In this article

What is a horse for?

In addition to the correct distribution of the load, the roof ridge plays the role ventilation duct, which prevents the accumulation of moisture in the space under the roof of the structure. This air exchange does not allow the processes of decay to develop in wooden elements roofs, significantly extending their service life.

A variety of architectural solutions imply a lot of variability in their execution, but the roof ridge remains the defining strength element of the structure. This also applies to hip roofs, and more complex broken structures with displaced ridges, and the output of attic windows to the slope surface. Therefore, the choice of tool and the calculation of the material depends on the type of roof and the type of ridge, as the final element of the roof.

Types of ridge structures and types of components

We see that the ridge on the roof and the choice of its type determines the design of the rafter system, so we will consider the types of ridges, namely:

• The ridge, which is mounted on vertical racks and slopes, providing a rigid structure and avoiding longitudinal vibrations under wind loads, rafters are attached to it in pairs;
• Either the run, with the rafters connected, serves to stiffen the roof, and is made in the form of two boards at the top of the rafters or a beam under the rafters.

In the first case, first the skate is placed on vertical racks, and then the rafters are joined, taking into account the thickness of the subsequent installation of the crate. In the second case, the process of mounting the rafters is the initial one, and the pairing of the ridge with it will be secondary. The strength characteristics, subject to the rules of construction, are the same in both cases and the design depends on your choice.

Once you have decided on the type of coverage, you need to choose the appropriate material for the roof ridge.

This element is called a ridge bar and is of the following types:

• rectangular section, the simplest in appearance;
• ribbed with a stiffening unit of a U-shaped or other section;
• figured profile, for the best adjoining on slopes;
• semicircular bar with anti-wind plugs;
• conical view;
• and embossed plank type.

In addition to the listed types, modern ridge components for your roof have mortise elements. Mention should also be made of conical plugs, various profiles, as well as parts ridge cover with aerators. Before installation, it is necessary to prepare the elements of the ridge, namely:

• the type of ridge bar you have chosen with or without aerators;
• ventilation tape along the double length of the ridge;
• special fixture for a lightning rod;
• roofing screws;
• silicone or other sealant;
• ridge seal.

All these elements require a quantitative calculation along the length of the roof with a small margin in case of unforeseen circumstances. Do not forget about the safety requirements during installation and work in protective gloves, overalls and soft shoes.

Do not work in windy weather, in order to avoid damage to the material, and to eliminate the risk of injury to strangers. You also need serviceable tools and equipment, which consist of the following kit:

• building level;
• a reliable ladder with a hook knot on the roof;
• electric scissors and scissors for metal;
• drill with drills of the required diameter;
• accurate tape measure;
• complete screwdriver with bits of the appropriate size.

It should be understood that the use of a grinder reduces durability roofing strip, since it violates the protective layer deposited on the surface of the material. After we learned what it is and how to choose this particular roof ridge, you need to calculate the parameters of the product and the subtleties of its installation.

The height of the skate and what does it depend on?

The calculation of the height of the ridge depends on the choice of the angle of the roof slope. It is considered optimal when it takes into account weather specific to your area. The prevailing wind rose dictates the height of the pediment, and the expected snow load in your area makes it possible to clarify the angle of the slopes.

After you have determined this value, the calculation of the height of the upper edge of the roof begins. It should be noted that the roof ridge will also depend on how you are going to use it. attic space. If it is residential, then this will lead to an inevitable increase in the height of the ridge, and the wind load on the pediment and the roof itself will be coordinated challenging task. hip roofs partially remove the atmospheric effect and are a way out of the situation, but it must be understood that with this option, the living area is reduced.

When all the circumstances are calculated, it is possible, even a complex roof, to be divided into more simple elements and calculate each separately. The material used, according to factory recommendations, implies the maximum angles of inclination of the roof at which it can be used for a long time.

If you know such an indicator as the width of the building and the angle of the roof, it is easy to calculate the height of the ridge and the length of the rafters using geometric formulas. At the same time, the specific size in a complex roof depends on the parameters of its elements. Suppose that the length of the gable roof is 6 m, and the slope angle is 40 degrees, then the height of the ridge will be 6 m / 2 x 0.86 = 2.58 m. Each section of the complex roof is calculated in the same way.

Ridge installation technology

Having finished the calculations, having carried out all the preparatory measures, we proceed to the roof overlap ridge elements. The most important thing should be considered the observance of safety regulations, the availability of serviceable tools, equipment and reliable stairs. It is necessary to work together. The installation process consists of a number of steps:

• checking the horizontalness of the ridge beam;
• reliable fastening of the ventilation tape;
• installation of end wind protection elements;
• alternate fastening of the extreme ridge bars;
• installation between the extreme elements of the marking cord, which allows you to maintain horizontality and alignment when mounting the strips;
• the overlap between the ridge strips must be at least 10 cm;
• the fastening step with self-tapping screws should be 40-50 cm, in full accordance with the selected roofing material.

It is necessary to pay attention to the installation of ridge slats with aerators, which should be placed at pre-calculated points, and other slats should be docked with them. If their exact location is not critical, then we mount them sequentially, not forgetting the overlap of the planks. To quickly carry out the work, you need to have a serviceable tool at hand, including a screwdriver with replaceable batteries.

For work on a hip roof, there are mortise ridge strips. But for residential attic space, a variety of elements are used that allow you to protect joints during tie-in skylights and other complicating structural elements. Wind slats, grooves and cornices will become important element roofs and will not allow atmospheric precipitation to penetrate under the roof space. Self-tapping screws should correspond in color to the selected type of ridge cover and be attached strictly at an angle of 90 degrees to the slope plane.

The rules prohibit the use construction foam when installing the roof ridge, because it is destroyed by vibration and ultraviolet radiation, and also prevents proper ventilation under the roof space. Before installing the roof, it is necessary to protect all wooden structures roofs with special impregnations to prevent rotting, mold and the harmful effects of the wood borer.

Conclusion

We hope that we have found answers to all questions about correct installation roof ridge that you were interested in. Installation of the skate, the choice of its type, the right tool, the technology of work, are covered by us in detail and very clearly.

durable, reliable roof will serve you for a long time if you follow the rules of this type of work and choose a quality one, reliable material. Let your cozy house only makes you happy.