#1 Home Improvement Retailer

Questions and Answers for Grace Tri-Flex 48 in. x 250 ft. Synthetic Roll Roofing Underlayment

Internet #202288626

Model #5008025

Store SKU #298335

  • 20 times stronger than felt
  • Installation is fast and easy
  • Used with all major roof coverings

Questions & Answers

26Questions
caret
Q:Can be used under a spanish composite tiles?
by|Oct 2, 2015
1 Answer
Answer This Question

A:  TRI-FLEX can be used under mechanically fastened tiles in sloped roof applications with greater than 2:12 slope as an alternative to roofing felt. TRI-FLEX is very durable, and will shed water from wind driven rain, or other materials. Grace also manufactures Ice & Water Shield, which is a self-adhered membrane which seals around roofing fasteners used to secure tiles.

by|May 3, 2023
    caret
    Q:Is this product grandulated?
    by|Aug 7, 2015
    2 Answers
    Answer This Question

    A:  No, but rubber soles do grip rather well to it when installing. Much safer and stronger than paper/felt underlayment.

    by|May 3, 2023

    A:  No it is not

    by|May 3, 2023
    caret
    Q:What material is it made of?
    by|Jul 17, 2015
    2 Answers
    Answer This Question

    A:  It is a synthetic material that needs to be cut. It will not tear.

    by|May 3, 2023

    A:  Hello david, This Material is high strength woven synthetic roofing underlayment coated with a layer of UV stabilized polyolefin. Hope this answers your question.

    by|May 3, 2023
    caret
    Q:What kind of fastener do I use to install this?
    by|Jun 4, 2015
    3 Answers
    Answer This Question

    A:  Plastic round cap roofing nail.

    by|May 3, 2023
    2 found this answer helpful

    A:  Hello Danny, The manufacturer recommends using capped nails. These are the nails you'll often see that have a plastic washer just under the head. I've included a link to some possible options below. I hope this helps. Cheers, Chris Capped Nails: http://www.homedepot.com/p/compare/?errorURL=ProductAttributeErrorView&langId=-1&storeId=10051&catalogId=10053&prodComp_0=205450474&prodComp_1=100111688&prodComp_2=100198483&prodComp_3=205450263&N=5yc1vZc28d&keyword=roofing+nails

    by|May 3, 2023
    5 found this answer helpful

    A:  I use the annular ring nails with large orange plastic washer. Roofing nails in a pinch if it isn't going to be exposed long .... and roofers often just staple it down if they are going to roof over it the same day. It's very tear resistant.

    by|May 3, 2023
    6 found this answer helpful
    caret
    Q:Could this material be used as a vapor barrier under a subfloor?
    by|May 16, 2015
    3 Answers
    Answer This Question

    A:  Possibly, but sheeting would be more suitable. Not self-healing, but is a good strong material for roofing.

    by|May 3, 2023

    A:  I would use a more traditional vapor barrier. This is water proof but breathable. Think of it as Tyvek for your roof. No it isn't self healing. You would need to use the Grace Ice & Water Shield.

    by|May 3, 2023
    1 found this answer helpful

    A:  It would definitely function as a vapor barrier. But as much as I love this product .... seem like tar paper might be a better way to go, or a product designed specifically for what you are doing. This stuff is not self healing .....think a very, very tear resistant plastic tarp, but thinner and flatter. Seems like the thickness of tar paper might provide a bit more cushion, and void filling capability, might be a bit more quiet in the long run. But this synthetic underlayment would definitely be a better vapor barrier if that's your major concern.

    by|May 3, 2023
    1 found this answer helpful
    caret
    Q:will this product lay over existing shingles to provide seperation for metal roofing install over it?
    by|May 7, 2015
    3 Answers
    Answer This Question

    A:  No.

    by|May 3, 2023
    3 found this answer helpful

    A:  No, this product goes under shingles.

    by|May 3, 2023
      2 found this answer helpful

      A:  Yes. Using this over your existing shingle roof before installing a new metal roof is an acceptable practice. It will not void your metal manufacturers warranty. I install commercial and residential metal roofing. This or any synthetic underlayment will provide the abrasion protection the bottom of the metal needs.

      by|May 3, 2023
        11 found this answer helpful
        caret
        Q:what is the heat rating? is it good for over 200 degrees?
        by|Apr 11, 2015
        4 Answers
        Answer This Question

        A:  Not sure on the temp. But I don't think it would get that hot on a roof under the shingles.

        by|May 3, 2023
        1 found this answer helpful

        A:  I wouldn't think so. Their literature doesn't mention a maximum temperature.

        by|May 3, 2023
        2 found this answer helpful

        A:  gonna do metal not shingles, metal gets hotter, that's why i was wondering.

        by|May 3, 2023
          1 found this answer helpful

          A:  I have installed this product on hundreds of roofs with metal shingles and have never had a problem.

          by|May 3, 2023
          2 found this answer helpful
          caret
          Q:does this product needs nailing or peel and stick?
          by|Apr 8, 2015
          4 Answers
          Answer This Question

          A:  Nailing, Look up some youtube videos on how to secure this material.

          by|May 3, 2023
          2 found this answer helpful

          A:  This needs to be nailed. The peal and stick is the Grace Ice & Water Shield.

          by|May 3, 2023
          5 found this answer helpful

          A:  No peeling just line up straight and nail down

          by|May 3, 2023
          3 found this answer helpful

          A:  Yes, this product needs to be mechanically attached.

          by|May 3, 2023
            4 found this answer helpful

            Compare Similar Items

            current item

            Product Width (in.)

            48 in

            36 in

            36 in

            Unrolled length (ft.)

            250

            50

            65

            Product Thickness (in.)

            .04 in

            0.05 in

            0.0251969 in

            Underlayment/Barrier Type

            Leak Barrier

            Peel & Stick Underlayment

            Features

            Ice and Water Shield

            High Wind Resistant, Water Resistant