Can Solar Panels Be Installed on a Commercial Flat Roof?
Yes, solar panels can often be installed on a commercial flat roof, but the roof structure must be assessed carefully before installation.
There are two main methods of installation. Ballasted systems use carefully calculated weights to secure the solar panels without penetrating the roof membrane, while mechanically fixed systems are secured directly to the roof structure using specialist weatherproof fixings.
A Ballasted Flat Roof Solar PV Mounting System
A Mechanically Fixed Flat Roof Solar PV Mounting System
A common misconception is that if a person can walk safely on a flat roof, it must be strong enough for solar panels. In reality, a person’s weight is temporary and moves around the roof, whereas a solar array creates a permanent load that remains in place for decades. Commercial flat roof installations must also be designed to withstand wind uplift forces. Professional assessment and design help determine the most appropriate fixing method and ensure the system remains safe and secure throughout its service life.
If you are considering solar panels for a commercial flat roof, Stag Solar can assess the roof construction and advise on the most suitable mounting system for your building.
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