The North Carolina State Building Code does allow up to two layers of shingles on your roof, however, Skyview Roofing will politely decline to do that service.
Multiple layers of shingles on your roof are more prone to leaking and they add unnecessary, additional heat retention as well as extra weight to your roof deck. The shingle manufacturer will not warranty that type of roof installation, nor would we be able to provide you with a workmanship warranty on your roof.
