0048444001900

Grace

Model 5008025

Internet #202288626

Store SKU #298335

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

$113.13 /each
  • 20 times stronger than felt
  • Fast and Easy Installation
  • Can be used under all major roof coverings

Frequently Bought Together

Product Overview

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

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Customer Questions & Answers

22 Questions47 Answers

Customer Questions & Answers

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

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4 answers

what is the heat rating? is it good for over 200 degrees?

This question is from Tri-Flex 48 in. x 250 ft. Synthetic Roll Roofing Underlayment
April 10, 2015
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Answers (4)

Asked by
Oregon
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August 16, 2015
Answer: 
I have installed this product on hundreds of roofs with metal shingles and have never had a problem.
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Asked by
Sacramento, CA
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June 30, 2015
Answer: 
I wouldn't think so. Their literature doesn't mention a maximum temperature.
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April 15, 2015
Answer: 
gonna do metal not shingles, metal gets hotter, that's why i was wondering.
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Asked by
Williston ND
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April 15, 2015
Answer: 
Not sure on the temp. But I don't think it would get that hot on a roof under the shingles.
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4 answers

does this product needs nailing or peel and stick?

This question is from Tri-Flex 48 in. x 250 ft. Synthetic Roll Roofing Underlayment
Asked by
Louisville,ky
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April 7, 2015
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Asked by
Toccoa, Ga
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July 6, 2016
Answer: 
Nailing, Look up some youtube videos on how to secure this material.
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Asked by
Sacramento, CA
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June 30, 2015
Answer: 
This needs to be nailed. The peal and stick is the Grace Ice & Water Shield.
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Asked by
Williston ND
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April 15, 2015
Answer: 
No peeling just line up straight and nail down
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April 7, 2015
Answer: 
Yes, this product needs to be mechanically attached.
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3 answers

Will this product work on a roof with a less than 3/12 pitch?

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January 3, 2016
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Asked by
Great Falls, MT
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May 3, 2016
Answer: 
Hello TM, good question. Grace underlayment should not be used at slopes less than 2:12, provided the slope is also acceptable to the primary roof covering. On slopes of less than 3:12, Grace membrane should be half-lapped a full 24 inches over the underlying course, shingle style. Hope this Helped.
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Asked by
Baltimore, Maryland
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January 26, 2016
Answer: 
I would not recommend it. On low pitch roofs, I would strongly suggest Grace Water and Ice. This is pricey but, it virtually eliminates the roof ever leaking.
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January 4, 2016
Answer: 
TRI-FLEX may be applied on roofs with slope of 2:12 or more. On roofs with slope of 2:12 to 3:12, the product should be overlapped 24”. (ie, “half-lapped”)
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3 answers

how long can this be exposed to the elements before final roofing is complete?

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December 30, 2015
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Asked by
Toccoa, Ga
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July 6, 2016
Answer: 
This material itself would be good for a couple of years for sure but I wouldn't suggest it as the panels beneath would suffer if not totally sealed up. Wind and rain will blow under it at some point under normal positioning and securing of the material to the sheeting.
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Asked by
Baltimore, Maryland
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January 26, 2016
Answer: 
6 months
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January 4, 2016
Answer: 
TRI-FLEX is extremely durable. TRI-FLEX should be installed with cap nails or cap staples to maximize exposure. TRI-FLEX installed with capped nails or cap staples may be left exposed up to 6 months before the final roof covering is installed.
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Customer Reviews

Rated 4.7 out of 5 by 87 reviewers.
Rated 2.0 out of 5.0 by PROBLEMS WITH PRODUCT. Product shrinks when sun hits it or hot. It lifts out of the valleys. I bought this because of the claim that is could stay uncovered up to six months. The listed problems occurred after a few days of alternating rainy and hot periods. 1st It didn't feel stable under foot as it was being laid. A problem when 20 feet up. It slides on the roof held only by stretching nail holes. I worry about leaks at nail holes because of stretching when you walk. 2nd When the product heated up it got real tight. -Enough so that is revealed seams in the rolls that pulled apart. 3rd This was the worst part. When it tightened up from the sun. It lifted out of the valleys. This required the product being cut and new felt being placed before shingling. Overall. I will not use this product again. August 19, 2016
Rated 5.0 out of 5.0 by Best investment I could have made After tearing off my old roofing and seeing how the felt paper was just crumbly apart I was so glad I bought the Grace Triflex underlayment . It is strong & lightweight & I won't be worried about it deteriating July 16, 2016
Rated 5.0 out of 5.0 by Great Under lament Works really well easy to install, excellent durability, much better than felt. A little slippery when wet, only complaint I wish it had more lines for shingle alignment. July 19, 2016
Rated 5.0 out of 5.0 by easy to use, light weight This material is thin and light weight. Very easy to use. It doesn't stretch or crease easily. It's as easy to cut as paper. It seems to be as waterproof as advertised and it won't absorb water and wrinkle and buckle like tar paper. It's easy for a one man operation to cut a piece to the entire length of the roof, tack one end down and stretch it out across the whole roof without a massively heavy roll sliding down the roof. Lots of material on a roll. June 25, 2016
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 Great product! Easier to install than felt. Tougher and more durable than felt. Lasts longer than felt - up to months before cover. Cheaper than felt. So why does anyone use felt? Well pleased. May 10, 2016
Rated 4.0 out of 5.0 by Excellent as temporary roof covering. Excellent as temporary roof covering. Has held up very well for more than 18 months while preparing to re-shingle. May 7, 2016
Rated 5.0 out of 5.0 by Great product Is an excellent underlayment I would use again if I were to build again April 6, 2016
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