{"product_id":"usg-durock-brand-liquid-waterproofing-membrane-1-gallon-shower-waterproofing-crack-isolation","title":"USG DUROCK Brand Liquid Waterproofing Membrane 1 Gallon | Shower Waterproofing \u0026 Crack Isolation","description":"\u003ch2\u003eWhy choose USG DUROCK Liquid Waterproofing Membrane\u003c\/h2\u003e\u003cp\u003eUSG Interiors' DUROCK Liquid Waterproofing Membrane is an acrylic polymer based solution designed to combine waterproofing with crack isolation and vapor management. It's ideal for showers, wet areas, and spaces with heavy use, including steam environments where heat and humidity are common. The product offers a streamlined alternative to layering multiple products, helping tile and stone installations stay protected over time. \u003c\/p\u003e\u003cp\u003eDesigned for both residential and commercial projects, the membrane works with a variety of substrates such as concrete, masonry, cement backerboard, gypsum-fiber panels, and gypsum-based cement toppings. Its formulation is intended to tolerate typical substrate movement, providing anti-fracture protection up to 1\/8 inch (3 mm) over shrinkage and other non-structural cracks, which can be helpful in busy bathrooms and kitchens where movement occurs.\u003c\/p\u003e\u003cp\u003ePerformance attributes include a very low permeance rating of about 0.38 perms at 20 mils dry thickness (per ASTM E96 Procedure E). That level of moisture control supports tile and stone installations in wet zones while maintaining a breathable barrier where needed. The membrane dries quickly, supporting faster project turnaround times and less downtime between steps.\u003c\/p\u003e\u003ch3\u003eVersatile application and bonding\u003c\/h3\u003e\u003cp\u003eApplication is flexible: it can be rolled, brushed, troweled, or sprayed to suit different surfaces and angles. It bonds directly to drains made of stainless steel, PVC, and ABS, providing reliable connections in wet environments. It’s suitable for waterproofing floors, walls, and countertops, offering a single product for mixed tiling tasks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVertical surfaces: one coat on smooth substrates like Fiberock Brand Tile Backerboard for a clean, even first layer.\u003c\/li\u003e\n\u003cli\u003eHorizontal surfaces: two coats on rough substrates like Durock Brand Cement Board for thorough coverage.\u003c\/li\u003e\n\u003cli\u003eSubstrates include concrete, masonry, gypsum-fiber panels, and gypsum-based toppings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUsage tips and availability\u003c\/h3\u003e\u003cp\u003eAvailable in 1-gallon and 3.5-gallon pails, the membrane supports different project sizes. It can be used in showers and steam rooms without an additional vapor retarder when installed per guidelines, though proper substrate prep and coverage are essential for best results. Quick drying minimizes downtime between coats or subsequent tiles.\u003c\/p\u003e\u003cp\u003eIn real-world bathrooms and steam spaces, installers often combine this membrane with trusted setting mortars and grouts to complete a durable, moisture-resistant surface. While outcomes depend on the full installation system, the DUROCK membrane offers a practical approach to managing moisture and cracking in demanding wet areas.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What substrates can USG DUROCK Liquid Waterproofing Membrane be applied to?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Concrete, masonry, cement backerboard, gypsum-fiber panel, and gypsum-based toppings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this membrane be used in steam showers without an additional vapor retarder?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it is suitable for steam room\/shower installations when installed per guidelines.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"USG Interiors","offers":[{"title":"Default Title","offer_id":53086205902959,"sku":"B076YF45P3","price":81.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0598\/3087\/files\/usg-interiors-durock-liquid-waterproofing-bottle-1gal.jpg?v=1778635628","url":"https:\/\/taskholt.com\/products\/usg-durock-brand-liquid-waterproofing-membrane-1-gallon-shower-waterproofing-crack-isolation","provider":"TaskHolt","version":"1.0","type":"link"}