waterproof underlayment

Modified Bituminous Underlayment is a hybrid product created from asphaltic polymer and synthetic fabrics. Combining the best of both products, Modified Bituminous Underlayment boasts a lightweight material that is easy to carry, easy to install, good waterproof performance. Charateristic Resists leaking and tearing Resistance to slipping provides a safer installation Lightweight, flexible material Will not wrinkle or blow in the wind during installation Wont stick to metal roofing-thermal stability in excess of 260F Passes 110mph wind test and 4-hour water spray test with cap and roofing nails Hybrid technology combines asphaltic polymer and synthetic fabrics or superior performance property valuelength145ftwidth3.1ftweight≥50lbsTensile strength N/200mmCD≥300NMD≥300NTensile tear strengthCD≥1500gfMD≥1500gfLow temperature flexibility≤23Fheat resistance≥185F