Grace Tri-Flex XT Synthetic Roofing Underlayment - 4' x 250' Roll

Quick ID: Q26109


In Stock

Usually Leaves Warehouse in 5-7 Business Days

ShippingShips for $17.95 or Free with $199 Order


  • Synthetic replacement for #30 felt
  • Safer - skid resistant membrane provides better foot traction
  • Easier - Half the weight of #30 felt and nearly 5 times more coverage
  • Can be exposed up to 6 months
  • Mechanically fastened with capped nails or staples
  • Suitable for use under all major roof coverings
  • 1000 square feet coverage
  • Gray topside surface
  • Custom logo printing available


Grace Tri-Flex XT is a high performance water-shedding underlayment designed to overcome the shortcomings of traditional roofing felt. The membrane incorporates an improved skid resistance coating providing better foot traction. It is 20 times stronger than #30 felt and can withstand high wind conditions; it is lighter than #30 felt and covers more area making installation safer and easier.

Tri-Flex XT is mechanically attached to the roof and can be used alone or in conjunction with Grace self-adhered underlayments. It can be exposed up to 6 months. It has a gray topside surface. The Tri-Flex XT can be co-branded with a custom logo for an additional plate charge.


Manufacturer Part Number112798
Sub BrandGCP Applied Technologies
Coverage (Square Feet)1000
Installation MethodMechanically fastened with capped nails or staples; Laid horizontally, starting at bottom of roof with print side up; Side laps must be minimum of 4 in. and end laps minimum of 6 in.
Installation Tools RequiredCapped nails or staples having 1-inch diameter plastic/metal caps - spaced at 8 in. OC on both side and end laps. High wind and coastal zones - double fastening to 4 in. OC; All cases - fasten at 24 in. OC down middle of roll in the field of the roof
Package Quantity1

Weights and Dimensions

Weight (Pounds)28
Length (Feet)250
Thickness (Inches)7 mil
Width (Inches)48

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