- Feb 6, 2012
- 2
I have a few rubber solar panels on my roof and after a few years they are starting to become gray and don't seem to be heating up the water like they used to. I was thinking that it might be a good idea to put something like this on it to get it nice and black again, but I notice that it says that it acts as a UV filter as well, which I am assuming will be a bad thing for getting the panels hot to warm up the water. What is recommended when the solar panels start to turn gray?