{"product_id":"tile-crack-prevention-underlayment-mat","title":"MAXKOSKO Uncoupling Membrane, 1\/8\" Thick Underlayment Mat for Tile Crack Prevention \u0026 Waterproofing","description":"\u003cdiv class=\"mk-product-content\"\u003e\n\u003c!-- ==============================\n  Overview\n  ============================== --\u003e\n\u003cdiv class=\"mk-overview\"\u003e\n\u003ch2\u003eUncoupling Membrane for Tile Floors\u003c\/h2\u003e\n\u003cp\u003eMAXKOSKO Tile Crack Prevention Underlayment Mat is a standard non-adhesive uncoupling membrane designed to help protect ceramic, porcelain, and natural stone tile from cracking caused by minor movement between the substrate and tile covering.\u003c\/p\u003e\n\u003cp\u003eThe durable HDPE membrane is installed with suitable thin-set mortar beneath and above the membrane. Its dimpled structure helps distribute loads, improve mortar bonding, and create a protective separation layer between the subfloor and finished tile.\u003c\/p\u003e\n\u003cp\u003eThis economical tile underlayment is suitable for bathrooms, kitchens, basements, entryways, and other interior tile projects over properly prepared concrete, plywood, OSB, gypsum underlayment, and other approved substrates.\u003c\/p\u003e\n\u003cp\u003eLooking for easier installation or upgraded bonding performance? Compare the \u003ca href=\"https:\/\/maxkosko.com\/products\/self-adhesive-uncoupling-membrane\"\u003e Self-Adhesive Uncoupling Membrane \u003c\/a\u003e and the \u003ca href=\"https:\/\/maxkosko.com\/products\/double-fleece-tile-uncoupling-membrane\"\u003e Double-Fleece Uncoupling Membrane \u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"mk-feature-grid\"\u003e\n\u003cdiv class=\"mk-feature-card\"\u003e\n\u003ch3\u003eTile Crack Protection\u003c\/h3\u003e\n\u003cp\u003eHelps reduce stress transfer caused by minor movement between the substrate and finished tile surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mk-feature-card\"\u003e\n\u003ch3\u003eWaterproof HDPE Layer\u003c\/h3\u003e\n\u003cp\u003eHelps protect moisture-sensitive substrates when seams, corners, and transitions are properly sealed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mk-feature-card\"\u003e\n\u003ch3\u003eDimpled Mortar Bonding\u003c\/h3\u003e\n\u003cp\u003eThe structured surface creates cavities that fill with thin-set mortar for stable tile support.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mk-feature-card\"\u003e\n\u003ch3\u003eLoad Distribution\u003c\/h3\u003e\n\u003cp\u003eHelps spread loads across the tiled surface and reduce concentrated stress beneath individual tiles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mk-feature-card\"\u003e\n\u003ch3\u003eCut-to-Fit Design\u003c\/h3\u003e\n\u003cp\u003eThe lightweight membrane can be measured and cut to match different room layouts and floor areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mk-feature-card\"\u003e\n\u003ch3\u003eMultiple Subfloor Options\u003c\/h3\u003e\n\u003cp\u003eSuitable for properly prepared concrete, plywood, OSB, gypsum, and other approved substrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mk-inline-media\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0733\/9684\/6865\/files\/Uncoupling_Membrane_1.jpg?v=1741844221\" alt=\"MAXKOSKO non-adhesive tile crack prevention uncoupling membrane\" style=\"width: 100%; height: auto; display: block;\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0733\/9684\/6865\/files\/Uncoupling_Membrane_2.jpg?v=1741844221\" alt=\"HDPE uncoupling membrane for tile floor crack protection\" style=\"width: 100%; height: auto; display: block;\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ==============================\n  Important Before Ordering\n  ============================== --\u003e\n\u003cdiv class=\"mk-section\"\u003e\n\u003ch2\u003eImportant Before Ordering\u003c\/h2\u003e\n\u003cdiv class=\"mk-warning-card\"\u003e\n\u003ch3\u003eCheck Your Installation Requirements\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNon-Adhesive Design: \u003c\/strong\u003eThis basic membrane does not have a peel-and-stick backing. Suitable thin-set mortar is required to bond it to the subfloor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMortar Requirements: \u003c\/strong\u003eThin-set mortar is required both beneath the membrane and above the membrane before installing tile.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSubfloor Condition: \u003c\/strong\u003eThe substrate must be structurally sound, flat, clean, and free from dust, grease, loose material, or other contaminants.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWaterproof Installation: \u003c\/strong\u003eSeams, corners, penetrations, and floor-to-wall transitions must be properly sealed when a complete waterproof assembly is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStructural Limitations: \u003c\/strong\u003eThe membrane does not repair excessive floor deflection, unstable framing, loose subfloor panels, or major structural cracks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ==============================\n  Applications\n  ============================== --\u003e\n\u003cdiv class=\"mk-section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eMAXKOSKO Tile Crack Prevention Underlayment Mat is designed for interior tile projects requiring basic uncoupling protection, moisture protection, and load distribution.\u003c\/p\u003e\n\u003cul class=\"mk-list\"\u003e\n\u003cli\u003eBathroom and powder room tile floors\u003c\/li\u003e\n\u003cli\u003eKitchen and dining area tile installations\u003c\/li\u003e\n\u003cli\u003eBasement, laundry room, and utility room floors\u003c\/li\u003e\n\u003cli\u003eEntryways, hallways, and residential living areas\u003c\/li\u003e\n\u003cli\u003eResidential remodeling and renovation projects\u003c\/li\u003e\n\u003cli\u003eLight commercial tile flooring applications\u003c\/li\u003e\n\u003cli\u003eCeramic, porcelain, and approved natural stone tile\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"mk-inline-media\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0733\/9684\/6865\/files\/Uncoupling_Membrane_3.jpg?v=1741844221\" alt=\"Waterproof tile underlayment membrane for bathrooms and kitchens\" style=\"width: 100%; height: auto; display: block;\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0733\/9684\/6865\/files\/Uncoupling_Membrane_5.jpg?v=1741844221\" alt=\"Tile crack prevention membrane installation applications\" style=\"width: 100%; height: auto; display: block;\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ==============================\n  Specifications\n  ============================== --\u003e\n\u003cdiv class=\"mk-section\"\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"mk-spec-table-wrapper\"\u003e\n\u003ctable class=\"mk-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eNon-Adhesive Tile Uncoupling Membrane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eDurable HDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Method\u003c\/td\u003e\n\u003ctd\u003eMortar-Bonded Installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Functions\u003c\/td\u003e\n\u003ctd\u003eUncoupling, Anti-Crack Protection, Waterproofing Support and Load Distribution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Tile Types\u003c\/td\u003e\n\u003ctd\u003eCeramic, Porcelain and Approved Natural Stone Tile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Substrates\u003c\/td\u003e\n\u003ctd\u003eConcrete, Plywood, OSB, Gypsum Underlayment and Other Approved Subfloors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelf-Adhesive Backing\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble-Fleece Construction\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMortar Required Below Membrane\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMortar Required Above Membrane\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mk-inline-media\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0733\/9684\/6865\/files\/Uncoupling_Membrane_4.jpg?v=1741844221\" alt=\"Dimpled uncoupling membrane structure for thin-set mortar bonding\" style=\"width: 100%; height: auto; display: block;\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0733\/9684\/6865\/files\/Uncoupling_Membrane7.jpg?v=1741844221\" alt=\"MAXKOSKO non-adhesive uncoupling membrane product details\" style=\"width: 100%; height: auto; display: block;\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ==============================\n  Product Comparison\n  ============================== --\u003e\n\u003cdiv class=\"mk-section\"\u003e\n\u003ch2\u003eCompare MAXKOSKO Uncoupling Membranes\u003c\/h2\u003e\n\u003cp\u003eMAXKOSKO offers three tile underlayment options. Choose according to your preferred installation method, project budget, and required bonding performance.\u003c\/p\u003e\n\u003cdiv class=\"mk-spec-table-wrapper\"\u003e\n\u003ctable class=\"mk-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eInstallation Method\u003c\/td\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTile Crack Prevention Underlayment Mat\u003c\/td\u003e\n\u003ctd\u003eStandard non-adhesive membrane installed with thin-set mortar\u003c\/td\u003e\n\u003ctd\u003eEconomical crack protection for general tile projects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/maxkosko.com\/products\/self-adhesive-uncoupling-membrane\"\u003e Self-Adhesive Uncoupling Membrane \u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ePeel-and-stick backing with no mortar required underneath\u003c\/td\u003e\n\u003ctd\u003eFaster and cleaner floor preparation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/maxkosko.com\/products\/double-fleece-tile-uncoupling-membrane\"\u003e Double-Fleece Uncoupling Membrane \u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eMortar-bonded installation with fleece layers on both sides\u003c\/td\u003e\n\u003ctd\u003eEnhanced mechanical bonding and vapor management\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mk-warning-card\"\u003e\n\u003ch3\u003eQuick Selection Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the Basic Non-Adhesive Membrane: \u003c\/strong\u003eFor an economical solution focused on standard tile crack protection and mortar-bonded installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the Self-Adhesive Membrane: \u003c\/strong\u003e When faster peel-and-stick installation is preferred and you want to eliminate mortar beneath the membrane. \u003ca href=\"https:\/\/maxkosko.com\/products\/self-adhesive-uncoupling-membrane\"\u003e View Product \u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the Double-Fleece Membrane: \u003c\/strong\u003e When stronger mechanical bonding, reinforced construction, and additional vapor management are preferred. \u003ca href=\"https:\/\/maxkosko.com\/products\/double-fleece-tile-uncoupling-membrane\"\u003e View Product \u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ==============================\n  Installation\n  ============================== --\u003e\n\u003cdiv class=\"mk-section\"\u003e\n\u003ch2\u003eBasic Installation Overview\u003c\/h2\u003e\n\u003cp\u003ePrepare a flat, stable, and clean substrate. Apply suitable thin-set mortar with an appropriate notched trowel, place the membrane into the fresh mortar, and press firmly for complete contact. Apply compatible thin-set mortar over the membrane before installing the tile.\u003c\/p\u003e\n\u003cdiv class=\"mk-warning-card\"\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eConfirm Full Contact: \u003c\/strong\u003eLift a corner during installation to verify that the mortar is properly transferring to the underside of the membrane.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeal Required Areas: \u003c\/strong\u003eProperly seal seams, corners, edges, and transitions when waterproofing is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaintain Movement Joints: \u003c\/strong\u003eDo not cover or eliminate required structural, perimeter, expansion, or movement joints.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFollow Manufacturer Instructions: \u003c\/strong\u003eUse mortar suitable for the substrate, membrane, tile type, and project conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mk-inline-media\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0733\/9684\/6865\/files\/Uncoupling_Membrane_6.jpg?v=1741844221\" alt=\"MAXKOSKO tile underlayment mat installation over prepared subfloor\" style=\"width: 100%; height: auto; display: block;\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ==============================\n  FAQ\n  ============================== --\u003e\n\u003cdiv class=\"mk-section mk-faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this membrane have a self-adhesive backing?\u003c\/summary\u003e\n\u003cp\u003eNo. This is the standard non-adhesive version. Thin-set mortar is required to bond the membrane to the prepared subfloor.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need thin-set mortar above and below the membrane?\u003c\/summary\u003e\n\u003cp\u003eYes. Mortar is required beneath the membrane for subfloor bonding and above the membrane for tile installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan it be installed over plywood, OSB, or concrete?\u003c\/summary\u003e\n\u003cp\u003eYes, when the substrate is structurally sound, flat, properly prepared, and suitable for a bonded tile installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the finished installation automatically waterproof?\u003c\/summary\u003e\n\u003cp\u003eNo. The membrane provides a waterproof layer, but seams, corners, penetrations, and transitions must be properly sealed to create a complete waterproof assembly.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan this membrane repair an unstable or damaged subfloor?\u003c\/summary\u003e\n\u003cp\u003eNo. It helps manage stress caused by minor substrate movement but cannot repair structural cracks, excessive deflection, loose panels, or unstable framing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is it different from the Self-Adhesive Uncoupling Membrane?\u003c\/summary\u003e\n\u003cp\u003eThis basic membrane requires thin-set mortar beneath it. The Self-Adhesive Uncoupling Membrane includes a peel-and-stick backing that bonds directly to a properly prepared substrate, reducing installation steps.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/maxkosko.com\/products\/self-adhesive-uncoupling-membrane\"\u003e View the MAXKOSKO Self-Adhesive Uncoupling Membrane \u003c\/a\u003e\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is it different from the Double-Fleece Uncoupling Membrane?\u003c\/summary\u003e\n\u003cp\u003eThe Double-Fleece Uncoupling Membrane uses fleece bonding layers on both sides for stronger mechanical bonding and additional vapor management. This basic version is a simpler and more economical option for general tile crack protection.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/maxkosko.com\/products\/double-fleece-tile-uncoupling-membrane\"\u003e View the MAXKOSKO Double-Fleece Uncoupling Membrane \u003c\/a\u003e\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c!-- ==============================\n  Guides and Resources\n  ============================== --\u003e\n\u003cdiv class=\"mk-section\"\u003e\n\u003ch2\u003eChoose the Right Tile Underlayment\u003c\/h2\u003e\n\u003cdiv class=\"mk-support\"\u003e\n\u003cp\u003eChoose the membrane based on your installation method, substrate condition, project budget, and required bonding performance.\u003c\/p\u003e\n\u003cul class=\"mk-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBasic Non-Adhesive Underlayment:\u003c\/strong\u003e An economical mortar-bonded option for general tile crack protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Adhesive Uncoupling Membrane:\u003c\/strong\u003e A peel-and-stick option designed to reduce installation time and eliminate mortar beneath the membrane. \u003cbr\u003e\u003ca href=\"https:\/\/maxkosko.com\/products\/self-adhesive-uncoupling-membrane\"\u003e View Self-Adhesive Membrane \u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble-Fleece Uncoupling Membrane:\u003c\/strong\u003e A reinforced mortar-bonded option with double-fleece bonding and vapor management. \u003cbr\u003e\u003ca href=\"https:\/\/maxkosko.com\/products\/double-fleece-tile-uncoupling-membrane\"\u003e View Double-Fleece Membrane \u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ==============================\n  Product Images\n  ============================== --\u003e\n\u003c\/div\u003e","brand":"MAXKOSKO","offers":[{"title":"54 Sq. Ft. (16.4 Ft. X 3.3 Ft.)","offer_id":51302500860177,"sku":"M-54 Sq.Ft.","price":89.99,"currency_code":"USD","in_stock":true},{"title":"108 Sq. Ft. (32.8 Ft. X 3.3 Ft.)","offer_id":51302500892945,"sku":"M-108 Sq.Ft.","price":119.99,"currency_code":"USD","in_stock":true},{"title":"162 Sq. Ft. (49.2 Ft. X 3.3 Ft.)","offer_id":51302500925713,"sku":"M-162 Sq.Ft.","price":169.99,"currency_code":"USD","in_stock":true},{"title":"216 Sq. Ft. (65.8 Ft. X 3.3 Ft.)","offer_id":51302500958481,"sku":"M-216 Sq.Ft.","price":199.99,"currency_code":"USD","in_stock":true},{"title":"323 Sq. Ft. (98 Ft. X 3.3 Ft.)","offer_id":52738795176209,"sku":"M-323 Sq.Ft.","price":323.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9684\/6865\/files\/1_6dfde521-b028-4a80-b3d9-a9405a0bd382.jpg?v=1741844371","url":"https:\/\/maxkosko.com\/zh\/products\/tile-crack-prevention-underlayment-mat","provider":"MAXKOSKO","version":"1.0","type":"link"}