The device and purpose of the cornice strip for corrugated board. Cornice strip for metal tiles and corrugated board - types of structures and installation technique

Among the additional roofing elements, a special place is occupied by a cornice strip. On the roof area, this element occupies an insignificant space, however, the main protective function and maintaining the integrity of the roof from moisture falls precisely on the eaves bar. What you need to know when installing given element so that "the bar does not sunk"?

What does the cornice plank look like

The cornice plank is made industrial way on sheet metal equipment. In most cases, the bar has a standard configuration, differing only in the angle of the shelf.

The width of the vertical plane and the dimensions of the cornice strips depend on the design truss system, and logically repeat the angle of inclination of the roofing sheet.

The length of the finished product can reach two to three meters, and the dimensions of flat shelves and edges are 80x60x10 mm or 100x60x20 mm, the thickness of the plank sheet is 0.4-0.6 mm.

It is along the bend of the two planes of the plank that water drips freely into the drainage system, bypassing the reliable rear - the frontal eaves of the roof. Recall that the bar has a second name - a drip.

Do not confuse the design of the end and cornice strips. The differences between the slats are in the method and place of attachment.

The end plate protects the side edge between the eaves of the house and its ridge.

Traditionally, drip strips are installed under the waterproofing layer on the crate with an overlap and the hanging edge is led into the gutter.

For each type of roofing sheet, their installation technology is distinguished, however, the design of the cornice strip for soft roof and metal-tiled roofs are the same.

Installation of eaves for various types of roofing

corrugated roof plank

The installation of a roof from profiled sheets begins with the installation of a plank. A prerequisite for the installation of a cornice strip for corrugated board is its location below the waterproofing carpet. In this case, moisture or condensate running down the waterproofing film must fall on the plank and then break into the drainage system.

Initially installed on the roof slopes end boards. The topmost board is installed above the crate and a bar is attached to this board. Additionally, a breathable seal is mounted under the corrugated board for the natural removal of water vapor. The planks are overlapped and fastened using self-tapping screws or galvanized bolts.

Helpful Hints

metal roof plank

Installation of the eaves strip for metal tiles is carried out before laying the sheets. Initially, the frontal (cornice) board is installed to the ends of the truss system.

The cornice board can be installed in special grooves for galvanized fasteners.

Then prepare the support for filing the overhang. The filing is carried out using a tongue-and-groove board and a support bar. The next step is to set the attributes drainage system. The eaves plank is installed between the flooring of sheets on top gutter mount.

Fasteners are self-tapping screws screwed into the frontal (cornice) board in increments of 30 cm.

More detailed information on the installation of a drainage system and a drip, are presented in the video.

roofing plank made of soft materials

The cornice strip for soft roofing can have a bend of 100-130 degrees. Therefore, it is selected depending on the slope of the roof slopes. The dropper is mounted along the edge of the roof in a vertical downward direction.

This condition applies to all types of soft roofing: rolled, shingles or roofing membranes.

The roof space of the crate is equipped with holes for ventilation and air passage through the aeration channels. The base of the cornice strip for tiles is fixed to the crate and gable protective strips are installed on the edges of the crate. Then they process and install the carpet under the valley, having previously smeared the edges with bituminous mastic.

Recommended for set bar glue soft roofing material, and then lay ordinary tiles. dispose soft tiles it is necessary so that the tiles of the first row "capture" most of the roof. subsequent ordinary tiles stacked with a shift. The edges of the tiles at the ends are glued especially carefully.

A plank for a soft roof is mounted with an overlap (with minimum width edges 2 cm) and fixed in a zigzag manner. For fastening use roofing nails, the fastening step reaches 10-15 cm.

How to install a dropper on a tile with your own hands is shown in this video.

Helpful Hints

For a roof made of corrugated board or metal tiles, the base of the plank is fixed to the crate. The lower edge of the plank is directed to the installed gutter box or gutter vertically or at an angle. The drop radius from the wall plane can be 45 degrees.

After adding water to the bar and visually tracing the passage of drops, the placement of the dropper is selected under the exit of water drops. You can slightly lower or shorten the slope and location until the drip is completely fixed.

Drop Aprons

A healthy alternative to a metal cornice strip when constructing a roof made of soft coverings are decorative drip aprons, which are a twisted coating of the sweep. The outer layer of aprons is a steel galvanized polymer coating 0.7 mm thick.

It is a real pleasure to mount such a dropper: I glued it with special mastic, unfolded the “self-assembly” and laid it out at the place of attachment. Perhaps these promising materials will find their fans when installing a “capricious” bar.

Thus, the process of installing a drip for any type of roof can be done independently.

In the manufacture of a cornice strip for metal roofing, it is necessary to use a material similar to the roofing. chief constructive element galvanized steel protrudes in it, with a thickness of 0.4 - 0.5 mm.

The cornice strip used for covering metal tiles can be said to be a very important element. After all, thanks to this component, not only improves decorative look roof, but also it performs a protective function.

We install the cornice strip after the entire metal tile is laid and fixed on the crate. But in some cases, it is fixed even before the laying of the metal tile.

Due to its elongated shape, it can protect not only the frontal cornice board from moisture, but also protects the space under the roof from moisture.

Installing the cornice strip

In order to install the cornice strip, the first thing we need to do is fix the front board. It is fixed to the ends of the rafters with galvanized nails. But there is also Alternative option- fixing the cornice board in the grooves on the rafter system.

Then we proceed to filing, using a tongue-and-groove board or corrugated board for this. We fix the support beam to the wall surface, which will serve as an additional support for filing the overhang of the eaves.

Before proceeding with its installation, we can also mount brackets for the drainage system. Then we begin to install the eaves bar itself. And as it was said earlier, if necessary, this can be done before the start of the process of laying metal tiles.

The bar can also be mounted on top of the drain mount, using self-tapping screws for this or by screwing it into the cornice or frontal board. Between the screws we leave a distance of 30-35 cm.

Mounting features

We fix the cornice strip above the height of the wave of the tile, while it should also be located above the level of the crate. The corner of the end of the roof is completely blocked. We install fasteners on the top and sides. Thanks to the self-tapping screws located on top, the plank is fixed to the crests of the waves of the tiles.

After fixing, a joint is formed between the roof covering and the plank, which we carefully seal.

Video on installing the cornice strip

Today, metal roofing is often used to cover the roof. This reliable and beautiful material will protect the house from atmospheric phenomena for a long time. But the roof will not fully fulfill its functions if it is not equipped with all necessary elements, for example, a cornice strip for metal tiles. Without this additional element, the roof, and therefore the whole house, will not be reliably protected. And how to install a cornice strip on a roof covered with metal tiles? What are the nuances of this task? Let's deal with these questions.

What are add-on elements

Any roof is a complex structure. Numerous elements are used in its construction. You should not think that it is enough or other roofing material and nothing else to use. For better protection of the entire structure, it is required to use some additional elements, namely:

• Skate. This element is located at the very top of the roof. His the main role- this is to hide the joints of sheets of metal or other roofing material. In addition, it also performs an aesthetic function;
• End strip - serves to protect the ends of the roof;
• Endova;
• low tides;
• Droppers;
• and so on.

All these add-on products improve operational properties roof and protect its main elements. If you decide to do without them, then be prepared for the imminent repair work. Yes, and the operation itself will be significantly complicated. To such additional elements, the installation of which is needed in without fail, the eaves plank also applies.


About the product itself

In addition to roofing material, numerous other products are installed on the roof. It is impossible to do without such additional elements. The cornice strip for metal tiles, as well as for other types of roofing material, performs the following functions:

1. Protects walls and foundations from falling water dripping from the roof.
2. Prevents snow from getting under the metal tile during winter.
3. Gives the roof a finished appearance.

Of course, you can do without this additional element. Many practice the installation of only one frontal board. But such protection cannot be considered reliable enough. Wood, namely the frontal board is made from it, easily rots. This is especially true when wet. Therefore, any professional will advise you to spend a little time and money and mount the eaves bar. In addition, such an additional element significantly improves the appearance of a metal roof.

Do not confuse a cornice bar with a drip. Both options for additional elements are used with metal tiles, but they perform a different function. The cornice bar serves to protect the frontal board from getting wet. A dripper is needed to divert runoff from the roof into the drainage system.

What is the eaves plank made of and its dimensions

For the manufacture of the cornice strip, the same material is used as in the manufacture of metal tiles. This is a sheet of galvanized steel. As a rule, an additional element is purchased simultaneously with the roofing material. This makes color matching easier, which helps improve the look.

In the manufacture of a cornice strip, which is used with metal tiles, manufacturers perform the following sequence of work:

• the steel sheet arrives from the supplier's factory. It already has a galvanized coating;
• steel sheet is passed through special machine. With its help, a curved shape is attached to the future eaves strip for metal tiles or other roofing material;
• to improve protection, a layer of anti-corrosion agent is applied to the entire surface;
• after that, the bar is coated with a primer. This layer improves adhesion and the protection will stick better;
• next, the work of applying polymer paint. It is she who will be the main protection of the cornice strip. Plus, the polymer layer gives finished product attractive appearance;
• the inner surface of the cornice strip, which will be hidden from view, is covered protective varnish. It will protect the additional element from moisture, which forms in the form of condensation on the metal tile.

The cornice strip may have a protective layer of various materials. Most cheap option- This is a simple galvanization. But such products are rarely used, as they have a relatively short service life. It is best to purchase additional elements with polymer protection. As a rule, it is polyester or plastisol. In this case, the cornice plank will serve as long as the metal roofing. The disadvantage of such products is their cost. But this disadvantage is compensated by the lack of repair during the entire period of operation.

If we talk about the size of the cornice strip, then there is little choice. The product itself has a length of 50 to 60 centimeters, in some cases you can find elements with a length of two meters. The thickness used in the manufacture steel sheet lies within 0.4-0.5 mm. It is this option that is considered the most durable in bending, which means that it will not be so afraid of mechanical stress.

The dimensions of the cornice strip may differ from the standards. Here much depends on the manufacturer, or rather on the equipment available to him. Some companies offer to make the product of the length that the buyer needs. In this case, you will have to pay more, but the appearance of the roof and its waterproofing will noticeably benefit.

When making measurements before buying, it is worth remembering one nuance. The installation of the eaves of the metal tile, as in the case of using other roofing material, is overlapped. Therefore, the product must be taken with a margin.

How to fix a cornice strip

Any product, regardless of its quality, will work at full "power" only if it is installed correctly. The same applies to the additional element considered in the article. Installation of the cornice strip of metal tiles is carried out taking into account the following:

After all these works, you can proceed to. But this must be done carefully so as not to damage the protective layer of the cornice strip. This is especially true for inexpensive galvanized products. Otherwise, this additional element will not serve as long as it is "supposed".

Particular attention when installing the roofing "pie" should be paid to waterproofing film. All experts recommend laying it under a metal tile. This protective layer should go over the cornice strip. In this case, moisture in the form of condensate will flow freely from the roof. In this case, the waterproofing film should not extend beyond the metal tile. This material can quickly fail under the influence of ultraviolet radiation from the sun. Therefore, it must be completely covered under the roof.

Metal roofing is one of the most popular materials used for roofing. It attracts buyers with high reliability and beautiful appearance. What gives it the greatest value is its ability to provide homes good protection from atmospheric events. In order for the roof to perform its functions correctly, it must be equipped with all the necessary elements. Among them, there should also be a cornice strip for metal tiles. Therefore, a private developer who decides to lay a metal tile on his own needs to find out in advance how to install the eaves strip on a roof covered with metal tiles.

Types of additional elements

The roof of any object is quite complex structure. During its manufacture, many different elements have to be used.

Those who think that the installation of metal tiles is reduced only to laying the material on the roof of the house are wrong.

In order for the structure to properly perform its functions, during the installation work it is necessary to use a number of additional elements:

• Skate. Component roofing, located at the top of the roof. It is necessary to mask the joints of sheets of metal. It also performs an aesthetic function.
• End plank. Another important element roof structure, which is entrusted with the function of protecting the ends of the roof.
• Endova.
• Low tide.
• Droppers.
• Snow guards for metal tiles, etc.

The listed products improve performance characteristics roof and provide protection for its key elements. You should not refuse to use them during the installation of metal tiles or other roofing material, otherwise you will soon have to carry out unplanned roof repairs. In addition, without them, you will have certain difficulties with operation. Therefore, install listed items, including the eaves bar, is a must.

Product description

As mentioned above, the installation of metal tiles requires the use of various additional products. Among these elements, the eaves plank is also considered important, which performs a number of functions.:

• gives the roof a finished look;
• prevents snow from getting under the metal tile in winter;
• protects the foundation and walls from the penetration of drops of water flowing from the roof.

Of course, you can lay metal tiles without this element. Some developers are limited to using only one frontal board when carrying out installation work. But such a roof cannot guarantee good protection for the house.

After all, the tree from which it is made frontal bar for roofing, easy to rot. And with frequent wetting, this process will occur much faster. That's why experienced builders strongly recommend spending a little time and money and mount the bar. It will not only protect the roof of your home, but also significantly improve the aesthetic characteristics of the roof.

Before buying a cornice strip for a metal tile, it does not hurt the owner to find out how it differs from a dropper, with which it is often confused. The difference between them lies in the functions they perform. The main purpose of the bar is to protect the frontal board from getting wet. The dripper also ensures the correct removal of water from the roof into the drainage system.

Manufacturing and dimensions

The cornice strip is made from the same material that is used for the main roofing material, in our case - metal tiles. Therefore, it is made of galvanized steel. It is best to purchase this element along with roofing material, which will help facilitate the task of choosing suitable color, and this will positively affect the appearance of the structure.

Manufacturing process

The manufacture of the bar is a simple process in terms of technology and involves the following steps:

To create a protective layer, manufacturers use different materials . by the most budget option considered normal galvanized. It is not recommended to buy such products due to their very short service life. Elements providing protection based on polymers are considered more practical. As the latter, polyester or plastisol is usually used. They are able to provide the bar with the same service life as the roofing. Such products have only one drawback - high cost, but it is fully offset by the lack of need for repairs during operation.

Board dimensions

Another characteristic that you need to pay attention to when choosing a plank is the dimensions.. The standard for this additional element is a length of 50-60 cm, although sometimes in stores there are elements longer than 2 m. As for the thickness, it depends on the steel sheet used in the manufacture and usually does not exceed 0.5 mm. Such products have maximum bending strength, which means that they can easily cope with any mechanical stress.

But not always planks have standard sizes. For some manufacturers, they may differ, which is largely determined by the equipment used in the manufacture of this element. There are companies that can make a bar of the length required by the buyer. Although such elements will come out more expensive, the appearance of the roof and its waterproofing will benefit from this.

When taking measurements, it is important not to forget one thing important point . The plank, like the roofing material itself, is installed by overlapping. Therefore, it is recommended to buy this item with a margin.

Mounting features

In order for the product, regardless of the quality of manufacture, to properly perform the functions assigned to it, it must not only be correctly selected, but also installed. In the case of a bar, you need to know the features of its installation:

After completing all of the above steps, you can start direct laying and roofing material. But be very careful during installation, because by negligence you can damage the protective layer of the cornice strip. Especially if you use inexpensive galvanized products. If you leave this moment without attention, then the bar will require replacement ahead of schedule.

During the installation of the roofing "pie", pay special attention waterproofing film. It is desirable to lay it directly under the metal tile. Mounting technology requires that the material go to the bar. So you will ensure the unhindered flow of moisture in the form of condensate from the roof.

It is also necessary to take into account that the waterproofing film should not go beyond the boundaries of the roofing material.. Otherwise, it will be regularly exposed to ultraviolet radiation and will need to be replaced very soon. For this reason, it should be entirely placed under the roof.

Installation of metal tiles is very challenging task not only for a private developer, but even for an experienced specialist. After all, it is not enough just to choose the right roofing material. It also needs to be properly installed.

In accordance with the accepted technology, it is necessary to fix the metal tile using a certain set of additional elements.

Among them, there should also be a cornice plank that plays important role in providing reliable protection building . Therefore, it is undesirable to installation work without such products, if you do not want to carry out an unplanned repair of your roof in a couple of years.

Only when using the entire set of additional elements, it is possible to ensure correct execution the roof of their functions. Therefore, after you choose a roofing material, you immediately need to resolve the issue with additional elements. In the case of the plank, this plays a particularly important role, since this element helps to protect the roof structure from moisture penetration.

Here it is important not only to correctly calculate its dimensions, but also to study other important characteristics, including the type of protective coating. Considering that most private developers do not know about all these nuances, it is best to select additional elements with the direct participation of a specialist, as well as carry out the installation work itself in his presence.

Any pitched roof from flexible tiles should be framed by means of metal strips: adjoining, cornice and end. Every self-respecting manufacturer of modern roofing materials produces components that have a "company" name, but the purpose of such elements is the same. Additional elements can be both standard and individual. Usage roofing strips it is advisable on roofs with a pitched slope of at least thirty degrees.

purpose

Cornice strips or drips mounted on roof cornice, closing the frontal board of wood and the supporting part of the truss system. They serve to protect the closed elements from moisture and redirect water flows into the gutters.

End or gable planks mounted on roof gables and serve as protection end parts roofs from wind and snow, and also divert water flows from the cornice filing.

Installing a drip (left) and wind strip (right) for a soft roof

Planks or linings of abutment mounted at the junction of the roof and vertical surfaces. They protect against the accumulation of dust and debris at the junction points, and also contribute to the unimpeded draining of water.

In addition, additional elements of the plank type can be attributed ridge fan or aerator, the main function of which is the device of a ventilated type ridge when installing roofs from a flexible tile covering. Individual additional elements for roofing from flexible tiles can be presented plinth planks made to customer's specifications.

Elements of flexible tiles

Additional elements and components used in the process of arranging roofing from flexible tiles include: metal strips, metal or plastic snow retainers, ridge aerator, ventilation systems. Individual roofing elements from metal can be represented by wind vanes, chimneys, caps, ebbs, parapets and plinths.

End (wind) bar

Wind or end strip for flexible tiling is installed on lining carpet in the direction from the ridge towards the cornice overhang. Above the bar is made.

The plank prevents precipitation from blowing under the tiling and contributes to additional waterproofing of the joints of the roofing and the roofing end. Represented by galvanized metal with a polymer coating to match the roof. Standard sizes are 10 x 2.5 x 13 x 1.5 cm with a length of two meters.

Cornice strip (drip)

It is installed before the installation of the roofing on the cornice overhangs, along the crate of the lower edge of the roof. Represented by galvanized metal with polymer coated, the thickness of which is 0.45 mm. The standard dimensions are 10 x 6.5 cm with a fold of 1 cm and a length of two meters.

Wall connection

It is mounted in the conditions of direct or reverse roofing breaks, at the junction points of the roofing and walls or chimneys. At the break point, one part of the plank is located under the top roofing sheet, and the other is on top of the bottom roofing sheet. Promotes reliable sealing of joints. The upper and lower junction bars are different. The standard dimensions are 2 x 4.5 x 1.5 x 1 cm with a length of two meters.

Material calculation

The standard length of roofing additional elements in the form of strips produced by various manufacturers is two meters. To correctly calculate required amount of all the strips necessary during the installation process, it is necessary to perform the following calculations:

• depending on the category of the additional element, it is required to add up all the lengths of those sides roof slopes where their installation is necessary in accordance with technological standards;

• the resulting amount of lengths must be divided in accordance with an overlap of ten centimeters by 1.9;

• to calculate the amount of material for arrangement lower valley it is necessary to divide the result by 1.7 with an overlap of thirty centimeters.

Should be respected standard rule and any result is rounded up.

For fixing all additional elements, it is necessary to use only hardware recommended by the manufacturer. Anchoring ridge bar performed by means of special ridge screws, maintaining a standard step. When fixing additional elements, special ones are used, optimal size which is 30 x 10 x 2.5 mm.

Summing up

Cornice and end strips fastened to the base by means of special galvanized nails or stainless, with a countersunk head type, self-tapping screws with a distance of 12-15 centimeters in two rows and in a checkerboard pattern. When installing cornice strips, an overlap of 3-5 centimeters is performed.

In order for the front strip to have a high-quality adjoining to the cornice strip, it is necessary to cut the strip with metal scissors after installation gable overhang. The final fixing is carried out only after fitting and trimming.

The use of individual additional elements allows you to give the building original style. For standard additional elements, it is advisable to use the rule of selecting the color of the planks to match the main roofing.