CT gray roof sealant??
Posted: Fri Apr 25, 2014 11:51 amSo, Ive got your basic flat roof cargo trailer. It uses galvalume roof panels with a seem every 4 feet or so. Well, my question is what is the gray rubbery sealant that is smeared on all the seams and around the edge? Is this EPDM that i hear som much about used in the RV industry? I'm installing a roof vent and one edge of the vent flange will be partially on that gray rubber. I'm trying to understand compatibility and make sure i use the correct products together.
I see that butyl tape is often recommended and is compatible with just about all materials. Would that be the way to go? If i use butyl tape is any additional caulking necessary? What about the screw heads on top of the vent flange, should those be caulked?
thanks in advance!
I see that butyl tape is often recommended and is compatible with just about all materials. Would that be the way to go? If i use butyl tape is any additional caulking necessary? What about the screw heads on top of the vent flange, should those be caulked?
thanks in advance!