Can solar panels be installed on a flat roof?
Most houses have sloped roofs, but flat roofs aren’t uncommon, especially with Modernist designs. These tend to be more popular in milder climates that don’t need peaked roofs to deal with snow loads, such as California. If you’ve seen photos of solar panels on a typical house with a sloped roof, you may have noticed the racking system holding the panels in place. In the most common case where asphalt shingles are used, the racking is attached to the roof deck with bolts that are drilled through the shingles and attached to the deck underneath.