The drawback is that your roof's warranty is pretty much out the window and that you're going to have a very hard time replacing the shingles under the panels when needed. New construction around here have been installing roofs that won't last longer than 10 years or so.
That's not very long. Round here roofs tend to be made of slate, the same stuff that Wales is largely made of. Wales has been left outdoors in some truly appalling weather conditions for a lot more than 10 years and hasn't failed yet.
Sounds like you could save a lot of money on shingles by giving them a protective covering of solar panels.
Peter
Previous Topic
Index
