Technology of fastening metal to the roofing on the roof

Fastening of metal roofs allows to get a roof, covered with beautiful and durable roofing material.

In the question of how to fix metal, there is nothing complicated.

Therefore, a layman can also cope with the task.

The main thing is to learn the basic concepts and terms that experienced roofers use in the process.

After all, sometimes, when viewing master classes, using photos or video materials, there are really unusual words.

And, as everyone knows, everything should be extremely clear, correct and clear, especially for beginners.

The roofing vocabulary contains such definitions:

• Wave is a transverse row of metal roofing. It has two parameters: step;height;
• Row - longitudinal sheet.

General information about metal tiles

Metal tiles are sheets of roofing material. For their production, galvanized steel and polymers are used as a protective coating.

At the moment, metal sheets with a width of 1.18 cm are in great demand. Usually, 8 cm of them are taken for the formation of an overlap, the work remains 1.10 cm.

Standard step of metal tile is 35 cm, if necessary, other sizes can be found on the roofing market.

For mounting metal, in addition to sheet products, you will need roofing slats to organize valleys, cornices and skates.

In addition, it is necessary to have at hand a metal flat sheet, suitable for the color of the shingles, for the arrangement of aprons.

Fastening of sheets of a metal tile to a crate can not do without cutting of products. The shingles are adjusted to the required dimensions, using tools without abrasion.

Special scissors for metal cutting or circular saws can be used as such devices.

In addition to the aforementioned tinsmith tools, no other device is recommended to fit metal sheets.

This is particularly true of the Bulgarian, which during the cutting process melts the polymer layer of the shingles.

If you've ever seen a video on the subject of roofs, you've noticed how carefully workers move around the roof, stepping only on the laths of the crate or into the bend between the waves.

It will be right to follow suit.

As for how to fix metal roofing and which fasteners are best used when assembling sheets, then this question has a significant amount of photo and video information in our article.

Basic rules for fixing shingles

The metal tile is fastened with self-tapping screws with a rubber gasket. The manufacturer of metal tiles has taken care that the fastening elements also perform an aesthetic function.

Today self-tapping screws can be found for any color solution of products.
In the process of screwing self-tapping screwdrivers do not be zealous.

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The torque of the tool is reduced, which allows to reduce the intensity of fastening fasteners and not to compress the rubber gasket.

Metal roofing with concealed fastening is characterized by mounting technology.

Since the fastening site will in any case overlap each subsequent sheet, the above-mentioned colored screws with a rubber seal as well as simple galvanized screws can be used as fasteners.

At the same time, the sheets are fastened together by means of mounting grooves and protrusions present along the edges of the products.

This fastening technology allows you to mount an ideal surface with absolute tightness.

Mounting of metal tiles is performed by self-tapping, in the area of ​​bending waves, strictly perpendicular to the plane of the product.

The bottom sheet of the tile is fastened to the initial bar, with the indentation of screwing the fasteners through the wave.

Vertical overlapping fastens with short screws, it's right to do this at the point of descent of the wave, which will allow the products to contact tightly.

High quality fastening to the roof, provides fixation of the roof tiles along the perimeter of the roof, where the screws are screwed into the bend of the wave.

The rest of the fasteners are arranged in a staggered manner along the tile. If you touch the issue of the necessary number of screws, then with a standard calculation per 1 m2 of area, you need 8 fasteners.

For fixing accessories use screws, at the rate of 3 pcs.on 1 meter linear.

The metal tiles are attached to each other by waves, which allows to give the surface a holistic view and to protect it from the wind load.

To ensure that the longitudinal joints are in tight contact with each other, the screws are screwed in until the sheets are fixed to the crate.

The overlap point is an vulnerable part of some types of metal tile.

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At this point, the formation of a capillary effect is possible when water gets between the tiles and does not drain down, but rather rises.

To prevent trouble, it is possible to create an anticapillary groove in the form of a groove over which the liquid will flow.

In this case, the sink groove of one product should lie on the groove of the next one.

Features of fixing the shingles in several rows

The technology of fixing the shingles in several rows can cause the connection of four sheets at one point. When the sheets of products are fastened in one row, a displacement problem appears.

For example, if in this case, take a 10-meter cornice, the level of displacement will reach 30 mm.

Therefore, it is recommended to lay the sheets with a slight turn. The turning side depends on the location of the anticapillary recess.

If the groove is on the right, then the sheet is turned clockwise, and if the anticapillary groove is organized from the left side of the product, turn it counterclockwise.

The further scheme of fastening of a shingles on a rectangular roof carry out at own discretion.

The main thing is to work comfortably, 2,3 and the subsequent sheet can be mounted on the left or right side of the fixed product.

It is better to mount the shingles from the roof part without the bevels, continue laying in the direction of the valley, arranged between the ramps or to the part of the roof of the abutment with the ramp.

Regardless of the geometric shape of the roof slope, the leveling of the metal tile is carried out, orienting itself on the cornice bar - its horizontal position.

By arranging the curtain rail, the sheet of the article is fastened so that its edge not only closes the bar, but leaves behind it for 40-50 mm.

Then the rainwater will fall into the drain, and not be blown by the wind on the wall of the house. Cut the protruding product will not sag if the bottom edge of the crate is thicker by 10-20 mm.

Before finally fixing the metal on the lath, a block of 3-4 pieces is assembled.

The first sheet is baited at the top with one screw, which, when aligning the row, will allow the product to rotate in the desired direction.

It is not recommended to make a block of more shingles, this complicates the work process and it will be difficult to achieve the quality of the coating.

If the roof slopes have a triangular shape, then before the installation it is necessary to make a marking, during which they mark the point of the center of the slope of the roof and the central axis.

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The same axis is made on metal, in the process of arranging the roof, the planned lines must correspond to each other.

The first sheet is baited at the top, the further scheme of fastening of metal tile is carried out, as well as with rectangular slopes.

Fastening of the ridge strap

The skate construction on the roof is considered the final stage of roofing works. The purpose of the ridge is to hide the gap between the adjacent roof slopes.

The horseshoe must be installed correctly, then only it will be possible to eliminate leaks and provide a qualitative ventilation gap of the under-roof space.

The horseshoe is purchased together with the metal tile, the coloring and the texture of the ridge fully correspond to the roofing sheets.

Today the following types of ridge are in demand:

• Decorative skate - is a narrow leaf, designed purely for decorative purposes. The horse is mainly used for upgrading the tent roofs and roofs;
• Semicircular horse - has an aesthetic appearance, the end part of the ridge is equipped with special plugs;
• Rectangular skate - the cost of such a ridge is much lower than a semicircular ridge. For its end part, plugs are not needed.

Purchasing a skate, it is recommended to carefully consider the width of the shelves of the product.

When fastening, the ridge's shelves lie directly on the slopes, if the product is less than 150 mm wide, it is impossible to exclude wind blowing snow under the roof ridge.

To fully equip the roofing ridge glass wool is used, a small layer is laid in the ridge groove in order to prevent blowing snow under the waves.

The second important detail, which should be taken into account when fastening the ridge - is its beading. The uncoated horse will not receive proper rigidity, in addition, its bottom view will not be aesthetic.

More details about the fastening of the ridge strap will allow the following video.

Metal roofing slats made of metal roofing

In addition to the metal skate for roofing made of metal, without which you can not hide the joints of the ramps of the horizontal and inclined surfaces, a number of other useful elements are used, for example, snegozaderzhateli, kapelnik, wind bar, etc.

The roofing hanger for metal roofing is no different from other varieties used for other types of roofing.

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If you choose the right color picker, it will visually merge with the roof, and the whole surface will look like one.

The drip cap is mounted on a horizontal roof slope, in order to protect the roofing system from moisture ingress. Kapelnik diverts water into the gutter attached to it.

Kapelnik can be attributed to the category of functional, additional elements with decorative properties.

The presence of the end or wind bar on the roof, allows you to protect from the wet end of the slope of the roof. Fastening of the wind bar closes the edge of the skeleton framework from atmospheric influences.

In addition, the end plate completes the decorative design of the roof from the front side of the ramps.

Endova external and internal - functional elements of the roof.

External decorative valley is fastened in the areas of an internal sloping junction of skates in order to hide the oblique cut of the shingles and to protect the junction from dust and moisture.

The inner valley is attached under the roof at the junction of inclined ramp joints.

Snow holders have a functional and decorative function.

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The use of snowshoes can prevent a sudden avalanche of snow from the roof, which often causes deformation of the brackets and gutters of the drainage system.

Fastening snegozaderzhateley carried on the tile over the location of the bearing wall of the house under the upper wave of the sheet.

Snow holders are attached using an amplifier and long self-tapping screws that allow the snow holders to be held firmly under the load of snow.

As the reinforcing parts use corners, they are fixed inside snegozaderzhateley under the bar from the side of the ridge.

Snow holders are mounted above the window and doorways of the house. For a multi-level roof installation of snegozaderzhateley held at each level of the roof.

If the length of the ramp is too long, additional snow chains are usually attached.