In many respects, metal roofing is superior to other roofing materials such as galvanized sheet, slate and bituminous tiles. Usually, the laying of the material is trusted by specialists, but you can install it yourself.
Metal tile has many advantages. First, it is necessary to highlight the insignificant weight, which reaches 6 kg per square meter. Secondly, you will be able to take advantage of the choice of colors that are offered by manufacturers in a wide range. Thirdly, the metal tile is maintainable and easy to install. The material does not contain harmful components, it is characterized by high strength and resistance to temperatures. Thermal expansion is minimal.
As for high strength, it is achieved by stiffening ribs. If the sheets are correctly installed, they will be able to withstand a load of more than 200 kg/m2. This applies to canvases whose thickness is 0.5 mm. Like any other material, the described one has its drawbacks. One of them is expressed in increasednoise under mechanical influences. However, this problem is easily solved by installing a layer of glass wool.
Preparation for work
Before you cover the roof with metal tiles, you will need to take care of the following tools:
- metal shears;
- electric drill;
- screwdriver;
- measuring instruments;
- marker;
- ladders;
- long ruler;
- mounting tape;
- hammer;
- personal protective equipment.
You will also need materials, namely:
- waterproofing;
- roofing strips;
- end strips;
- self-tapping screws;
- guides;
- board;
- tile;
- airroller;
- decorative overlays;
- boards.
In addition to self-tapping screws, washers and seals should be prepared for them. As for the boards, their cross section should be 2.5 × 10 cm.
Working on the base
If you are faced with the question of how to cover the roof with metal tiles, then you should familiarize yourself with all the stages of work. One of the first is the preparation of the foundation. The metal tile has a slight weight, so it should not be laid on a reinforced surface. The work involves the installation of a conventional wooden crate.
The distance between the rails is determined by the size of the sheets, so that during installation you have the opportunitydrive the screws into the rails. When calculating the step, the location of the windows should also be taken into account. There should be no rafters above them.
Performing thermal insulation
In order to exclude heat loss and noise of the covering material, thermal insulation should be used. For this, the rafters are covered with a vapor barrier material, for example, Yutafol or Izospan. The next layer will be insulation. Its thickness should be 25 cm or less.
The layer is covered with an antioxidant film and fixed to the rafters with wooden bars. Between them, the material should sag a little. This will allow condensation to drain into the drain.
Features of laying roofing cake
Covering a roof with a metal tile is a complex event that includes the installation of a roofing pie. It provides for the presence of a vapor barrier, which is a special film. It is fixed inside the rafters, from the side of the house. You can use a stapler for this. This measure eliminates the contact of steam with the insulation. Otherwise, the process of decay will begin in the thermal insulation layer.
Insulation goes on top of the truss system. They can be mineral wool. For waterproofing, the classic version, anti-condensation film or diffusion membrane is suitable.
Basic rules for installing tiles
If you do not plan to lay the covering material yourself, then you can use the services of third-party organizations or individuals,specialized in this type of work. Usually one square meter of area costs 1,500 rubles, on the basis of which it is possible to determine the cost of the roof. To do this, the surface area must be multiplied by the price of one square meter.
If you plan to install the material yourself, you should familiarize yourself with the technology. Its first stage involves the installation of the sheet in one of two ways. If you plan to start on the right, then the new canvas will be superimposed on the previous one. Correct installation involves laying 4 sheets with an overlap.
Cloths are tacked, aligned, and then connected with one self-tapping screw. Fasteners must be of high quality, because the life of the coating depends on it. The screws must be galvanized and usually have propylene rubber sealing heads. This will ensure that the holes are filled with maximum tightness when screwing in.
In the place where the four sheets will be connected, a thickening will appear. It is removed, for which part of the corner is cut off. You can use an alternative solution by straightening the capillary groove that is under the stamping line.
Tips for installing metal tiles
Before laying the first sheet of metal for the roof, you must make another crate, which will be located on top of the waterproofing layer. The first row is aligned with the eaves. Fastening is carried out in the center. It is not worth screwing the self-tapping screw to the end, because itwill have to be removed later. The second blade is overlapped.
After that, the sheets are fastened together thoroughly. This will form a whole series. With the exception of the last sheet, all previous ones are attached to the crate. The last sheet is fixed only after the second row is laid.
We cut the roof with a metal tile so that in the second row the canvas can be aligned horizontally. To do this, at first you should not fasten them too tightly. Once all the sheets have been laid, the roofing screws can be screwed in as far as they will go. The installation of the ridge is carried out last. Self-tapping screw heads must match the color scheme of the material and have a rubber gasket to ensure waterproofing.
The installation of a metal roof must be accompanied by safety measures. You have to remember that the material is light, so it can be blown away by the wind. This applies not only to those paintings that are on the roof, but also on the ground. Workers must not wear hard-soled shoes. It is important to exclude the impact on the crest of the wave during installation.
Stepping on the sheets with a full foot is not worth it. When moving on a metal tile, it is not recommended to put your foot perpendicular to the slope. When laying a roof from a metal tile with your own hands, it is necessary to use gloves for protection.
Installation of additional elements
You can do the work of covering the roof with metal tiles yourself. This will save money andalong the way to master a new type of activity. If you are among those masters who plan to do it on their own, then you should know that the end strips are attached with an overlap, the width of which is 2 cm. It is necessary to adjust the size of the wave to the width of the slope. Otherwise, the comb may end up on the gable.
Next, you need to add a roofing strip, and place an additional layer of sealant between it and the material web. When arranging windows or pipes located below the ridge, it is necessary to use sheets with one module. For each element, you will need 2 pieces.
When a house has a sloping roof, an aero roller is installed between the ridge bar and the material. It prevents the penetration of precipitation under the ridge. The latter is mounted on the slats, which are located at the ends of the structure. This must be done in such a way as to provide a protrusion of 3 cm.
If the skate is flat, then all elements are overlapped. In the case of a semicircular shape, fixation must be carried out along the profile lines. If you decide to arrange a roof made of metal, you must take into account the angle of inclination. When it exceeds 45˚, the compatibility of the ridge model with the angle must be calculated individually. Without doing this, you may run into trouble, up to the need to replace the roofing. The ridge bars can be bent and unbent as needed to match the angle of the roof.
Arrangement of the valley
When a metal roof is installed, each valley requires an additionalboard. The installation is carried out from below and an overlap of up to 30 cm is provided. The lower bar is cut off below the eaves line, flanging is carried out at this mark. A sealant is placed under it and the skate. There should be a gap of 10 cm or less between the blades and the axle.
Departing from the stamping line about 1.5 cm, screws should be screwed into the sheets. Fasteners should also be carried out 25 cm from the axis of the valley. If everything is done correctly, then the sheet in together with the fasteners should be in contact with the board. In case of errors, the fastening turns out to be in other places, and gaps form on the surface, which subsequently become places of leakage.
In order to cover the cut sheets, decorative overlays should be used. When installing them, you need to remember some important points. For example, installation should start from the bottom, moving up. There is no need to lay a sealant between the lining and the tiles. You will also need to provide a 10 cm overlap.
To fix the overlays, self-tapping screws are used, which should not damage the valley. Usually the beginning and end of the latter is located on the slope. If we are talking about installing a dormer window, then a separate board must be laid under the valley. For a window, a cutout is made in the canvas, and a sealing material is located along the walls. The cornice overhang is covered with a plank. Now you can fix the valley planks, which are pre-cut along the edges. Parts that extend beyond the limits must adhere tightly to the tile sheet.
Working with slopes of a triangular or trapezoidal shape
A metal roof can have trapezoidal or triangular slopes. When working on them, additional bars are required. They should be located on both sides of the ridge, that is, along the fold line of the roof. Next, you can proceed to the installation of the cornice board and work on the crate. Then a cornice system is built.
Laying tiles is carried out along the line of one of the edges. The first sheet should be aligned with the eaves plank. Distances of more than 10 cm should be maintained between the cut corner canvases. When installing the ridge knots, the slats are aligned with the corner of the ridge.
When a straight skate is used, it is cut at the corners. If we are talking about a semicircular ridge, then an additional plug is required. It is desirable that it be plastic. The metal tile roof will have a ridge strip, which is laid along the axis of the ridge. This is easy to do if the angles of the slopes are identical. If they are different, then the work will be somewhat more difficult. In order to control the junction of the slopes, it is necessary to use a mounting tape of a bright color.
Laying the truss system
The roof tile sheet will sag if the correct distance between the rafters is not maintained. It is 90 cm or less. It is necessary to use only dry bars in work, which are pre-impregnated with an antiseptic. In order for the rafter system to be rigid, it is necessary to additionally fix the eaves board or frontal board. The latter is attached toend of the system.
Soffits or lining are used for filing roof overhangs. When there are no ventilation holes in the skin, they are made independently. In this case, a drill and a drill can help you. If the sheathing is made of wood, then it is treated with an antifungal compound, and then painted with varnish. As soon as the rafters are laid, you can proceed with the installation of steam and heat insulation, as well as a layer of waterproofing, all this is called a "pie".
Roof material dimensions
The covering material described in the article outwardly imitates the generally accepted classical coating, which is called tile. It is based on rolled steel, and in the production process special equipment is used to form a profile. There is a metal roof tile on the market, the size of the sheets of which may vary depending on the manufacturer. When purchasing products from the Metalloprofil plant, you will work with sheets whose total length varies from 500 to 3650 mm. The overlap in length is 150 mm. Usable length is equal to the limit from 350 to 3500 mm.
Installers have concepts such as full width, length overlap and usable width. For the metal tile of the manufacturer mentioned above, these parameters are 1190, 90 and 1100 mm, respectively. By purchasing products of the Grand line company, you become the owner of a covering material, the total length of which can be equal in figure from 480 to 3,630 mm. The overlap in length in this case is less and is 130 mm. The useful length remains the same as in the case of Metalloprofil. This can't besay about the full width and overlap in width, which are equal to 1,180 and 80 mm, respectively. Usable width remains the same.
Settlements
All masters who have not previously encountered the laying of covering material are wondering how to determine how many sheets will be needed for the roof. First of all, you must decide what size metal tile is right for you. Standard options are: single-module, three-module, six-module, ten-module.
One module consists of six waves, the distance between which is 35 cm. In order to calculate how many rows the roof will have, taking into account the size of the sheets, the length of the slope must be divided by the working width of the sheet. The result should be rounded up. The working width is the part of the web that is not covered by the next sheet during installation. To determine this parameter, the overlap must be subtracted from the total width, which is approximately 8 cm.
In order to calculate the metal tile on the roof, you can consider an example in which the roof slope will be 7 m, while the working width will be 1.2 m. The first digit must be divided by the second, which will allow you to get 5.83 It should be rounded up to 6. This suggests that one slope will have 6 rows. This will determine the number of rows for each ramp.
You will also need to calculate the length of the row, for this the distance from the cornice to the ridge must be added to the length of the cornice overhang. The number of rows is added to the result obtained, which previously followsmultiply by 0.15 cm, which is equal to the overlap.
Working on a triangular slope
If your house has a complex roof structure, then this should not stop you. This is due to the fact that profiled sheets can be used for roofs of any configuration. But for a competent device of a tent or hip roof, one should act according to a different technology. The roof under the metal tile, if it has a triangular shape in the slope area, must be pre-prepared. To do this, find the central point of the overhang and draw an axis.
Similar actions are done with the first sheet. The axes of the sheet and the ramp are in fact aligned. In this case, horizontal and vertical should be verified. At the same time, the sheet is fastened with a self-tapping screw at a central point at the top edge. When the roof of a metal tile house is mounted, the sheets are installed to the left and right of the central covering element. In this case, it is necessary to act according to the traditional method. Once the sheets are in place, the excess should be cut off.
Cutting and placing the material will be more convenient if you use a homemade devil. It can be built from four boards, the width of which is 10 cm. The elements must be arranged in parallel pairs and connected to each other in a hinged way. As soon as the metal roof, the photo of which you can see in the article, has been completed, you can proceed to the installation of passage elements around communications, pipes and antennas. The components of the roofing cake in the intersection areas should be sealed with adhesive tape. The seams are being filledsealant.
Final information
Roofing a roof with a metal tile can be accompanied by some difficulties. But if you strictly follow all the subtleties of the technology, then you won’t have to change the coating a few years after the completion of the work.
