Kingspan Insulation
Kingspan Group

Synthetic Roofing Underlayment

Synthetic Roofing Underlayment header

Say goodbye to felt with GreenGuard’s premium Synthetic Roofing Underlayment. Engineered with 100% synthetic polypropylene weave and modified polyolefin coatings, it is stronger, lighter, more cost-effective, and more durable in inclement weather. With unique slip-resistant coatings on both sides, it provides a safer, more secure work surface. And because it contains no organic material, it does not support mold growth or rot. The underlayment installs easily with plastic cap staples or roofing nails and can remain exposed up to 6 months.

TYPICAL PHYSICAL PROPERTIES
Property Test Method GreenGuard Synthetic
Roofing Underlayment
Thickness
(inches/mils)
ASTM D 1777 0.007/7
Weight
(lbs./1,000 ft.2)
ASTM D 3776 22
Grab Tensile Strength
(lbs./in., Warp/Weft)
ASTM D 5034 98/100
Trapezoidal Tear Strength
(lbs., Warp/Weft)
ASTM D 4533 40/40
Low Temperature Flexibility
(5ºF)
ASTM D 1970 Pass
No Cracking
Water Vapor Permeance
(perms)
ASTM E 96
Procedure A
0.04
UV Resistance
(months)
Outdoor Exposure 6
Fire Resistance Rating
(roof assembly)
ASTM E 108 Class A
DIMENSIONS / PACKAGING
Roll Size 4' x 250'
Roll Quantity 1,000 sq.ft.
Rolls/Pallet 24
Pallet Quantity 240 Squares