Ezzie
Well-known member
I am putting an ABS vent stack up through my corrugated steel roof on the shop. This will be the vent for the septic system & drains.
My question is - is there a special membrane available for this task that will seal into the corrugations? All I have seen in the box stores are the flat ones for standard asphalt shingled roofs. I don't want any leaks around the stack.
My question is - is there a special membrane available for this task that will seal into the corrugations? All I have seen in the box stores are the flat ones for standard asphalt shingled roofs. I don't want any leaks around the stack.