Quote:
Originally Posted by NH.Solar
If the roof is over ten years old we generally advise our clients to consider replacing it before installing an array. There are a lot of variables however that can change this the main two being the pitch and the quality level of the original shingles. The roof may look fine but over time the UV rays of the sun will bake the oils out of shingles and they become brittle. Walking on them while installing an array can cause fractures or breakage and could result in a leak. Often a client can get away with just doing the south plane under the array because that is the one that will have seen the most direct sun. Once the array has been installed the shingles below will never age because they are now shaded from the direct UV rays by the panels. An additional benefit that comes from changing out the shingles before an solar installation is that the cost of re-roofing the plane under the solar array can be added to the cost of the installation and becomes subject to the 26% Federal ITC.
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What about solar shingles? Similar to this...
https://www.solarreviews.com/blog/wh...solar-shingles
What’s your thoughts on these?
Dan