Should a roofer remove all of the old felt before installing a new roof? The roofer said he can install new felt on top of the old and it will not void any warranty. If the roofer does not remove the old felt, will he be able to properly inspect for any wood damage?
I removing ALL of the old felt is purely aesthetical matter. It does not in any way reduce the preformance of a new roof. So in my opinion, it’s unnecessary. Most if it will come off anyway, when old shigles are removed.
