REX™ SynFelt Synthetic Roof Underlayment

Features and Benefits

REX™ SynFelt is a high strength woven synthetic roof underlayment that can save you 50% in labor and time expense, compared to 30# felt. Here’s why:

• The most slip resistant underlayment in the industry
• 20 times stronger than felt–won’t tear-off or buckle when wet
• 10X lighter per square and 20X stronger than 30# felt
• 10 squares per roll weighing only 28 lbs (250 ft roll)
• 5 squares per roll weighing only 14 lbs (125 ft roll)
• UV resistant and can be exposed for up to 6 months
• Light gray color reduces heat and provides cooler working surface

Pre-printed nailing pattern speeds installation. The smartest builders and roofers in America use REX™ SynFelt.

Roll Size

Roll Width                 48 in

Roll Length               125 or 250 lineal feet

Weight Per Square     2.8 lbs

PROPERTY TESTED    RESULTS

Roll Width                 48 in

Roll Length              125 or 250 ft

Weight Per Square   2.8 lbs

Nail Seal Ability      Pass

Water Transmission  Pass

Tensile Strength

MD                     96 lbs

CD                    116 lbs

Tear Strength

MD                     58 lbs

CD                      77 lbs

Pliability               Pass

Water Ponding      Pass