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Kerdi-Band 5 in. x 16 ft. 5 in. Waterproofing Strip

  • Waterproofing strip for use with Kerdi, Ditra, and Kerdi-Board
  • Seals joints and floor/wall connections to prevent leaking
  • 4 mil thickness minimizes build-up under the tile
  • See More Details

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Product Overview

Kerdi-Band is a waterproofing strip for sealing butt joints and floor/wall connections with Kerdi and Ditra membranes. It is installed with unmodified thinset to ensure a fully water-tight seal to prevent leaks. The 4 mil thickness of the Kerdi-Band helps prevent build up under the tile.
  • Roll is 5 in. wide and 16 ft. 5 in. long
  • Thickness is 4 mil
  • Prevents build-up beneath the tile
  • Ensures a fully water-tight seal preventing leaks and mold growth
  • Adheres tightly to inside and outside corners without rounding at surface transitions

Info & Guides

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BrandRobertsSchluter SystemsSchluter SystemsFortifiber
NameSilicone Moisture Barrier 200 sq. ft. 31.5 in. x 76.25 ft. x 6 mil Underlayment for Solid & Engineered Wood Floors & LVPKerdi-Band 5 in. x 16 ft. 5 in. Waterproofing StripKerdi-Band 7-1/4 in. x 16 ft. 5 in. Waterproofing Strip500 sq. ft. 36 in. Wide x 167 ft. Long x 7 mil Thick Aquabar "B" Tile Underlayment Roll
Price
Ratings
(154)
(55)
(1)
(222)
Flooring Material FeaturesAttached vapor barrier,Mold/mildew resistant,Sound absorbingMold/mildew resistant,Waterproofing membraneMold/mildew resistant,Waterproofing membraneAttached vapor barrier,Cushioning,Moisture resistant,Mold/mildew resistant,Sound absorbing
MaterialPlasticPolyethylenePolyethylenePaper
Package coverage (sq. ft.)20000500
Flooring TypeEngineered Hardwood,Solid HardwoodCeramic,Porcelain,Stone,TileCeramic,Porcelain,Stone,TileEngineered Hardwood,Laminate,Stone,Tile
LocationFloorFloor,Shower,Tub surroundFloor,Shower,Tub surroundCountertop,Floor,Interior wall,Shower
Flooring Product TypeUnderlaymentUnderlaymentUnderlaymentUnderlayment
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Specifications

Dimensions

Product thickness (mil)
4
Product Width (in.)
5 in
Recommended overlap (in.)
2
Roll length (ft.)
16
Roll width (in.)
5

Details

Color Family
Orange
Commercial / Residential
Commercial / Residential
Flooring Material Features
Mold/mildew resistant,Waterproofing membrane
Flooring Product Type
Underlayment
Flooring Type
Ceramic,Porcelain,Stone,Tile
Location
Floor,Shower,Tub surround
Material
Polyethylene
Package coverage (sq. ft.)
0
Returnable
90-Day
Subflooring type
Concrete

Warranty / Certifications

Manufacturer Warranty
10 Year Limited Warranty

Questions & Answers

13Questions22Answers

Can I use this prouct over or on polystyrene shower wall. I thought about refacing my shower wall...

Asked by PA1 May 7, 2021
1
Answer

I will tell you what I think since I'm not sure I know the answer. Schluter sells all manner of polystyrene preforms (shower bases, curbs, etc...) but the kerdi fabric is already bonded to the foam products in all cases. Therefore I don't "know" that what you're asking will work but it seems logical to assume that if the kerdi fabric will bond to your polystyrene with thinset mortar then it should work fine. Buy a small roll and test it out. If it works, buy the wide rolls and attach them with thinset. One can always buy the 4'x8'x1/2" sheets of foam board with the kerdi attached but those are pretty pricey. The stuff works well though and I'm convinced that old style shower fabrications methods will eventually disappear.

Can you use only this band for the backing on a kitchen counter backsplash. I don’t need as much...

Asked by Mike February 19, 2021
3
Answers

No reason why not. If you can get the Kerdi to come down the wall and under the counter tiles that would provide best assurance of getting no water seeping under the backsplash. If this isn't possible, caulk under the backsplash tile. Kerdi should be embedded in thinset on its back and front.

can you use this with redgard

Asked by Steve November 2, 2020
2
Answers

It should not be necessary to Redgard this product since it's guaranteed to be waterproof. Still, I've done so in a second floor where I felt like the added layer of protection, sort of like a belt plus suspenders, was warranted. I've been using that shower for several years and it's great.

Can i use redgard to make it stay on the wall?

Asked by Hector August 30, 2020
3
Answers

this product is attached with a very thin layer of unmodified thinset mortar. The Schulter videos are very instructive and make this point pretty clear.

Couldn't water potentially be able to seep through the thinset to get behind this tape and kerdi ...

Asked by Bundles August 1, 2020
4
Answers

I had this concern as well. The manufacturer insists that a properly applied kerdi band (2" overlap) with a very thin layer of thinset between the band and it's neighboring kerdi fabric, resists any capillary action leading to water leaks and is in fact guaranteed waterproof when applied per instruction.

Can this be used to build up an area so thinner pebble tile can be added at the same height as the field tile.

Asked by Diymom July 26, 2019
4
Answers

Intriguing question there diymom; given that this product is not very thick, I believe it's spec'd at 4 mils, it would take quite a few layers of interdigitated materials. I.e. - bottom layer-thinset-kerdi-thinset-kerdi-thinset-kerdi. Assuming that the thinset layers were quite thin, let's say 6 mils, then the stackup of the these 3 layers would net you 30 mils, a pretty small number. Pebble tile tends to be 1/4" or so and field tile is 3/8" to 1/2" so you can calculate the number of stacks necessary to get there. One cannot just make the thinset really thick to make this go faster because it will probably no longer be waterproof. Perhaps it would be better to buy the kerdiboard instead. It is available in many thicknesses and the smallest is 5mm or 3/16"

What kind of trim can I use to finish off the sides of garage door insulation if I use foam plastic?

Asked by Jj January 7, 2018
0
Answers

can I use this strip to level my wall and install a strip of glass tile?

Asked by Rosca June 22, 2017
1
Answer

You probably could use it behind a strip of glass tile, IF you can apply UNMODIFIED thinset (no premixed mortar) to the wall surface. But this material is only as thick as the fabric of a windbreaker. You need to stick the band in place with mortar, and stick the tile to the band with mortar. I'd save the money on the band and just level the surface with a layer of thinset (you can use whatever you need for you surface), then spend the extra for the special, white glass-tile mortar to place your tile in place.

Can it be used over joint compound on sheetrock?

Asked by AngelCT71 January 15, 2017
3
Answers

I suppose it could be used for that if you're tying to waterproof an existing wall. In general I'd prefer to start with clean sheetrock or cement board and get the best adhesion possible between the membrane and the substrate material

Can I use this to cover expansion joints on a concrete floor?

Asked by matt August 30, 2016
1
Answer

The Kerdibamd is designed as part of the Schluter shower system. It is not intended to cover an expansion joint in concrete. To install the band, you must cover the surface where you will be placing it with UNMODIFIED thinset mortar, there must be no air bubles in the surface behind the band. This is a waterproofing component of a shower waterproofing system, not a product to bridge a gap.

Kerdi-Band 5 in. x 16 ft. 5 in. Waterproofing Strip - page 2

Customer Reviews

  • 4.7
    out of 55 reviews
  • 87% recommend this product
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Showing 1-10 of 55 reviews
I had a difficult time appling it to the inside and outside corners. On flat surfaces as well. A...
I had a difficult time appling it to the inside and outside corners. On flat surfaces as well. A little adhesive on the product would be beneficial to the person installing it.
by Shower
1 person found this helpful
This is the product that ties all the components of the Schluter waterproofing system together. ...
This is the product that ties all the components of the Schluter waterproofing system together. Be very careful when calculating how much band to purchase. You need enough to cover all the places that the waterproofing 'fabric' meets, and where the walls meet the shower floor. And if you use the Kerdiboard wall panels, you need a square piece of the Kerdiband to cover all the fasteners holding the panel on the wall. I cut all my bands for the wall & floor seams in advance & creased them by folding the band lengthwise and rubbing the fold across the edge of my work table. Unfortunately, when I calculated how much band I needed, I counted the seams, but _forgot_ to count how many patches I needed to cover the screws hanging the wall panels. It is kind of surprising how much band is needed to cover 100 screwheads. I had to go back to my Home Depot store to pick up another package of Kerdiband. Halfway down the isle to checkout, I turned back to grab a 2nd roll of band, "just in case". I'm really glad I did, because when I started cutting patches, I was still 4 square patches shy of what I needed. I had to open that 2nd roll of Kerdiband. My shower looks great, as far as it is finished. I should never have a problem with leaks. Now, on to covering all that Kerdiband with tile...
by Dedia
Waterproofing strip was easy to install and necessary to complete my Kerdi-board installation.
Waterproofing strip was easy to install and necessary to complete my Kerdi-board installation.
by mominpa
This will be my third application of the Kerdi Schluter shower or tub application. Just finished...
This will be my third application of the Kerdi Schluter shower or tub application. Just finished my Master Shower now getting ready to apply the Kerdi system around my Tub. The products are easy to work with and really helps when the walls are out of Plumb. We used 12x24" tiles getting the tiles flat was our challenge but no issue with any application and use, keeping the shower waterproof, no tile cracking or loosening. I recommend using this product as intended to protect the framing and underlayment from moisture damage.
by TahoeStar
by HomeDepotCustomer
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by Millard
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Showing 1-10 of 55 reviews