IB-3 is an economical waterproofing underlayment featuring a granulated surface that keeps ice dams, melting snow and blowing rain from entering the structure. The self-adhesive backing forms a strong bond to the roof deck, and the tough, rubberized asphalt seal-seals around nails and fasteners. Applies easily at eaves, valleys, vents, skylights and chimneys. The release film has a centered perforation that makes for a very easy installation in valley areas. A rugged and time tested product in cold, rainy climates where ice dams can quickly occur. Installs in temperatures above 40 degree F. 5 year warranty, 30 day exposure.
- Installs in fair weather conditions and in temperatures above 40 degrees Fahrenheit
- Minimum slope for installation is 2 inches per foot
- Easy to remove split release liner for fast installation and ideal for valley applications
- Self-seals around common fasteners
- End laps and side laps must be coated with asphalt roofing mastic for a waterproof seal
- May be left exposed for up to 30 days
- 5 Year Limited Warranty
- Roll Width: 36 inches (3 feet)
- Roll Length: 65 feet
- Roll Weight: 65 pounds for the 65 feet option
- Roll Thickness: 50 millimeters
- Roll Coverage: 195 Square Feet or 1.95 Squares for the 65 feet option
- Color: Black
- Code Compliance: ASTM D 1970, Florida Building Code FL#11842.1, Miami-Dade County Approved, ICC-ES ESR-1737, LA County (LARC/LABC), State of California (CRC/CBC) and Texas Department of Insurance listed
