Originally Posted By: dlabrake
This post was automatically imported from our archived forum.
When inspecting a home with wood shingles and 2 layers of asphalt/composition shingles over that, is this a roof with 2 layers of roofing or 3. Some argue that in fact the wood shingles become the defacto sheathing component and there are only 2 layers of roofing material. As we all know, 3 layers of roofing is not allowed, so if we call it 3 layers, the roof has to be stripped, even though the current shingles may be brand new. Seems that both descriptions might work, but which one is accurate. Any roofers out there?