Beefy 41 Mil Ice And Water Roofing Underlayment 36 Inch X 67 Foot Roll Self Adhering High Temp Nail Sealable Membrane Tough As Nails Deck Cover No Hustle Setup With Lifetime Backup Warranty
✔️ 36 inch by 67 ft size, 41 mil thick, self adhering butyl blue
This single roll of heavy duty roofing underlayment serves as a reliable secondary barrier against moisture and ice dams on steep slope roofs. You will typically lay it over your deck before installing asphalt shingles, metal panels, or composite materials to keep leaks out during storms. The blue surface gives contractors a visual guide so they know exactly where they laid the material. Since it sticks right to plywood or OSB, you skip the hassle of fussy taping. Plus, the split release liner peels back smooth so you can roll it out fast and keep moving through the job site.
✅ ASTM certified 41 mil thickness handles heavy weather loads✅ High temperature butyl seal stays sticky from 32 to 265 degrees
✅ Anti slip walking surface keeps crews safe while installing
💡 How does high temperature ice and water protection seal under shingles?
To block moisture you rely on a thick adhesive layer that bonds directly to the deck and fills every tiny gap. This handy setup handles extreme heat and keeps water away from your rafters.
- thick butyl compound crushes and seals around nail heads automatically
- handles hot deck expansion without sliding off during summer installs
- creates seamless overlap joints that shut out wind driven rain completely