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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 I install this upside down (or white writing down) so it is all Black showing?
by|May 5, 2016
2 Answers
Answer This Question

A:  Hello Joe, No. The material is high strength woven synthetic roofing underlayment coated with a layer of UV stabilized polyolefin. On the Printed Side. It will not provide you the same protection as it would if used as intended. Hope this Helped answer your question.

by|May 3, 2023

A:  I wouldn't instructions indicate letters up

by|May 3, 2023
caret
Q:good for tile roof?
by|May 4, 2016
1 Answer
Answer This Question

A:  TRI-FLEX may be used with mechanically attached tiles, but it is not likely to hold the tiles that have been cemented down in place on a sloped roof.

by|May 3, 2023
    caret
    Q:Used as a Pond Underlayment?
    by|May 2, 2016
    2 Answers
    Answer This Question

    A:  Hello CampFireCooker, Simple answer would be NO. This stuff is very tough & would make a great barrier underlayment with your said waterproof tape an all, however by itself I do not believe this would perform as you want. I hope this Helped.

    by|May 3, 2023
    1 found this answer helpful

    A:  Grace SYN 15 is designed as a premium water-shedding material to be used in place of roofing felt. It is not designed as waterproofing for this type of application.

    by|May 3, 2023
      caret
      Q:does this material provide a seal aroynd the holes from the fasterners ?
      by|Feb 24, 2016
      1 Answer
      Answer This Question

      A:  TRI-FLEX is a premium water-shedding material that is much stronger than the asphalt saturated felt that is traditionally used as an underlayment in roofing. For waterproofing protection, including sealing around fastener holes, we recommend using Grace Ice & Water Shield.

      by|May 3, 2023
        1 found this answer helpful
        caret
        Q:Will this product work on a roof with a less than 3/12 pitch?
        by|Jan 3, 2016
        3 Answers
        Answer This Question

        A:  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.

        by|May 3, 2023
        2 found this answer helpful

        A:  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”)

        by|May 3, 2023
          2 found this answer helpful

          A:  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.

          by|May 3, 2023
          3 found this answer helpful
          caret
          Q:how long can this be exposed to the elements before final roofing is complete?
          by|Dec 31, 2015
          3 Answers
          Answer This Question

          A:  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.

          by|May 3, 2023

          A:  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.

          by|May 3, 2023
            3 found this answer helpful

            A:  6 months

            by|May 3, 2023
            1 found this answer helpful
            caret
            Q:Can I lay this over a roof with cracks to stop leaking
            by|Dec 20, 2015
            1 Answer
            Answer This Question

            A:  Grace underlayments are designed for use on sloped roof decks, and should be covered by a roof covering material as soon as possible. (shingles, metal roofing, etc). It is not designed for permanent exposure, or use over the shingles or other roof covering. The product will provide a water-shedding type protection over small cracks/gaps, such as the gaps between plywood on the roof deck.

            by|May 3, 2023
              1 found this answer helpful
              caret
              Q:Can this product be used under a steel / metal roof?
              by|Nov 1, 2015
              3 Answers
              Answer This Question

              A:  Hello Weston, Yes this would make a fine Underlayment for your Metal Roof. I did the exact same thing on a shed I Built, this stuff is amazing! I also sealed all the seams with Tyvek Tape. Go Forth & Build! I hope this Helped.

              by|May 3, 2023

              A:  Yes, It is highly recommended under metal roofs. There are not many choices for underlayments for metal roofs. Do not use regular tar paper / felt. It will not hold up Also do not use regular roofing nails under a metal roof. Ringed Plastic cap nails are required to be used with synthetic roof underlayments..

              by|May 3, 2023
              2 found this answer helpful

              A:  Yes, TRI-FLEX may be used under metal roofing

              by|May 3, 2023
                1 found this answer helpful
                caret
                Q:Could I use this along with regular roofing paper to double the underpayment?
                by|Oct 29, 2015
                2 Answers
                Answer This Question

                A:  Yes, but the paper is a waste of money. No need to double up if the paper is not already in place. This material is much better.

                by|May 3, 2023

                A:  Yes, two layers of TRI-FLEX may be used. TRI-FLEX is compatible with traditional roofing felt.

                by|May 3, 2023
                  2 found this answer helpful
                  caret
                  Q:does this product meet florida's atsm d226 type ll building code
                  by|Oct 3, 2015
                  1 Answer
                  Answer This Question

                  A:  Yes, it does!!

                  by|May 3, 2023

                    Compare Similar Items

                    current item

                    Unrolled length (ft.)

                    250

                    50

                    65

                    Product Width (in.)

                    48 in

                    36 in

                    36 in

                    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