Scheme of metal tile fastening. Dimensions of screws, accessories, technology

Metal can be called a truly unique building material, which is not only longevous, but also attractive appearance, and high strength, which is manifested throughout the life of the plant. It is made of steel sheets, which in the process are coated with a polymer. Special stamping made it possible for the material to look as if natural shingles were used in the work . If the sheets are fastened using technology, then the joints of the sheets along the waves and rows will be invisible. Use this covering material on pitched roofs with a tilt angle of 14 ° or more. Together with the metal tile it is necessary to purchase roofing slats, namely: end, skate and cornice. In no way do without flat sheets with the same coating that has a metal tile. With the help of these additional elements you can form aprons and other nodes of the roof.

Recommendations for fastening metal

Before you fix the metal, you should become more familiar with the technology of work. Use for this purpose self-tapping screws, the most common sizes of which are the following: 4.8x35 or 4.8x28 mm. Fasteners should have a rubber gasket. In order to exclude the allocation of screws on the surface, their hats are painted in the color of the covering material. When using a screwdriver, the torque must be limited. After the pressing is completed, the rubber gasket should only be slightly tightened. With insufficient torque, you will not be able to achieve the desired degree of sealing of the hole. Otherwise, there is a risk of turning the screw, which will cause the fasteners to loosen. Among other things, in this case the gasket will be deformed, which will shorten the life of the coating.

Tips of the master

If you are thinking about how to fix metal, you should remember that the screw is strictly perpendicular. There must be an angle of 90 ° between the surface of the lathing and the fixture. Fastening at installation of sheet on a lath is screwed in a place of a bend of a wave. The bottom sheet to the starting plate is fixed with the pitch between the screws through the wave. Many novice masters are thinking about how to fix metal roofing at points of vertical overlap. In this case, you can not do without short screws, the length of the screw is 19 mm. This screw is installed in the wave recession. On the perimeter of the roof system , screw the self-tapping screws into the deflections of the wave. The screws are staggered, they should be installed in each grate.

Features of fastening sheets

Self-tapping screws for metal will be used up in a certain amount. On a square meter of coverage will be needed 8 pieces. You should also remember the need to fix accessories, in this case you will need 3 pieces per linear meter on each side. The accessories are fixed in such a way that the screws are removed from each other by 350 mm. The scheme of fastening metal tiles with self-tapping screws assumes installation of fasteners in a transverse wave. When fastening along a slope, the fastener must be installed in the upper comb, then it is located through one wave. When installing the fasteners, you must dispose of the formed shavings and sawdust. For this purpose, a soft-nosed brush is suitable. If you do not do it in time, then the shavings will rust and ruin the appearance of the roof.

Features of metal tile fastening for multi-row laying

Fastening of metal roofing with multi-row packing can assume the presence of up to 4 sheets at the junction. If you overlap in one row, then there will be an offset. On the 10th cornice, it can reach 3 cm. This recommendation is correct for the case where the anticapillary groove is located on the right. The amount of displacement when turning should be about 2 mm. The scheme of fixing metal tiles with self-tapping screws when installing the second and subsequent cloths assumes their location to the left and right of the first one. Begin work is necessary on the side of the house where there are no bevels and there will not be a need to prune sheets. The laying continues in the direction of abutment, which is formed by another ramp. You can move forward to the valley, which is located between the neighboring slopes.

Fastening of a metal tile at a triangular slope

The scheme of fixing the metal tiles with self-tapping screws will be slightly different if the roof slope has a triangular shape. In this case, the master performs the marking at the first stage, indicating the central part of the ramp, through which the axis is drawn. Further, the same axis should be marked on the roofing material web. When laying, the axes must coincide. The sheet is fixed by one self-tapping screw, which is located at the top point. Then the work is carried out on the same technology as on rectangular roofs. When installing on triangular slopes in the valley area, the metal tile should be trimmed. For convenience, it is necessary to acquire an improvised tool, which is called a devil. The scheme for fixing the metal tile with self-tapping screws provides for the use of four boards, two of which must be parallel to each other, while the other two are perpendicular to them. The mount will be hinged, not rigid. The step between the inner surface of the left board and the outside of the right should be 1100 mm, this parameter is equivalent to the working width of the covering material.

Additional nuances

For the work, the metal tile, which needs to fit the dimensions, is laid on the devil. One side of the tool should be on the edge of the valley or the ramp. When using this appliance, care should be taken to ensure that the horizontal boards are horizontal.

Laying scheme of metal with hidden fixing

If you decided to use metal roofing with concealed fastening for the work, then for this you should take galvanized roofing screws with a press washer. Due to the fact that the fasteners on the surface will not be visible, you can use galvanized screws that do not dye the color of the roof. As the main difference is that there is no need to make through holes in the coating, because the screw will be installed in a special groove. Cloths with each other are fixed by hooks of mounting protrusions and grooves, which are located on the edges. The place where the samorez will be located is hidden by the next canvas. There will be no fasteners and through holes on the surface. This way you will be able to create a sealed and more durable coating.

Fastening of a metal tile on the ridge and cornices

Self-tapping screws for metal are also used to decorate the cornice. The webs should be mounted in such a way that the bottom cut extends beyond the edge of the bar by 50 mm. This will allow rain water to enter the gutters. To prevent the lower cut from dangling, the edge of the lath should be thicker than the rest by 15 mm. Sometimes the plank of abutment for metal roofing is installed on the cornice, it is necessary for water drainage. On the cornice, the fixing points of the material are along the line of the cornice 8 cm below the punching. At the same self-tapping screws are installed through one wave. If the length of the top cut of the covering material is more than 30 cm from the extreme punching line above the upper board of the shed system, a roof board must be installed, its thickness must be increased. The master must provide an air gap between the components of the bale system and its upper elements. The clearance should be 80 mm. The fastener is installed in the deflections of the wave of the extreme number of stamping, the distance between them will be equal to one wave. With a cutting length of more than 130 mm, the upper part should be further strengthened.

Fastening of metal tiles around obstacles

Plank contiguity for metal should be installed around the pipe. It is attached to additional boards of the lathing, which allows to obtain a continuous coating. To begin with, the master marks the lines of the abutment of the lower bar, which should be placed above the metal tile by 15 cm. Using the bulgaria, you should make the shtrobu along the line. It will enter the lower bar. The very first is going to the lower part of the apron, then you can go to the side parts. The lower apron is decorated with sheets of covering material, whereas the upper parts of the apron are installed from above. The elements are connected by a method that is adopted when carrying out tin work. To increase the tightness, use a silicone sealant.

Installation of components: installation of snow-holder

Accessories for metal tiles are available for sale in a wide range. Among them you can find snow holders, the installation of which is carried out in several stages. In the holes formed in the mountings, you should install the pipe. The snow holder itself is fixed by screws to the crate in the lower part of the wave. And in order to ensure a tight fixing of snegozaderzhateley on metal, it is not necessary to organize a continuous crate. Places for fixing metal tiles with self-tapping screws have been disclosed above, but for successful completion of work it is important to know about the features of the installation of snegozaderzhateley, installation of which is carried out in several stages. The next step will be the installation of snow blower pipes, which can be arranged in a single row, while they are joined one into one. These elements should be located above the doors and windows, as well as at different levels of the multi-level roof system. If there is a sufficiently large length of the ramp, it may be necessary to install additional elements to hold the snow. Sometimes the tubular system of snow retention is improved by the method of installing a bar, which eliminates the drop of ice crumbs. This element is attached to the crate in the upper part of the wave.

Accessories and screws

Self-tapping roofing with a drill, the dimensions of which can be the most diverse, is presented for sale in a wide range. Its dimensions can vary from 4.8x16 to 6.3x150 mm. These elements have an end in the form of a drill, which for installation does not provide for the pre-formation of holes. With their help, the joints can be sealed. Installation is carried out to the metal skeletons of the roof. The thickness of the metal profile or sheet should not be more than 1.2 mm.

In addition to fasteners, you will have to purchase a semicircular or straight shank, as well as a narrow one, which will depend on your preferences, stub skate or right lath. You need a curtain rod, endowa, as well as a rake. You need to buy an abutment and a smooth sheet, the last of which is used for finishing parapets and pipes.