Which subcontractor should perform the work of fire caulking at the head of a rated gypsum board…

Which subcontractor should perform the work of fire caulking at the head of a rated gypsum board wall? Which subcontractor should perform the fire caulking around an electrical conduit penetrating a rated gypsum board

wall?

 

"Get 15% discount on your first 3 orders with us"
Use the following coupon
FIRST15

Order Now