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Fixing solar panels on the roof

Fixing solar panels on the roof

Fixing solar panels on the roof: solutions formount and fix the photovoltaic system on the roof (flat, inclined, with tiles ...).

Incost of a photovoltaic systemit is also necessary to calculate the cost associated with the assembly and the systemfixing solar panels. The fixing system it differs according to the type of coverage. For example, in the case of flat roof with sheath, must be adopted photovoltaic fixing systems that do not damage the waterproofing layer of the roof. Another example is related to corrugated sheet roofwhere for thefixing the photovoltaic systeman ad hoc structural profile is used which differs according to the height of the fret.

Fixing solar panels on the roof

Each installer can make use of metal profiles produced by third parties: perhaps you have not thought about it but, generally, the company that produces solar panels (photovoltaic modules) is not the same that supplies the supports which, as specified, differ according to to the type ofroof.

The most modern fastening systems allow you tomount the photovoltaic system on the roof without drilling the sheath or any type of cover so as to eliminate the risk of infiltrations. This is true for both flat and pitched roofs.

Inroof in tiles, bent tiles, sheath or sheet metal, the system offixing solar panelsis generally fromsupport and can guarantee maximum wind resistance because it forms a dense anti-slip and anti-lifting net (in case of strong winds).

For thefixing of the solar panels on the double pitched roofwhat has been said previously applies: the system is supportive and it is not necessary to make any holes.

For thefixing solar panels on a flat roof, in fact, it is not only necessary to consider the anchoring of the system but also to ensure its maximum efficiency. For this reason, the fixing system will have to raise and give a correct inclination to thephotovoltaic modules. The supports, according to the needs of solar exposure, can give inclinations from 5 to 30 degrees. In case offlat roof, in the windiest locations it may be necessary to introduce ballast. The ballasts increase the weight of the entire structure and for this it is necessary to check the load capacity of the flat roof which will host thephotovoltaic system.

The fixing systems for solar panels also differ according to the materials: the best are in galvanized steel but there is no lack of support structures in aluminum alloys.

Photovoltaic system on sheath roof

It is true, I just told you that with a good fixing system it is not necessary to drill the sheathing roof and that the risk of infiltration is zero ... however, it is also important to estimate the state of the roof that will host the roof. plant. On many forums you read terrible experiences that they see associated with infiltration of rainwater to the photovoltaic system on the sheath roof.

It is important to remember that aroof with waterproofing sheathit is subject to wear and it is good practice to restore the sheath layer at regular intervals (redo the sheath every 10 years) and do it right next to the installation of the photovoltaic system. In addition, in this context there is no lack of waterproofing sheaths including the photovoltaic system (adhesive photovoltaic tapes) or, alternatively, it is possible to lay a corrugated sheet that will house the photovoltaic system.

Among the various waterproofing products on the market I point out the aluminum strips coated with thin film amorphous silicon photovoltaic cellsuseful for covering even the most lively or sinuous architectural forms (therefore useful in the case of curved roof, sloping roof or flat roof) without any structural constraints and with extreme freedom of fixing.

Fixing systems for solar panels on the roof

Another thing that is too often underestimated is thefixing system guarantee. As stated, who produces thesolar modulesit is not the same company that supplies the fixing system, so if your implant is covered by a 20-year warranty, it is not certain that the support system can guarantee the same longevity. It is important to inquire about the materials used by the installer, request the detailed technical data sheet of each component and material used.



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