Do I need a counter grill for metal tiles
Counter grill for metal tiles, as well as other types of coatings, is required for the roof, and represents simple wooden bars with a cross section of 3 * 5 cm. Installation is carried out on top of the waterproofing material, which is located under the metal tiles, along the rafters.
This is required in order to have a ventilated type gap between the roof and the waterproofing material. This approach helps to remove excess moisture that could penetrate under the roofing materials in the future.
In this case, when it is planned to build a complex roof, and it will have several slopes, and the rafter legs will be long enough, and bars with a thickness of about 5 cm should be used for the counter-lattice.
A counter batten for a metal tile roof is required when you plan to erect a warm roof. This is due to the fact that condensation may appear on the roof, which in the future will begin to contact with the tree, which begins to rot from a huge amount of moisture. Due to the presence of a control lathing, it is possible to ensure the presence of ventilation gaps.
Lathing and counter-lattice for metal tiles are used during installation work in order to create a ventilation gap between the roof, material for waterproofing, insulation and metal tiles. In the process of installing the battens for the lathing, they make a big step, which is why voids appear that are filled with air.
As practice has shown, the control lathing does not fully have a bearing load, although at the same time it can perform a number of other additional functions, among them it will highlight:
It is required to understand the fact that there will be a lack of simple boards for lathing for normal blowing of space under the roof, and even more so if a large step in the installation process is taken.In this case, when the roof slope is small, the step should be more often, as a result of this, there will be no free space between the sheets and the film.
Take into account the fact that metal tiles are an airtight material, as a result of which, during the operational process, condensation begins to accumulate between the final coating and the waterproofing, which gradually destroys everything. Due to the presence of lathing and counter-lathing, the required ventilation gap can be made.
Please note that metal shingles without counter battens can only be used if you are planning to build a roof with a cool attic. Since there will be no insulation in this case, the amount of condensation will be minimal.
The dimensions of the control strip for metal tiles must be known in advance, and because of this, installation work can be performed in short periods of time , and the finished result will exceed all expectations.
In order to make a control lathing on the roof, wooden bars are usually used, and their cross section is 3 * 5 cm.In the event that you plan to erect a broken roof or a roof with a complex configuration, the thickness of the counter battens for metal tiles can be increased to 5 * 5 cm. The maximum distance in each case can be 0.3 meters. The fixing is carried out to the rafter system, and for such purposes it is recommended to use screw nails made of galvanized steel.
If required, self-tapping screws can be used, but in this case it is worth giving preference to those materials that do not begin to rust during operation.
For proper installation, it is important to install a counter-beam for metal tiles, you need to understand the fact what is the step of the counter-lattice for metal tiles. In this case, the first step is to recognize the wavelength of the roofing material. Take into account the fact that the lathing step will largely depend on the selected roofing material and its brand. It turns out that if you are planning to buy a Monterrey profile, then the distance should be 0.
35 meters. It is recommended to calculate the step of the new lathing from the axial center to the middle of the board. In order to find out about the step between the starting and the second boards, you need to calculate the distance from the bottom edge of the starting board to the center of the new board. In this case, the distance will be 0.3 meters, and it should be understood that the new step with the use of the Monterrey profile will be increased to 0.
35 cm. This is due to the fact that it is important to make a protrusion at the roof by about 5 cm. in order to understand what step should be taken for the control lathing for metal tiles, you can consider the most popular options in the table. As you can see from the table, most of the existing types of profiles are reduced to several types of dimensions between the boards - 0.35 and 0.
4 meters.Such dimensions are relevant even if you plan to install modular metal tiles with fastening of hidden views.
Before starting to install a counter grill for metal tiles, it is recommended to familiarize yourself with all the subtleties and nuances of work in advance, and it will be optimal to focus on step-by-step execution works. As practice has shown, manufacturers often advise adhering to the installation instructions that are attached when buying metal tiles. This manual contains a complete description of the general installation process for roofing material.
If necessary, you can consider this on the example of how to install the battens for metal tiles from the most popular manufacturers. If you follow all the manufacturer's advice, then several boards should be installed in the cornice area. As a rule, on the first board, a beam should be nailed, the height of which would fully correspond to the main lathing on the roof.
In order for the fastening to be done as securely as possible, it is recommended to mount the support board slightly higher than the level of the usual crate. Ultimately, the height must necessarily correspond to the profile height of the metal tiles.
Certain manufacturers recommend that during installation take into account the fastening of the battens in the place of the valleys, elements and roof railing, which are designed to trap snow in the winter. In this case, the lathing must be continuous. Also, do not forget about the correct fastening of metal tiles, and for this it is optimal to use roofing screws. Likewise, installing metal shingles without a control batten and solid decking will be undesirable. It is important to pay special attention to the distance between the boards to be mounted.
When carrying out installation work on the installation of a control lathing for metal tiles, it is recommended to pre-process wooden structural elements with special compositions, due to which the roof and the individual nodes get an additional level of stability. When choosing the required antiseptic, it is optimal to take into account not just the type of wood, but also the climatic conditions in which the erected structure will be operated. Experienced craftsmen declare that for hot regions it is required to use compounds that protect the tree from fire, and for humid ones from excess moisture.
Among the main antiseptics, the following varieties can be distinguished:
The counter-lathing of the roof under the metal tile must be treated with preparations that penetrate deeply into the structure of the tree, thereby protecting the control lathing and material under the metal tile from putrefaction, the formation of fungal colonies, mold and insects. A brush is ideal for processing, and if possible, a spray can be used.
For fixing, special galvanized nails are usually used, and much less often they resort to using self-tapping screws.
A perfect solution would be the choice of brushed or screw nails. The length of the nail should be 7 cm. All boards at the intersection with the control lathing must be fixed in several places, more precisely, in the lower and upper parts. In this case, it is required to retreat 2 cm from the board edge.
In this case, when the usual length of the board is not enough (in this case, the length can be up to 6 meters), the joining of the boards must be done in the center of the bars ... If you know the dimensions of the boards, the width, distance and height of the roof, then you can quickly calculate the required amount of building materials needed to equip the roof for metal tiles. If you want to see exactly how the control lathing for metal tiles will look like, below is a photo.
The control lathing for metal tiles is an indispensable type of elements if you plan to make a warm roof. As practice has shown, you can do installation work with your own hands, without the involvement of masters such as roofers. In this case, you will need to follow the step-by-step instructions and take into account the recommendations from experienced craftsmen.
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