On Sep 18, 11:16*pm, Anonymous One wrote:
I have a flat roof with air conditioning duct work on the roof that is
leaking near the penetrations. I am going to have the roof torn off and
put on a new roof. Should I use torch or hot mop? Can you folks share
pros and cons of each. Thanks.

Are your AC and heat bill high, look into Foam roofing, up to R 7 "