Is Kerdi-Band worth it over a liquid waterproofing membrane?

For seams and corners in a Kerdi or Ditra shower, yes. It keeps the whole assembly in one system and is faster than coating every joint with liquid membrane.

Can I use it with regular modified thinset?

Schluter specifies unmodified thinset for bonding Kerdi-Band to Kerdi, Kerdi-Board and Ditra. Modified thinset can slow drying between impervious layers.

How much area does one roll cover?

One roll is 5 inches wide and 16 ft 5 in long, about 6.8 square feet of strip. That handles the seams and corners of a typical tub or shower surround; larger showers need two rolls.

Does it work on outside corners and curbs?

Yes. The pliable polyethylene folds over outside corners and curb edges, and Schluter also sells preformed Kerdi corners if you prefer.

When is the price lowest?

It is $30.13 at The Home Depot as of November 4, 2026, with 6 stores listing it new. Compare across those stores before buying, since tile sundries rarely go on deep sale.

Where is the Schluter Kerdi-Band Waterproofing Strip cheapest?

At The Home Depot, for $30.13, 72% under what the other stores charge, as of our latest check.

Where can I buy the Schluter Kerdi-Band Waterproofing Strip?

6 stores we checked sell it, including The Home Depot, diamondtoolstore.com, Lowe's, eBay, tileoutlets.com.

Schluter Kerdi-Band Waterproofing Strip

Best price now

$30.13at The Home DepotObserved at 10:51 AM

72% under what the other stores charge

Compared across 6 stores. Prices are checked against each store and labelled with when.

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Our take on the Schluter Kerdi-Band Waterproofing Strip

Kerdi-Band is a 5-inch-wide, 16 ft 5 in roll of orange polyethylene waterproofing strip with a fleece backing, made to seal seams, corners and floor-to-wall joints in Schluter's Kerdi and Ditra shower systems. It bonds with unmodified thinset, not adhesive, and the pliable 4 mil membrane folds into inside and outside corners. The best new price is $30.13 at The Home Depot as of November 4, 2026, with 6 stores listing it new.