{"title":"Waterproofing Membranes","description":"\u003cp\u003eBonded waterproofing and uncoupling membranes for tiled wet areas and floors. Tile sets directly onto them — no separate liner, no mortar bed. Includes KERDI, KERDI-BAND, DITRA, and DITRA-HEAT.\u003c\/p\u003e","products":[{"product_id":"schluter-kerdi-waterproofing-membrane","title":"Schluter KERDI Waterproofing Membrane — 8 mil, cUPC Listed, ICC-ES ESR-2467","description":"\u003cp\u003eSchluter KERDI is the sheet-applied waterproofing membrane that lets a tiled shower be waterproofed and tiled in one continuous system — bond it to the substrate, set tile directly onto it, and the wet area is sealed without a separate liner. Built on a modified-polyethylene (PEVA) core just 8 mil thick, with anchoring fleece on both faces that keys into thin-set mortar, KERDI carries a 0.90-perm vapor rating and meets ANSI A118.10 for bonded waterproof membranes — the spec that matters when an inspector or a GC asks. It is cUPC listed and evaluated by ICC-ES under ESR-2467, so it lands code-compliant on residential and commercial wet-area jobs across the GTA: showers, bathtub surrounds, and residential steam rooms. The 3' 3\" roll handles standard shower walls and floors; the 6' 7\" wide roll covers floor-to-showerhead height in fewer seams for faster production work. Genuine Schluter, stocked at our Scarborough counter for will-call or GTA delivery.\u003c\/p\u003e","brand":"Schluter","offers":[{"title":"3' 3\" \/ 16' 5\"","offer_id":42981551046750,"sku":"KERDI2005M","price":155.01,"currency_code":"CAD","in_stock":true},{"title":"3' 3\" \/ 23'","offer_id":42981551079518,"sku":"KERDI2007M","price":213.57,"currency_code":"CAD","in_stock":true},{"title":"3' 3\" \/ 33'","offer_id":42981551112286,"sku":"KERDI20010M","price":304.49,"currency_code":"CAD","in_stock":true},{"title":"3' 3\" \/ 66'","offer_id":42981551145054,"sku":"KERDI20020M","price":570.51,"currency_code":"CAD","in_stock":true},{"title":"3' 3\" \/ 98' 5\"","offer_id":42981551177822,"sku":"KERDI200","price":805.74,"currency_code":"CAD","in_stock":true},{"title":"6' 7\" \/ 49' 2.5\"","offer_id":42981551210590,"sku":"KERDI20020015M","price":805.74,"currency_code":"CAD","in_stock":true},{"title":"6' 7\" \/ 98' 5\"","offer_id":42981551243358,"sku":"KERDI200200","price":1574.08,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/0073\/8142\/files\/Gemini_Generated_Image_u17yqvu17yqvu17y.png?v=1783467501"},{"product_id":"schluter-kerdi-band-waterproofing-strip","title":"Schluter KERDI-BAND Waterproofing Strip — 4 mil, Seals KERDI \u0026 DITRA Joints","description":"\u003cp\u003eKERDI-BAND is the waterproofing strip that turns a set of separate Schluter membranes into one continuous, water-tight assembly — the detail that decides whether a tiled shower holds or fails at the seams. Used to seal butt joints and floor-to-wall connections across KERDI and DITRA membranes and KERDI-BOARD panels, it carries the same modified-polyethylene base as KERDI membrane but at a slim 4 mil, so overlaps stay flat and never telegraph through the tile. Set into unmodified thin-set and lapped a minimum of two inches over adjoining membrane, the strip bonds tight to inside and outside corners without rounding at the transition, holding the waterproof plane continuous where leaks usually start. For the GTA contractor running a curbless shower or a steam enclosure, it is the unglamorous roll that earns its place on every Schluter wet-area build — bought by the foot on small jobs and by the 984-foot bulk roll when the schedule is full. Genuine Schluter, stocked at our Scarborough counter for will-call or GTA delivery.\u003c\/p\u003e","brand":"Schluter","offers":[{"title":"5\" \/ 16' 5\"","offer_id":42981646237790,"sku":"KEBA1001255M","price":30.46,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ 33'","offer_id":42981646270558,"sku":"KEBA10012510M","price":57.85,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ 98' 5\"","offer_id":42981646303326,"sku":"KEBA100125","price":142.42,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ 984' 3\"","offer_id":42981646336094,"sku":"KEBA100125300","price":1281.77,"currency_code":"CAD","in_stock":true},{"title":"7-1\/4\" \/ 16' 5\"","offer_id":42981646368862,"sku":"KEBA1001855M","price":39.86,"currency_code":"CAD","in_stock":true},{"title":"7-1\/4\" \/ 98' 5\"","offer_id":42981646401630,"sku":"KEBA100185","price":197.87,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ 16' 5\"","offer_id":42981646434398,"sku":"KEBA1002505M","price":48.8,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ 98' 5\"","offer_id":42981646467166,"sku":"KEBA100250","price":254.57,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/0073\/8142\/files\/Gemini_Generated_Image_4u6qit4u6qit4u6q.png?v=1783469825"},{"product_id":"schluter-ditra-uncoupling-membrane","title":"Schluter DITRA Uncoupling Membrane — 1\/8\", Waterproofing, cUPC Listed","description":"\u003cp\u003eTile cracks because the substrate underneath it moves and the tile does not — a slab cures and shrinks, a plywood floor flexes, and the grout lines telegraph every bit of it. Schluter DITRA is the uncoupling membrane that breaks that connection: a polyethylene matting with a grid of dovetailed square cavities and an anchoring fleece laminated to the underside, so thin-set keys mechanically into both the substrate below and the cavities above. Those cutback cavities fill with mortar to form column-like structures that carry heavy loads straight through to the substrate, while the grid absorbs in-plane movement that would otherwise crack tile and grout. At a nominal 1\/8 inch it does four jobs at once — uncoupling, waterproofing, vapor management, and load distribution — over concrete, plywood, OSB, gypsum, existing vinyl, and radiant heated floors, with tile permitted over single-layer plywood on joists spaced up to 19.2 inches. cUPC listed, ICC-ES evaluated under ESR-2467, and compliant with ANSI A118.10. Interior use, dry or wet areas. Genuine Schluter, stocked at our Scarborough counter for will-call or GTA delivery.\u003c\/p\u003e","brand":"Schluter","offers":[{"title":"3' 3\" x 16' 5\" (54 sqft)","offer_id":42990073544798,"sku":"DITRA5M","price":150.48,"currency_code":"CAD","in_stock":true},{"title":"3' 3\" x 45' 9\" (150 sqft)","offer_id":42990073577566,"sku":"DITRA150","price":393.87,"currency_code":"CAD","in_stock":true},{"title":"3' 3\" x 98' 5\" (323 sqft)","offer_id":42990073610334,"sku":"DITRA30M","price":782.25,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/0073\/8142\/files\/f0340234-5d69-11ec-bd35-f6968cef729a.jpg?v=1783636508"},{"product_id":"schluter-ditra-heat-uncoupling-membrane","title":"Schluter DITRA-HEAT Uncoupling Membrane — 5.5 mm, Floor Warming Roll (134.5 sqft)","description":"\u003cp\u003eElectric floor warming usually means pouring self-leveling compound over the cables and waiting a day before a single tile goes down. Schluter DITRA-HEAT skips that entirely: its stud structure is purpose-built so DITRA-HEAT-E-HK heating cables press in between the studs, encapsulated by the membrane itself, and tile is set directly over the top with unmodified thin-set as soon as the cables are placed. Underneath, it is still DITRA — uncoupling that neutralizes the substrate movement that cracks tile and grout, waterproofing that protects moisture-sensitive subfloors, vapor management, and load distribution through column-like mortar structures formed between the studs. At a nominal 1\/4 inch it keeps the assembly low and the transitions to adjacent flooring shallow, and it accepts more than tile: engineered wood, LVT, LVP, WPC, SPC, and laminate all work over it. Cables go only where heat is wanted, so a vanity or a fridge footprint costs nothing to skip. One roll covers 134.5 square feet. Membrane only — cables, thermostat, and sensor sold separately. Genuine Schluter, stocked at our Scarborough counter for will-call or GTA delivery.\u003c\/p\u003e","brand":"Schluter","offers":[{"title":"Default Title","offer_id":42990091173982,"sku":"DH512M","price":458.27,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/0073\/8142\/files\/Gemini_Generated_Image_cl5rkzcl5rkzcl5r.png?v=1783637189"}],"url":"https:\/\/gdbuildingsupply.com\/collections\/waterproofing-membranes.oembed","provider":"Good Day Building Supply Inc.","version":"1.0","type":"link"}