Kerdi is a sheet-applied polyethylene waterproofing membrane and vapor retarder. Kerdi200/5M covers 54 sq. ft. and is ideal for waterproofing tiled tub surrounds and showers. This membrane features an anchoring fleece on both sides to anchor it in thin-set mortar. Kerdi eliminates water damage which can lead to mold and mildew.
Highlights
Roll dimensions are 3 ft. 3 in. x 16 ft. 5 in.
For commercial and residential use
Installs easily with unmodified thin-set mortar (sold separately)
Q:I'm installing vct over concrete slab. Can I use this under it?
by|Dec 22, 2023
1 Answer
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A: It is very difficult to answer a question like this without more details. I would suggest that you call Schluter Systems’ customer support line at 1-800-472-4588 to discuss a solution it greater detail.
by|Feb 25, 2024
1 found this answer helpful
Q:Can kerdi shulter membrane be used for shower pan?
by|Oct 22, 2023
1 Answer
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A: The KERDI can be used on a dry pack mortar shower pan to aid and make this waterproof. However, we do not recommend using the KERDI directly on a wooden substrate. Please feel free to call us at 1-800-472-4588 for more information.
by|Oct 23, 2023
Q:Can this be installed with tile adhesive
by|Aug 17, 2023
1 Answer
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A: The Kerdi should not be installed with a pre-mixed tile adhesive. We recommend using an unmodified thin-set or one of the Schluter thin-set products.
by|Dec 16, 2023
1 found this answer helpful
Q:can this be used on the subfloor to waterproof under drypack?
by|Aug 16, 2023
1 Answer
Answer This Question
A: It is very difficult to answer a question like this without more details. I would suggest that you call Schluter Systems’ customer support line at 1-800-472-4588 to discuss a solution it greater detail.
by|Aug 17, 2023
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Customer Reviews
4.4 out of 5
4.4 out of 102 reviews
88% recommend this product
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Showing 1-10 of 102 reviews
May 5, 2022
Easy to use.
Easy to use. Good waterproofing solution.
by
Verified Purchase
Recommended
Oct 23, 2020
Really only time will tell how well this product holds up, but being that not only is it supposed...
Really only time will tell how well this product holds up, but being that not only is it supposed to stop water from infiltrating outside the shower wall, but it also basically holds up the entire tile installation, I have high expectations for it.
Pros:
- Supposed to keep water infiltration into the substrate to a minimum.
- Nice grid print to help keep tiles nice and straight.
Cons:
- Expensive. Each roll is $119, and will only cover two walls (if shower is 36"x36"). So, you will have to buy two rolls and have very expensive waste left over. SUGGESTION: Cut any remaining membrane into five-inch wide strips and use for taping joints and corners. This will save you money by not having to buy Kerdi Band tape.
- Hard to handle. It's like hanging wallpaper, except you are using mortar to bond the paper to the wall.
- You should only be using Schluter unmodified thinset to stick the membrane to the substrate and the tile to the membrane. Custom Blend is garbage, and will make it impossible to file a claim with Schluter should the installation fail. Why does Home Depot not sell Schluter mortar with it's other Kerdi products?
One last, if you have never installed this before, find every video that you can about installing this stuff and watch it before you even think about buying this stuff.
by
Verified Purchase
Recommended
7 found this review helpful
Feb 27, 2020
Not recommended for amateur DIY projects.
My husband and I are amateurs who have done a lot of DIY projects with tile. We have tried working with the Kerdi membrane twice now, and we are giving up on it. Getting the adhesive just right so the stuff will stick adequately requires more skill and patience than we have, despite our experience. We are in the middle of a shower project, and spent a frustrating, messy couple of hours yesterday to get half-way through installing the membrane, with barely 50% of it actually sticking. We are going to rip it out today and go with Red Guard instead.
by
9 found this review helpful
Jul 16, 2019
I have used this product before. It maybe an added expense to the project, but it is worth it. It...
I have used this product before. It maybe an added expense to the project, but it is worth it. It would be a complete waste of time and money to cut costs and discover the tiled walls failed. Call it insurance. You don't need it, but it is a protection to your home.
by
Verified Purchase
Recommended
Apr 9, 2019
This product is very user friendly, easy to follow instructions. I would use it in every shower
This product is very user friendly, easy to follow instructions. I would use it in every shower
by
Verified Purchase
Recommended
Sep 18, 2018
I needed large patches over the Kurdi foam board but I realized later that the material is thicke...
I needed large patches over the Kurdi foam board but I realized later that the material is thicker than I expected. I should have ordered the tape. The membrane is strong but easy to cut. It sticks to mortar pretty well but buildup is a problem for 2in overlap requirements. May be there should be wider tape like 10 inches as an option.
by
Verified Purchase
Recommended
Jun 10, 2015
Good buy, easy install, use as directed and a sure bet for waterproofing.
When using this product use the directions and you can't fail. Kerdi will work for you as a complete waterproofing system behind your tiles. Do not worry if you get thin set on the top of the Kerdi. It will have more thinset on it when putting up your tiles. Have some fun !
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Kerdi is a sheet-applied polyethylene waterproofing membrane and vapor retarder. It is ideal for waterproofing tiled tub surrounds and showers. This membrane features an anchoring fleece on both sides to anchor it in thin-set mortar. Kerdi eliminates water damage which can lead to mold and mildew.