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Model # 5008025

Internet # 202288626

Store SKU # 298335

Tri-Flex 48 in. x 250 ft. Synthetic Roll Roofing Underlayment

This item has been discontinued.
The Home Depot no longer carries this specific product.

$113.13 /each




Model # 5008025

Internet # 202288626

Store SKU # 298335

Grace Tri-Flex synthetic, water-shedding roofing underlayment overcomes the shortcomings of #30 felt. It delivers advanced benefits that save the contractor time and labor. Grace Tri-Flex roofing underlayment is mechanically attached, and may be used in conjunction with Grace fully-adhered underlayments or alone.

  • More coverage per roll: Five times more coverage per roll compared to #30 felt enables increased efficiency, and labor savings
  • Durable: 6 month exposure time allows to temporarily dry in structures and enables flexible construction schedules
  • Lighter weight than #30 felt: Provides fast and easy installation, allowing time and labor savings
  • 20 times stronger than #30 felt: Can withstand higher wind conditions, preventing costly reworks
  • Versatility: Can be used under all major roof coverings
  • Grace expertise: Developed by the recognized leader in self-adhered roofing underlayment's and the manufacturer of grace ice & water shield

Info & Guides

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Coverage Area (sq. ft.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Thickness (In.) 
Unrolled length (ft.) 
Color Family 
Commercial / Residential 
Commercial / Residential 
Roofing Product Type 
Warranty / Certifications
Manufacturer Warranty 
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Rated 4.7 out of 5 by 78 reviewers.
Rated 5.0 out of 5.0 by Great Underlayment for a Metal Roof Bought this to cover up 30 lb Felt that was beat up by our Montana Winds in just 1 weeks time exposure, After getting the tar paper back down & secured I decided to spend the money & place this product up over the tar paper on my Shed/Out Building. It took about a week to arrive having it shipped to home. This stuff is OUTSTANDING! Wow! 1st off it doesn't tear very easily... 2nd it has a tackiness that is a comfort while working 12-15 feet up with no harnesses or Nets! LoL... It went on very easy & had marked lines for lining up & securing Properly to the roof deck. Used 1 inch roof nails from Home Depot to tack it down. It has held up Magnificently to the Montana Winds & a Few Micro Burst Storms Too! Sheds the water so Well & Seals So well I almost want to use it Solely as the roofing material... Just saying I believe the 6 months exposure would be an easy Stretch for this material! September 26, 2015
Rated 5.0 out of 5.0 by Strong and Durable! We are renovating an old 1920's farm house in Teton Valley Idaho. We have brutal long and cold winters. We are sticking to a tight budget and we needed to dry in the house for winter. The roof needed new sheeting and the budget did not allow for the actual roofing before winter. After reading reviews I chose to go with the Grace Tri-flex. Grace said that the product could be left exposed for up to six months. We installed the Tri-flex last October and just installed the Metal roof in June. It never leaked or tore even with our high winds and blizzards. Snow would never build up on the roof it would always slide right off. I would not recommend going as long as we did with it exposed as the plastic cap nails begin to get brittle in the sun. Don't try to go cheap and use staples, Tri-flex will shrink in the sun and pull out staples. It worked so well on the roof that I also used some of the left over Tri-flex to cover the gables where the siding was gone. Great product. Buy it! June 25, 2014
Rated 5.0 out of 5.0 by Great product Light weight and easy to use. Super strong material. Left out in weather not a drop of water came through. Great product. July 15, 2014
Rated 4.0 out of 5.0 by Excellent underlayment. Much better than felt. Easier for DIY, too. If we ever re-roof again, we would definitely use this underlayment. Worth the extra few $ over using felt. Much easier to work with, more reliable when it rains & so much more durable. Love it! Also made a much smoother base for shingles. October 19, 2012
Rated 5.0 out of 5.0 by Gret product Everything is tested to extreme temperatures and wind in Phoenix and this underlayment has passed. 20 times stronger than the cheap paper they normally use in house construction here. Was very easy to apply and the cost was very reasonable. August 28, 2014
Rated 4.0 out of 5.0 by Lightweight, durable, easy to install. I recievecd this shortly after ordering , but was delayed in installing. It is easy to store until needed. I was able to install by myself on 2 smaller roofs. I have yet to install on the main house, but the pitch of that roof will require assitance. It has been durable and did not require any adjustments thru a couple of rains after installation. I have used this on a previous site that withstood 80mph gusts back in the late spring. It is marked on the face for easy placement of fasteners. October 15, 2013
Rated 5.0 out of 5.0 by Great product for Washington winter This roofing product will be a big boost for the upcoming winter here in western Washington. November 4, 2014
Rated 5.0 out of 5.0 by Great Stuff Easy to roll out and apply. Not slippery to walk on. Very durable fabric. Love the product. Wouldn't use anything else. Wouldn't recommend anything else to anyone. April 15, 2015
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