Would you recommend installing an asphalt roof over two existing layers of shingles?

Answer: Never
Explanation: LEARN MORE: https://4squareroofing.org

Answer: Never
Explanation: As stated in the previous answer, installing an additional layer of shingles comes down to cost and convenience. But putting new roofing over the existing structure is a “pay me now or pay me later” scenario. You will save on costs in the short term, but you will eventually need to pay for the full cost of a new roof at some point. Roofing over two existing layers adds more weight, your roof is likely graded for a very specific amount of weight. This is factoring in the shingles and potential snow that could also accumulate. When you add extra materials over the top, you only add weight to the existing structure. Without that tear-off process, roofers cannot see what the decking underneath looks like. Our team will perform a careful inspection, known as a “walking” inspection, to look for spongy and problem areas. This allows them to make localized repairs before the re-roofing process. When you hire a less-than-reputable roofer to do the job, they might not bother with this portion of the process. This leaves your roof susceptible to any damaged areas, which could permeate through the new layer of roofing shingles.

Answer: Never
Explanation: Not allowed by the Building Code

Answer: Never
Explanation: Code does not allow more than two layers.

Answer: Never
Explanation: two layers is the max so if you have too roofs already and want a new roof you must tear off and go from there

Answer: Yes
Explanation: Yes okay