Installation Guide
Premium Performance Synthetic Underlayment
Superior Slip
Resistance
PRODUCT DATA SHEET
TRI-FLEX® XT synthetic roofing underlayment is a high performance water-shedding underlayment.
The new coating formulation provides superior foot traction. It is 20 times stronger than #30 felt and
withstands high wind conditions; it is lighter than #30 felt and covers more area. The product is
mechanically attached to the roof and can be used alone or in conjunction with GCP self-adhered
underlayments.
TRI-FLEX® XT roofing underlayment provides a stable base for the application of mechanically-attached
roof coverings and serves as a secondary water shed to help prevent leaks if water penetrates
the primary roof covering. The product may also be used to temporarily “dry in” the structure
for a period of 6 months before the roof construction is finished or if the primary roof coverings
become damaged.
TRI-FLEX® XT underlayment is suitable for application as part of all major roof covering systems.
Product Description
Tri-Flex® XT underlayment is a high strength woven synthetic
roofing underlayment coated on both sides with slip resistant
polymers. The new and improved coating formulation provides
superior foot traction. This composition creates a tough,
weather-resistant membrane designed to perform in the harshest
conditions in North America.
Tri-Flex® XT roofing underlayment is available in 10 sq rolls
(48 in. wide x 250 long), and is available in with a black or gray
topside surface. .
Features & Benefits
Below are some of the major benefits of Tri-Flex® XT roofing
underlayment:
Improved Slip Resistant Surface - New coating provides superior
foot traction
It’s lighter and covers more area - A roll of underlayment is
around half the weight of #30 felt, and has nearly 5 times the
coverage.
It’s stronger - Tri-Flex® XT roofing underlayment is 20 times
stronger than felt and won’t tear away from nails even in high
winds.
It’s more durable - Tri-Flex® XT underlayment can be le
exposed for up to 6 months. It doesn’t dry out or rot at high tem-
peratures. It doesn’t crack or become brittle at low temperatures.
Facilitates faster and easier installation - The lighter rolls
make the one-person application fast and easy. It also means
fewer trips up the ladder and lower labor costs.
Product Advantages
• Improved Slip Resistant Coating
• Lighter and covers more area
• Stronger and more durable
• Facilitates faster and easier installation
• Suitable for use under all major roof coverings
• Custom Logo Printing Available
• 25 Year Warranty