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When it comes to installing photovoltaic systems, safety needs to come first in everything, whether in planning or in commissioning – essential actions to ensure the longevity of the plant.
Among the measures considered fundamental is, for example, preparation before climbing onto the roof, ensuring ideal and precise fixation when implementing the solar panels.
To highlight the main points in a project and give tips on installing photovoltaic systems on roofs, the Sola Channelr spoke with engineer Augusto César Polinário, commercial analyst at Solar Group.
Polinário highlighted that the first step is to carry out an analysis to check the physical condition of the roof, as well as having validation from a professional responsible for the area. “The roof must withstand at least an overload equivalent to the weights of the modules, fixing structure, equipment and installers. Around 30 to 40 kg/m²”, he explained.
Read more: Does the age of the roof influence the installation of a PV system?
Another point he highlighted is how the fixing structures will be assembled and fixed. “Normally, they are fixed to the roof structure, so it must be suitable for these implementations, guaranteeing the estimated time of 25 years that the system will be installed”.
“And how will the structures and equipment be taken to the roof? Generally, installers have special ladders that make it easier to climb the panel and equipment”, he pointed out.
Do manufacturers provide technical and after-sales support?
According to the expert, Solar Group, for example, provides technical support, in which all salespeople are engineers, and can assist in choosing the solution and installation. “And we have a specific after-sales department to deal with any incidents.”
“We make assistance quick and easy for customers. The warranty today is 12 years with an estimated useful life of 25 years”, he concluded.
Structural reinforcement for photovoltaic projects
When we add solar panels and their fixing structures to roofs, in this case, we may be adding overhead and efforts for which they are not prepared.
Amid this scenario, what should be the biggest points of concern for installers and integrators of photovoltaic systems?
Reinaldo Burcon, industrial development engineer at Romagnole, commented that for structures parallel to the roof, with a small distance from the tiles, in most cases there are no additional aerodynamic efforts, just the weight of the structure itself. Click here and find out more.
