DIYbanter - View Single Post - What's a "tear-off" roof?

lid wrote:

Never heard of it. Did a google search, but all hits seem to be saying
that a tear-off roof is little more than tar paper.

The only time I've heard the term is in the context of a replacement job. A
tearoff means removing the shingles and the underlying felt, repairing any
underlayment and buliding the roof back up.