Shop Standard Self Sealing Ice And Water Roof Underlayment Roll 3X75 Ft 40 Mil High Temp Asphalt Sheet For Tough Shingle Jobs And Bulletproof Leak Blocking Coverage

Heavy duty ice water shield for shingle replacements
✔️ Single 40 mil asphalt mat 3x75 ft seals nails blocking roof leaks

This handy single roll acts as a heavy duty waterproof barrier installed directly over your framing deck before attaching shingles or metal panels. Contractors and homeowners peel off the backing liner then press the sticky mat across sloped surfaces in cold weather zones where ice dams or driving rain threaten to push moisture underneath outer layers.

✅ 40 millimeter thick asphalt coated backing handles twenty two pounds of puncture load during work
✅ Heat stable mix stays flexible when summer sun hits two hundred sixty degrees
✅ Peel off release liner exposes strong adhesive that sticks straight to wood decks
✅ Sixty day UV limit protects the surface while you wait to install top coverings

💡 How does self sealing ice and water shield stop leaks around roof nails?

The built in bitumen adhesive activates when you roll it tight so the goo flows into every screw hole and seals out moisture before it hits your rafters. High strength polyester mesh reinforces the roll preventing tears during wet weather installs Sticky contact layer bonds permanently to plywood sheathing without needing extra clips Weather resistant coating guards against ice dam overflow and keeps shingle bases dry until you place tiles ✝️