Continuous cleats are recommended when flashing face dimension exceeds 3 inches and in areas
deemed high-wind zone as categorized by local building code.
Duro-Last announced that it has achieved platinum certification under the NSF American National Standard for Sustainable Roofing Membranes - NSF/ANSI 347.
If you have designed or built a low-slope roof with a single-ply membrane, at some point you will be confronted with this simple question: Is the vapor retarder necessary?