My question is, living in central Minnesota, which is the better choice of shingles; fiberglass mat or organic mat?
I've spoken to several local roofers and have received about a 40/40/20 response. The 20% not knowing there is more than one type of shingle construction (beyond appearance).
Most of those saying organic mat said they don't trust fiberglass shinges.
Most of those saying fiberglass said it because that is all they have ever used and is a more modern technology.
Guess I'm looking for more of a scientific or "have done it both ways and why" explaination to help me choose one over another.
Thanks in advance!