To put it simply, cost. Not sure if it's a state or federal issue but if we were to remove the asbestos based shingles, they have to be triple bagged, special suits need to be worn, we would be responsbile if anything were to happen (eg, shingle shattered by accident and the asbestos were to be...
We got a few quotes to get vinyl siding placed over our existing asbestos-based shingles. All but one said we would need the siding with the foam all ready attached to it. The one who didn't says it's not needed since we are putting it over the existing asbestos-based shingles which is a good...