Quote:
Originally Posted by BrianL99
Generally, it's ok to roof over an existing roof of one layer of shingles.
That said, it's far less common in Florida, than most other states. I'm not a roofer, but from what I understand, it's nearly impossible to meet FL roofing regulations without removing the existing roof (unless it's only a couple of years old).
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In cooler climates a roof over is commonly done. In hot sunny climates older shingles often buckle and curl up and it’s not advisable to put new shingles over them. As previously mentioned, you don’t want to give your homeowners insurance carrier a reason to cancel your policy.