what self sealing peel+stick product is the best
compo of price strong sticking and sealing
and has a LONG LONG LIFE [I DONOT WANT TO DO THIS AGAIN EVER ]
I am using 5v metal on top of the roof
and want a good seal on the screws for the 5v
IS A DOUBLE LAYER OF P+S A BETTER SEAL ?
if not what is the best under layer product to use first ?
got the front 1/2 of the roof off clear of nails ect
survived the last front with heavy rain under a doubled plastic sheeting