Install tip: Evaluate a roof’s structural support before designing solar

By SPW This installation tip was provided by Chris Fisher, product manager for CertainTeed Solar
When considering if a roof is suitable for solar, many people start with solar design considerations like roof orientation and shading. But a complete inspection of the roofing system and its structural support is especially important. While solar technicians are careful about installation practices, like flashing and sealing roof penetrations, roofing contractors can best recognize roof deficiencies. After a solar install, it’s difficult to access the roof and make repairs.
One should first find out the roof age, expected lifetime and warranty terms. There might be a product warranty

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