We can install solar panels on any kind of roof. Nevertheless, it is better to test the roof for several parameters to ensure that the roof is fit to withstand the solar installation load.
To determine the suitability of the roof for solar PV system installation, following factors are considered:
It might be a hurdle to get solar incentives in case you don’t own the roof you want to install the solar onto. However, you can explain the benefits a solar PV system may reap to your landlord.
The shading on roof would be a certain checkpoint to be marked to install solar PV system. The roofs surrounded by high buildings, trees or other objects that cast shadow on the roof throughout the day are not ideal for solar PV system. Partial or minor shading areas can be certainly addressed. The key thing to consider is that solar PV systems shall generate adequate electricity in the peak hours of the day, with ample sunlight and no shading conditions.
Solar panels last for 27-30 years. Thus, it is better to ensure that the age of roof is not very old and should not need any kind of maintenance in this span of time. In all, the roof should be fit to avoid any uninstallation and re-installation process.
It does not really matter what material your roof is, to install the solar PV system. All thanks to the continuous innovation in solar panels and its mounting equipment. As of now, the market has mounting equipment for rooftops like seam metal, clay tile, asphalt and rubber. However, it is not recommended to mount a PV system on lightweight materials like wood.
On average, 1 kW of solar system requires 100 sq. ft. of roof space. Solar panels come in fixed rectangular sizes. A house may require minimum 5-10 panels for sufficient generation. Thus, having adequate rooftop space is must. All the parameters like vents, chimney, dormers, etc. and the overall shape of the roof shall play considerable role in the rooftop space availability.
The roofs facing towards the south receive ample of sunlight and are preferable. For places in the southern hemisphere, the rooftop should be facing towards to north to receive ample sunlight. Thus, solar panels facing the North-south orientation are preferable. However, with technology, the east-west facing roofs can also have designed PV systems that can receive and generate enough sunlight and electricity respectively.
The solar panels are installedat a certain angle to withstand wind-load and snow-load and avoid the water and snow accumulation on it. On dormers, the angle can be modified to install the panels. However, steeper slopes require more time, energy and resources for installation and shall incur more cost for it. The flat roofs is not a problem, just that the tilting of panels requires more space and resources.
In all, if your owned roof experiences ample of sunlight without shading; has strong roof structure and sufficient roof space, all the other parameters can be worked out in parallel with the financial analysis.
However, you can take free technical consultation from PIXON to check this parameter by an expert for your solar decision. Reach out to the PIXON team and schedule your visit today.