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- 75 Square Foot Roll Shower Waterproofing Underlayment
- Roll Measures 36″ wide x 25′ long
- .012″ thickness makes install easy, with less buildup
- Installs with Unmodified Thinset Mortar
- Thin, pliable, tear-resistant material
USG Durock Shower System Waterproofing Membrane is perfect for waterproofing custom walk-in showers where ceramic, porcelain, or natural stone will be installed. Tile shower waterproofing underlayment provides a completely waterproof barrier between the substrate and the installed tile when it is applied to code-approved substrates with unmodified thinset mortar. This membrane is a vapor retarder that is thin, pliable, and extremely durable. 75 square foot rolls measure 36″ wide x 25′ long and is installed using a 3/16″ x 3/16″ V-Notch, or 1/8″ x 1/8″ Square or U-Notch Trowel. This waterproofing membrane is only .012″ thick, making installation easy without excessive buildup. Embed the membrane into the mortar that is applied to the substrate, with a finishing trowel or similar tool and work out any air bubbles. Make sure to overlap all adjoining sections a minimum of 2″, to ensure a completely waterproof barrier. Price listed is for (1) 75 square foot roll of Durock Shower System Waterproofing Underlayment by USG.