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I have never looked into a system. I am curoius, I assume you have to do some occasional cleaning on them. Few roofs will last 40 years. Is the system set up so they can be removed to replace a roof, or does one just do all the work of full installation all over with a new roof?
I would have to assume that in the year 2031 the technology of the new cells would make your 20 year old cells from 2011 not worth reinstalling after a roof replacement.
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Glen
49 Year member of the Porsche Club of America
1985 911 Carrera; 2017 Macan
1986 El Camino with Fuel Injected 350 Crate Engine
My Motto: I will never be too old to have a happy childhood!
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