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Internet # 100169081

Model # LQWAF1

Store SKU # 755504

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RedGard 1 Gal. Waterproofing and Crack Prevention Membrane

$77.53
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  • Ready to use - Roll it on
  • Quick dry formula
  • First step to achieving a lifetime warranty
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Product Details

About This Product

RedGard Waterproofing and Crack Prevention Membrane prevents cracks in tile and stone floors due to surface movement. The membrane also produces a moisture barrier. Suitable for use in residential and commercial tile and stone installations.

Highlights

  • Designed for interior and exterior use
  • Easy to use and can be applied by roller, trowel or airless sprayer
  • Apply 1 coat to inhibit tile and stone cracking due to minor surface movement
  • Apply 2 coats to waterproof floors and countertops
  • Rated for extra heavy-duty service
  • Return Policy

Product Information

Internet # 100169081

Model # LQWAF1

Store SKU # 755504

Specifications

Details

Color Family

Red

Flooring Material Features

Attached vapor barrier, Crack resistant, Fast-drying, Moisture resistant, Mold/mildew resistant, No mixing required, Premixed, Rapid setting, Waterproof, Waterproofing membrane

Flooring Product Type

Membrane

Indoor/Outdoor

Indoor/Outdoor

Pack Size

1

Recommended Surfaces

Brick, Ceramic, Cinderblock, Concrete, Drywall, Metal, Vinyl

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

1 Year Product

Questions & Answers

Do I use redgard seam tape with this product?
ByMar 10, 2026
0 Answer | 
Answer This Question

What's the Sq ft coverage
ByMar 9, 2026
1 Answer | 
Answer This Question

A gallon of RedGard Waterproofing and Crack Prevention Membrane will cover approximately 25 - 100 sq. ft. depending on how it is being used. For further assistance please contact us at 1 800 282 8786 option 2.

By|Mar 10, 2026


    Can you use over porcelain tile
    ByMar 9, 2026
    1 Answer | 
    Answer This Question

    RedGard Waterproofing and Crack Prevention Membrane will adhere to porcelain tile. However, we would like to know a few more details regarding you project. For further assistance please contact us at 1 800 282 8786 option 2.

    By|Mar 10, 2026


      how many sf does 1 gallon cover
      ByMar 6, 2026
      1 Answer | 
      Answer This Question

      A gallon of RedGard Waterproofing and Crack Prevention Membrane will cover approximately 25 - 350 sq. ft. depending on how it is being incorporated into the tile or stone installation. For further assistance please contact us at 1 800 282 8786 option 2.

      By|Mar 8, 2026


        Does Red Guard stick to GoBoard Pro Sealant
        ByMar 6, 2026
        1 Answer | 
        Answer This Question

        Please see Go Boards installation guidelines, as RedGard Waterproofing and Crack Prevention Membrane is listed as a compatible membrane. For further assistance please contact us at 1 800 282 8786 option 2.

        By|Mar 6, 2026


          Can I use on lumber?
          ByMar 3, 2026
          1 Answer | 
          Answer This Question

          RedGard Waterproofing and Crack Prevention Membrane is not suitable for use on dimensional lumber. For further assistance please contact us at 1 800 282 8786 option 2.

          By|Mar 3, 2026


            can i use in a steam room
            ByFeb 23, 2026
            1 Answer | 
            Answer This Question

            RedGard Waterproofing and Crack Prevention Membrane is suitable for use in steam showers. For further assistance please contact us at 1 800 282 8786 option 2.

            By|Feb 26, 2026


              Can Red Guard be painted once applied and cured ?
              ByFeb 19, 2026
              1 Answer | 
              Answer This Question

              RedGard Waterproofing and Crack Prevention Membrane can be painted with a water-based paint in some applications. For further assistance please contact us at 1 800 282 8786 option 2.

              By|Feb 23, 2026


                Viewing 1-8 of 1100

                Customer Reviews

                4.8 out of 5

                • 4.8 out of 1,411 reviews
                • 95% recommend this product
                Filter by:
                Showing 1-10 of 1,411 reviews
                Shower Contractor
                I’ve built about 15 showers and I have always used RedGard and I never had a problem.
                by
                  • Recommended
                  RedGard is the waterproofing of choice for my shower floors and Durock wall sheathing joints. It goes on easy, cures fast, and creates a watertight barrier to keep moisture and water out. I highly recommend this product!
                  by
                  It works, just do 2 layers on flat surfaces and many many layers (like 4 or 5) at inside corners
                  I’m old school, so I make shower surrounds with cement board and RedGard. This stuff works, just be sure to paint on several layers (at least two layers on flat surfaces and like 4 or 5 layers at inside corners) because this is your waterproofing membrane that will prevent water from seeping into your walls or floors and slowly rotting out your wood. Remember, grout is very porous to water! Use an old junky paint brush (or a new el cheapo dollar store brush) to apply this stuff and just toss the paint brush when you’re done. My only complaint is that this stuff is so expensive. Shop around, sometimes you can find deals online.
                  by
                    Redgard useless
                    Redgard dried out and useless
                    by
                    • Verified Purchase
                    Strange RedGard
                    Used it my shower on concrete board. Everything was fine, but then I checked how it was stacked with wall. It was similar with insulation tape. So disappointed. Never again...
                    by
                      Follow directions
                      Simple directions and easy to apply onto surface. Highly recommend application by following direction on container. I applied 3 coats to be extra certain of no leaks. 10 years after. Still no issues. Changes color to alert when product is dry. Works great.
                      by
                        • Recommended
                        3 found this review helpful
                        Amazing product. Easy to use. Used it behind the tile in our bathroom wall around the tub and it has never leaked
                        by
                        • Verified Purchase
                        product delivered damaged
                        Busted in the box and leaked out. Almost impossible to get ahold of someonenonline for a refund. This is dissappointing.
                        by
                          • Recommended
                          1 found this review helpful
                          Great product comes from the floor and tile world which I used on my deck to seal up cracks before I put it finishing porch and floor paint on top of it.
                          by
                          • Verified Purchase
                          2 found this review helpful
                          Great product
                          I remodeled my bathroom and used Redgard for water proofing... The product went on smooth and two coats were more than enough to completely waterproof the showerstall area.
                          by
                          • Verified Purchase
                          • Recommended
                          Showing 1-10 of 1,411 reviews

                          Compare Key Features

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                          Product Snapshot

                          Ideal for tile and stone, RedGard prevents cracks and provides waterproofing for heavy-duty use.
                          Ideal for wet areas like showers, offering crack isolation and fast drying time for efficient tiling.
                          Ideal for prepping wood subfloors for tile, offering 70% faster installation and self-leveling convenience.

                          Self-leveling capability

                          Coverage per unit

                          52 sq. ft. at 1/8 in. depth

                          Drying time

                          Walkable in 3 hours; Tile ready in 6 hours

                          Thickness range

                          Up to 1-1/4 in.

                          Waterproofing capability