In many respects, a metal tile is better than other roofing coatings in the type of galvanized sheet, slate or bitumen tile. Laying this material is usually trusted by specialists, but if you have a desire, then you can do the installation work yourself.
Settlement
Before starting work, the master should understand a rather important point. Externally, a metal roof looks like a lot of rows that run across a ramp. The distance between the rows is called the step. If the tile sheet has a step equal to 35 cm and 6 waves, then it is called a module. In the modern market of building materials, webs are available that have a maximum of 10 modules. The minimum value is one.
If you wish, you can order a tile, guided by individual sizes. However, such material will cost much more. The length of the sheet should not be more than 7 m, and the minimum value is 45 cm. You can install the metal tiles yourself (the instructions you have to study) you can do it yourself. Having familiarized yourself with it, you will be able to understand that when calculating it is necessary to take into account that the waves and joints form a solid canvas along the length of the ramp. If you determine the number of modules, you can calculate the amount of material that should be purchased.
The kit usually comes in steel two-meter strips, as well as steel sheets, the color of which is identical to the color of the metal tile. Planks are used for those roofs that have a slope of 30 °. However, if desired, it is possible to perform a slope adjustment in the range from 11 to 70 °. When making calculations, it is important to consider not the full, but the working, that is, the useful width of the material. In the first case, the value is 1180 mm, while in the second - 1100 mm.
To begin with, you should measure the length of the horizontal slope. The calculation must be carried out on the ridge or cornice. This value is divided by the working width of the sheet, which was mentioned above. The result is rounded up, this will allow you to get the number of rows taking into account overlap. In general, it is possible to determine the area of the covered surface, and then the useful area of one sheet. The first value is divided into the second, which allows you to get the number of sheets that you have to purchase.
Making a roofing cake
The metal roofing system provides for a vapor barrier. It is laid inside the rafters from the side of the house. To do this, you can use the brackets of the construction stapler. This will prevent steam from entering the insulation. Otherwise, the process of decay may begin.
The technology of laying the metal tile provides for the location of the insulation on top of the rafter system. Mineral wool is great for this. For waterproofing, you can use diffusion membranes, anti-condensation films or classic waterproofing. This ends the preparation.
Crate Installation
The roof lathing is necessary in order to provide a ventilation gap between the sheet of metal and the film. Otherwise, in the place where the metal will adjoin the film, the layer will quickly lose its properties.
For the roof lathing, it is necessary to use a rail, the length and cross section of which are 135 cm and 30 mm, respectively. If you decide to use superdiffusion membranes with a transmission capacity, then a counter-lattice is not needed.
Preparation of tools and materials
The order of installation of metal provides for compliance with the rules. At the first stage, it is necessary to prepare tools and materials, among them:
- scissors for metal;
- electric drill / driver;
- measuring device;
- marker;
- ladder;
- long rail;
- mounting tape;
- hammer;
- personal protective equipment;
- waterproofing;
- roofing strips;
- levels for the ridge and butt;
- self-tapping screws;
- guide board;
- roof tile;
- aero roller;
- decorative overlays;
- boards.
As for the latter, their size should be 2.5x10 cm.
Foundation preparation
Due to the fact that the metal tile has a small weight, it does not need a reinforced base, so an ordinary wooden crate of battens will be required. The distance between them is determined by the size of the tiles, so as not to drive the screws into the void during installation. When determining the step, the location of the windows should also be taken into account, because there should not be rafters above them.
Thermal insulation
The rules for installing metal tiles necessarily include the use of a heat-insulating layer. This stage is required not only to eliminate heat loss, but also to protect against noise during rain. Rafters are covered with vapor barrier material, it can be Izospan or Yutafol. The next step will be the laying of the insulation layer, then you should cover the antioxidant film and fix it to the rafters with wooden blocks. The material between them should sag a little, so that condensate drains into the drain.
Installation of metal
You can perform the installation of metal roofing and materials calculation yourself. All instructions for this are presented in the article. Installation of paintings can be carried out in one of two ways. If you will work, starting from the right, then each new sheet will fit into the previous one. In order for the installation to be correct, four sheets are first caught and aligned, and then you can connect with a self-tapping screw. This fastener must be of good quality, because the life of the coating depends on it.
Screws must be galvanized with propylene rubber sealing heads. This will close the holes when tightening. In the place where the four sheets join, a thickening will form. It is necessary to get rid of it by cutting off a part of the corner or by straightening the capillary groove, which is located under the stamping line.
Setting individual items
Installation of the end plates is carried out with an overlap within 2 cm. It is necessary to adjust the wave size to the width of the ramp, otherwise the crest may appear on the pediment. The system should be supplemented with a roofing strip, and between it and the sheet material, an additional sealing layer should be placed.
When windows or pipes located below the ridge are arranged, it is necessary to take sheets with one module. For each structural element, two such nodes are required. A step-by-step installation instruction for metal tiles for dummies involves the installation of aeration for sloping slopes. This element should be located between the ridge and the material. This will exclude penetration under the ridge of precipitation. The last node is installed on the slats that are located at the ends of the structure. This is done so that the skate protrudes 3 cm.
Mounting the ridge on a metal tile will require compliance with some nuances if this part of the system is flat. In this case, all elements are fixed with an overlap. Whereas if the ridge is semicircular, then it is necessary to follow the profile lines. When the roof slope exceeds 45 °, the compatibility of a specific model of the ridge must be checked in advance. It should fit at an angle. If this is not done, then the consequences can be dire, sometimes you even have to replace the roofing. You can bend and unbend the planks of the skates, if necessary, so that they repeat the angle of the roof.
Endova arrangement
Each endow requires an additional board. Installation starts from the bottom and is carried out with an overlap within 30 cm. The lower bar is cut at the level of the cornice, flanging should be carried out on it. Under the skate and flanging, it is necessary to lay a sealant.
Between the sheets and the axis will remain a 10-cm gap. Having retreated 1.5 cm from the stamping line, it is necessary to tighten the screws. If you did everything correctly, then after completing the work you can make sure that in the place of the fastener the sheet is in contact with the board where the valley is located. If you made mistakes, then the fastenings will be in other places, and the consequence will be that gaps are formed on the surface through which the roof will leak.
In order to cover the trimmed sheets during the installation of the metal tile, the step-by-step instruction of which is presented in the article, it is necessary to stock up with decorative overlays. Between them and the tiles do not need to lay a seal. Products must be mounted with a 10 cm overlap. It is important to eliminate damage to the endova by self-tapping screws, which are used to fix the pads.
Quite often, the end and the beginning of the valley are located on the roof slope. If you take the installation of the dormer window as an example, then you need to put a separate board under the endow. For a window, a cutout should be made in the sheet, while sealing material is located along the walls. At the same time, the bar can cover the eaves overhang. Then the valleys are set, which are trimmed around the edges. The left part will fit snugly against the sheet of tile.
Installation of snow retainers
Depending on the design features of snow retainers, several technologies for their installation are currently known. In this case, it is important to take into account the estimated power load, the type of roof and the location of structures on the surface.
Installation of snow retainers on a metal tile, the instruction of which is presented in the article, provides for the determination of the number of profiles. In the future, they will be fixed on the system brackets. The number of profiles is determined taking into account the geometry of the roof. For areas where snow accumulation is expected, glass holders should be installed in two levels. With an impressive roof area, the number of rows of the structure increases.
The placement of snow retainers is planned at the design stage of the coating, in the locations of these nodes it is necessary to strengthen the crate with the help of additional support boards. The technology of laying metal tiles involves the installation of snow retainers, which are fixed with the help of long self-tapping screws fixed to the crate. Fasteners must pass through the roofing.
When determining the number of fasteners, the angle of inclination of the roof, the design of the lathing and the length of the slope should be taken into account. The sealing of the holes for the snow retainers must be carried out without fail, it is necessary to use rubber gaskets for this. Two seals are installed under the bottom mount. The distance between the fasteners should be equal to the limit of 0.5 to 1 m. A profile with an oval section or a pipe is inserted into the brackets. Elements are interconnected through bolts.
Tiles for laying metal
On top of the waterproofing layer, another crate is made, then you can proceed to laying sheets. After mounting the first row, it must be aligned on the ledge. With the help of a roofing screw, the canvas is fixed in the center. The laying of the second sheet is carried out with an overlap on the first.
At the next stage of installation of metal (step-by-step instructions are presented in the article and should be studied by you), you can already fasten the sheets with self-tapping screws thoroughly. After this, the metal tile is attached to the crate, but the last sheet acts as an exception, which needs to be fixed only after laying the second row.
If you want to do installation in several rows, then you need to work from right to left. The first three canvases are laid according to the scheme described above. Self-tapping screws do not need to be screwed to failure so that you have the opportunity to align the sheets. The fourth canvas lies above the third, this will close the entire ramp.
After you lay out all the sheets, you can screw in the screws until they stop. Installation of a metal tile, the step-by-step instruction of which will be interesting to you if you plan to carry out the work yourself, involves installing the ridge last, because the sheets are stacked from top to bottom. All subsequent rows should be slipped under the previous ones. It is important to choose self-tapping screws, the color of which will match the color of the material. It must be remembered that the metal tile is strong, but light enough, so it can be demolished by a gust of wind. It does not matter where the material is located - on the roof or on the ground.
How to avoid mistakes
The step-by-step installation instructions for the metal tile must be followed by you. It provides for the observance of certain rules, among which a ban on working in shoes with solid soles, as well as on the impact on the crest of the wave, should be highlighted. It is forbidden to step on the canvas with a complete stop. Masters need to remember that putting a foot perpendicular to the slope is not worth it. Do not take material with your bare hands.
Conclusion
Quite often, owners of suburban real estate and houses within the city entrust specialists with installing roofing material. If you also decide to follow their example, then you should be interested in the cost of the work. Installation of metal tiles costs 380 rubles. per square meter. However, it is necessary to add the price of some other services to these works, for example, the installation of component parts. They cost consumers 250 rubles. per linear meter. The filing of the cornice is 450 rubles each. per linear meter.
However, this list cannot be called complete. It will also be necessary to install layers of heat and waterproofing, without which the roof will leak, and the materials at its base will be saturated with moisture.