RedGard 39.4 in. W x 16.5 ft. L x 3 mm T Uncoupling Mat for Tile, Ceramic, Porcelain, Stone
$2.13 /sq. ft.
Covers 54 sq. ft.
$115.00
Pay $90.00 after $25 OFF your total qualifying purchase upon opening a new card. 
Apply for a Home Depot Consumer Card- Helps prevent cracks in tile and grout
- Use to replace 1/4" (6 mm) backerboard in flooring installations
- No fasteners required
- View More Details
Product Details
Specifications
Questions & Answers
45Questions
Q:Can I use Customs simple set, thin-set, ready to use premixed mortar with this membrane?
by|Aug 26, 2023
1 Answer
Q:What is the IIC rating fir tge Redgard Uncoupling mat ?
by|Jul 25, 2023
1 Answer
Q:Is this suitable for using on kitchen floor?
by|Jun 8, 2023
1 Answer
Q:Can you paint red guard over the uncoupling mat before installing the tile?
by|Mar 25, 2023
1 Answer
Showing 1-4 of 45
5
42
4
12
3
8
2
2
1
18
Jul 30, 2021
very disappointed
replacing two tile floors in under one year because tiles and grout are cracking. there is notice movement in tile. have never experienced this issue with tile backer board. will not use this product again.
by
Nov 2, 2018
Excellent product. Use Redguard for tiling two of my house tiled bathroom.
Excellent product. Use Redguard for tiling two of my house tiled bathroom.
by
Apr 17, 2018
Works Great
Used in a sunroom with 12x24 porcelain tile. Installed 1/2” plywood over 2x6 deck boards in what had been a screen in porch. Screwed all the wood down tight ti maje the floor as stiff as possible. Used best quality mortar and grout. A year later no cracks in grout or tiles. Will use again
by
Feb 6, 2018
This was the first time using this product. It was...
This was the first time using this product. It was easy to use and was very sturdy.
by
Jul 6, 2016
Easy to work with, seems stable so far
Disclaimer: I am not a tile expert. just a regular DIY-er, and have only done a few small tiling jobs in my life.
I went in to find Ditra, but all they had was RedGard, so I decided to give it a try in my bathroom with 12x24 inch floor tiles. It was very easy to handle and cut, and went in place with little hassle. I only had one seam on the non-tub half of the bathroom.
A couple things to note: make sure your mortar bed has even coverage, and be sure to press the product firmly into the bed. Use a roller if possible. I actually used a regular wooden rolling pin from the kitchen, and it was very helpful. Due to my lack of experience, I had a few areas where the mortar was too think, causing a bump. I was able to roll the excess out the side of the mat, much like an air bubble.
RedGard says you can tile on top right away, but I let it set up until the next day. For each section of tile, I used a regular wide putty knife to lay the first coat of mortar to fill the "dimples," then a 1/4 inch square notched trowel to lay down the final bed. The RedGard was firmly bonded to the subfloor. I grouted the next day; that was 2 days ago, and don't see any issues with the grout. My grout lines are very narrow, so I'm not sure if that helps, or why others reported issues with grout.
I am very pleased with how the job came out, and everything feels very solid. No one will think Bob Vila or Mike Holmes laid my tile, but any flaws in the job are due to my inexperience, not the uncoupling mat. I plan on using it for my other bathroom next year. Of course I can't predict how it will hold it up long term, but I don't see anything so far that concerns me.
by
Sep 25, 2023
The RedGard matting is thin and easy to install. It mated with the thinset very well. Using a grout float, I was able to push out air bubbles without much effort. The only negative thing I have to say is the roll has a memory when unrolled and corners tend to curl up requiring a small weight to hold them down. I used chunks of pressure treated wood of about 2lbs each. I am very pleased with the insulating quality of the RedGard. Though I am installing a heated floor over it, there was a noticeable difference between the temperature of the bare concrete and the thinset covered RedGard before I installed the heat mat.
by
Sep 20, 2023
Excellent was easy to use
by
Aug 30, 2023
by
Aug 30, 2023
Too early to tell; just installed it.
by
Aug 23, 2023
Good for the install, now we’ll have to see for the long haul as to if the settling cracks return.
by
0/0
Compare Similar Underlayment
 |  |  |  | |
| Brand | Custom Building Products | Schluter | DURAL | DRICORE |
| Name | RedGard 39.4 in. W x 16.5 ft. L x 3 mm T Uncoupling Mat for Tile, Ceramic, Porcelain, Stone | Kerdi 3 ft. 3 in. x 16 ft. 5 in. Waterproofing Membrane | Durabase WP 108 sq. ft. 3 ft. 3 in. x 32 ft. Waterproofing Membrane Underlayment | 1 in. x 2 ft. x 4 ft. Premium Subfloor Specialty Panel (10-Pack) |
| Price | $10500 | $11900 | $17877 | $19369 |
| Ratings | (82) | (96) | (3) | (81) |
| Flooring Material Features | Waterproofing membrane | Mold/mildew resistant, Waterproofing membrane | Attached vapor barrier, Moisture resistant, Mold/mildew resistant, Waterproofing membrane | Mold/mildew resistant |
| Material | Synthetic Fiber | Polyethylene | Polypropylene | Foam |
| Package coverage (sq. ft.) | 54 | 54 | 108 | 80 |
| Flooring Type | Ceramic, Porcelain, Stone, Tile | Ceramic, Porcelain, Stone, Tile | Tile | Prep & Protection |
| View Product | View Product | View Product | View Product |
Related Products
Explore More on homedepot.com
Outdoor Garden
Outdoor Living
Paint
- Metal Molding Construction Adhesive
- Difficult Surfaces Glass Primers
- Buy BEHR DYNASTY 8 oz. #HDC-CT-07A Vintage Tea Rose One-Coat Hide Eggshell Stain-Blocking Interior Paint & Primer Sample
- Shop Medium/semi-rough Paint Roller Covers
- BEHR PREMIUM PLUS 1 gal. #680B-4 Pressed Flower Satin Enamel Low Odor Interior Paint & Primer