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Home Forums General Discussion Off-Grid Roofs Re: Off-Grid Roofs


I wouldn’t trust even distilled water from bituminous roofing, and what a waste of power! My rainwater catchment roof is non-toxic acrylic. Another kind is the Bermuda roof. Either “real” with flat tiles or the poured light weight concrete into forms. I definitely wouldn’t recommend anything that needs excessive filtration or tends to impart flavors.

One thing about metal roofs is that they are very slippery and can be dented walking on them to say, seasonally adjust a solar array. However, some glue on rolled solar panels are made specifically for them, and are the most wind resistant.

My non-catchment roof is regular asphalt shingles, but I may go light weight poured at some time in the future, or recycled aluminum shakes right over the shingles. Both suitable for catchment.