Posted by Salvatore Oggianoabout 2 hours ago
UL Listing Firestop XFR Pipe
We need to firestop a 8" dia XFR pipe going through a metal stud and gypsum wall, 1hr rated. Pipe doesn't have insulation or other coatings. System needs to be tested for 50Pa, is there a listing that applies? Should we submit and engineering judgement?