How to cover the roof with a metal tile: step-by-step

01-06-2018

Useful

Metal tiles are sheets of steel, copper or aluminum, profiled using cold pressure. The shape of the profile resembles ceramic tiles. This material is pleasant in appearance, affordable and durable. Understanding how to cover the roof with a metal tile is not difficult, and if you refuse the services of the builders, you can save a lot.

Features of the use of metal

The angle of the roof slope is set to at least 14 degrees.
Noise during precipitation requires additional sound insulation.
Metal roofing with a polymer coating withstands aggressive environments and temperature changes, but the cut points require thorough staining.
When cutting the material for a complex roof there are a lot of scrap.
To cut the sheets can not use the grinder, as the high temperature spoils the coating.

Material characteristics

In order not to be mistaken with the choice of material, it is worth knowing its main characteristics.

The height of the wave and the thickness of the steel affect the rigidity of the metal tile, high performance (50? 70 mm) will provide reliable roofing, but the cost of such a sheet will be more expensive.
Profile type - symmetrical, asymmetrical, less commonly trapezoid.
A type of protective coating that provides anti-corrosion protection: zinc, aluminum zinc, iron zinc, etc. Reliable protection against corrosion is provided by a significant layer of zinc, to reduce its thickness, alloying additives are used.
A decorative layer of polymer creates a spectacular appearance and increases resistance to corrosion.

Polyester is an inexpensive universal coating, matte or glossy. Flexible and weather resistant material is afraid of mechanical damage.

Plastisol is a thick embossed PVC layer up to 200 microns. It has good wear resistance, resistant to mechanical stress and corrosion. Its disadvantage is damage when heated. The material is not recommended for use in hot regions.

Pural - with an average thickness of 50 microns provides resistance to thermal shock, corrosion, and exposure to aggressive media. When installing sheets with such a coating, care should be taken that it is subject to plastic deformation.

PVDF is a compound made of acrylic and polyvinyl fluoride, with a thickness of 27 μm, it has a high resistance to damage, the longest use, and resistance to fading.

The choice of color for the metal is quite extensive. Among the popular colors, shades that are used in the manufacture of natural tiles: graphite, terracotta, green moss, oxide red. By choosing the color of the roof should be approached responsibly, it has a significant impact on the overall architecture of the house.

Tips

Metal tile manufacturers post detailed instructions. Caring for the future of the roof start with the correct placement of the profiled sheets, they should be put on pallets. Move on the finished metal need soft shoes. It is necessary to step on the concave part of the wave. The chips are removed from the surface of the sheet with a soft brush, taking care not to damage the coating.

Tools for work

scissors for metal;
marker and tape measure;
screwdriver;
hammer;
rake rule

Warming and waterproofing of the roof

Waterproofing is necessary to protect the inside of the roofing sheets from condensation and to create a barrier against possible leakage. The vapor barrier film is laid with the overhang of the first row on the side of the eave 20 mm, between the rafters left sagging up to 20 mm. All rows are joined with an overlap of 15 cm and glued with tape. The film is fixed with a stapler or nails. For insulation of the roof, especially if the attic is used, there is insulation between the rafters: basalt mats or mineral wool.

It is possible to protect the insulation and the wooden structure with the help of a waterproofing material that is attached to the outer part of the rafters, and a vapor barrier film laid on the inside. Between the film and insulation, as well as between the film and the metal is left a gap for ventilation. So that moisture is removed from the inside of the roof, gaps are made on the overhangs and ridges.

Mounting the frame

Coniferous wood is preferable for the manufacture of the frame. It should be well dried and treated with an antiseptic to prevent decay. The crate will be the carrier base for metal sheets, for it use a bar size of 50? 50 mm or a board of 100? 25 mm. The first board nailed at the eaves is chosen to be 1.5 cm thicker than the others, the second one is taken ordinary, but is fastened closer by 5 cm than the next step of the batten. The remaining boards are attached to the rafters at a distance equal to the transverse profile of the tile: 30 cm, 40 cm, 45 cm. Galvanized nails are used for fixation. At the ridge and in the valley to strengthen the design is performed continuous obreshetka. The end plate is nailed above the general level to the height of the metal tile wave.

Before installing the tile, the slope geometry is checked, the size of the diagonals is measured and compared. If performed correctly, it should be the same.

Laying metal tiles

Work on the installation of metal tiles begins with fixing on the first thick board of the cornice strip, it is assembled with an overlap of 10 cm. When a gable roof is being installed, the installation of the tile starts from the end. If a hip roof option is selected, the installation starts from the top point and is carried out in two directions. The removal of the metal sheet along the cornice is 40 mm, its upper part is temporarily fixed to one screw.

The installation of the next sheet is overlapped on the first sheet when the material is laid down from right to left; if the work starts from the other side, then the sheet is wound up under the previous wave. Two adjacent sheets are interconnected, but not attached to the crate so that they can be aligned if necessary.

The third sheet metal is mounted by analogy with the second. All bonded sheets are aligned along the line parallel to the roof eaves. After fitting the tile is firmly fixed with screws. The lower part is fixed in each deflection profile. Sheet joints are fixed through the wave. If the roof slope has a length of more than six meters, it is more convenient to install from cut sheets, laying them with overlap.

In the valley on a continuous crate, a bent steel sheet 120 cm wide is fixed. In this place, the sheets of metal tile are cut at an angle, and then closed with a decorative element that is fastened with screws to the upper part of the wave at a distance of 30 cm. .

The end plate must be fixed on the end board with an overlap of 7 × 10 cm. To ensure a tight connection of the metal tile to the chimney pipe, walls or dormer windows, a steel sheet is used, the upper bar of which is adjacent to the structure. Place the junction of the wall and the metal strips smear sealant. To prevent dangerous snow from the roof will help snow-guard securely mounted on the roof.

To create air vents, the upper edges do not fit flush. The ridge of the roof is fastened with screws of 80 mm in length through a single wave of tile. Under it is placed a special seal that protects against birds and snow.

The order of the work is available in the video. Working according to the technology of laying metal, you can independently assemble a reliable protection for your home.