{"product_id":"powerlon-ultraperm-max","title":"Powerlon Ultraperm Max","description":"\u003ch2 data-section-id=\"feek5r\" data-start=\"0\" data-end=\"49\" class=\"PDq2pG_selectionAnchorContainer\"\u003eITP ULTRAPERM® Max Breathable Roofing Membrane\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"51\" data-end=\"680\"\u003eITP ULTRAPERM® Max is the highest specification breathable roofing membrane in the ULTRAPERM® range, engineered for demanding pitched roof and timber frame wall applications. Manufactured as a composite membrane with a microporous film laminated between two functional non-woven fabrics, it provides exceptional water vapour permeability while delivering outstanding protection against wind-driven rain and external moisture. Fully compliant with BS 5534, ULTRAPERM® Max helps minimise the risk of interstitial condensation while providing long-lasting protection for modern roof structures.\u003c\/p\u003e\n\u003cp data-start=\"682\" data-end=\"1239\"\u003eWith a heavier 155gsm construction, ULTRAPERM® Max offers the highest mechanical strength within the range, making it ideal for exposed locations and high wind zones. It achieves the highest W1 watertightness classification, features an Sd value of just 0.02m for excellent breathability, and is BBA Certified and Fire Classification Class E. Manufactured under an ISO 9001 quality management system, it provides reliable performance for residential, commercial and timber frame construction projects throughout the UK.\u003c\/p\u003e\n\u003cp data-start=\"682\" data-end=\"1239\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/PowerlonUltrapermMax.jpg?v=1785147511\" alt=\"ULTRAPERM Max roof underlay\"\u003e\u003c\/p\u003e\n\u003chr data-start=\"1241\" data-end=\"1244\"\u003e\n\u003ch3 data-section-id=\"17xbmye\" data-start=\"1246\" data-end=\"1261\"\u003eKey Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1263\" data-end=\"1823\"\u003e\n\u003cli data-section-id=\"jcbzor\" data-start=\"1263\" data-end=\"1338\"\u003eHighest specification breathable roofing membrane in the ULTRAPERM® range\u003c\/li\u003e\n\u003cli data-section-id=\"47s9s4\" data-start=\"1339\" data-end=\"1381\"\u003eSuitable for warm and cold pitched roofs\u003c\/li\u003e\n\u003cli data-section-id=\"7vwgrp\" data-start=\"1382\" data-end=\"1427\"\u003eSuitable for timber frame wall applications\u003c\/li\u003e\n\u003cli data-section-id=\"1610qwp\" data-start=\"1428\" data-end=\"1485\"\u003eHighest mechanical strength for demanding installations\u003c\/li\u003e\n\u003cli data-section-id=\"1xrn28y\" data-start=\"1486\" data-end=\"1531\"\u003eIdeal for exposed sites and high wind zones\u003c\/li\u003e\n\u003cli data-section-id=\"5q9wgc\" data-start=\"1532\" data-end=\"1574\"\u003eHighest W1 watertightness classification\u003c\/li\u003e\n\u003cli data-section-id=\"1wyhvj6\" data-start=\"1575\" data-end=\"1624\"\u003eHigh vapour permeability with Sd value of 0.02m\u003c\/li\u003e\n\u003cli data-section-id=\"moqoyb\" data-start=\"1625\" data-end=\"1665\"\u003eHelps reduce interstitial condensation\u003c\/li\u003e\n\u003cli data-section-id=\"1bgbh71\" data-start=\"1666\" data-end=\"1695\"\u003eFire Classification Class E\u003c\/li\u003e\n\u003cli data-section-id=\"sjsrda\" data-start=\"1696\" data-end=\"1711\"\u003eBBA Certified\u003c\/li\u003e\n\u003cli data-section-id=\"u3p7ld\" data-start=\"1712\" data-end=\"1731\"\u003eBS 5534 compliant\u003c\/li\u003e\n\u003cli data-section-id=\"fn5zal\" data-start=\"1732\" data-end=\"1823\"\u003eAvailable with or without integrated jointing tapes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1825\" data-end=\"1828\"\u003e\n\u003ch3 data-section-id=\"mu966k\" data-start=\"1830\" data-end=\"1845\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1847\" data-end=\"2040\"\u003e\n\u003cli data-section-id=\"131e5y9\" data-start=\"1847\" data-end=\"1867\"\u003eWarm pitched roofs\u003c\/li\u003e\n\u003cli data-section-id=\"1300kto\" data-start=\"1868\" data-end=\"1888\"\u003eCold pitched roofs\u003c\/li\u003e\n\u003cli data-section-id=\"13bpsxc\" data-start=\"1889\" data-end=\"1916\"\u003eTimber frame wall systems\u003c\/li\u003e\n\u003cli data-section-id=\"a82rh8\" data-start=\"1917\" data-end=\"1938\"\u003eHigh wind locations\u003c\/li\u003e\n\u003cli data-section-id=\"rb8tcz\" data-start=\"1939\" data-end=\"1967\"\u003eExposed roof installations\u003c\/li\u003e\n\u003cli data-section-id=\"o6y4zf\" data-start=\"1968\" data-end=\"1989\"\u003eResidential housing\u003c\/li\u003e\n\u003cli data-section-id=\"150i30g\" data-start=\"1990\" data-end=\"2010\"\u003eCommercial roofing\u003c\/li\u003e\n\u003cli data-section-id=\"rf6wum\" data-start=\"2011\" data-end=\"2040\"\u003eRoof refurbishment projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2042\" data-end=\"2045\"\u003e\n\u003ch3 data-section-id=\"1uhri7u\" data-start=\"2047\" data-end=\"2071\"\u003eTechnical Information\u003c\/h3\u003e\n\u003cul data-start=\"2073\" data-end=\"2674\"\u003e\n\u003cli data-section-id=\"1nxwrag\" data-start=\"2073\" data-end=\"2116\"\u003eProduct Type: Breathable roofing membrane\u003c\/li\u003e\n\u003cli data-section-id=\"1nsaj1r\" data-start=\"2117\" data-end=\"2185\"\u003eConstruction: Microporous film laminated between non-woven fabrics\u003c\/li\u003e\n\u003cli data-section-id=\"12g6cll\" data-start=\"2186\" data-end=\"2209\"\u003eGrade: ULTRAPERM® Max\u003c\/li\u003e\n\u003cli data-section-id=\"1kl5n6p\" data-start=\"2210\" data-end=\"2225\"\u003eColour: Green\u003c\/li\u003e\n\u003cli data-section-id=\"tfbzi2\" data-start=\"2226\" data-end=\"2242\"\u003eWeight: 155gsm\u003c\/li\u003e\n\u003cli data-section-id=\"4ygm0i\" data-start=\"2243\" data-end=\"2266\"\u003eRoll Size: 1.5m × 50m\u003c\/li\u003e\n\u003cli data-section-id=\"swdbgh\" data-start=\"2267\" data-end=\"2283\"\u003eCoverage: 75m²\u003c\/li\u003e\n\u003cli data-section-id=\"1nvlhfg\" data-start=\"2284\" data-end=\"2305\"\u003eRoll Weight: 12.2kg\u003c\/li\u003e\n\u003cli data-section-id=\"9oijbg\" data-start=\"2306\" data-end=\"2327\"\u003eWater Tightness: W1\u003c\/li\u003e\n\u003cli data-section-id=\"s7xdmb\" data-start=\"2328\" data-end=\"2371\"\u003eWater Vapour Transmission Sd Value: 0.02m\u003c\/li\u003e\n\u003cli data-section-id=\"qo1o1j\" data-start=\"2372\" data-end=\"2402\"\u003eFire Classification: Class E\u003c\/li\u003e\n\u003cli data-section-id=\"ag435c\" data-start=\"2403\" data-end=\"2447\"\u003eTensile Strength (MD\/CD): 350 \/ 240 N\/50mm\u003c\/li\u003e\n\u003cli data-section-id=\"1jsxzfg\" data-start=\"2448\" data-end=\"2491\"\u003eNail Tear Resistance (MD\/CD): 140 \/ 230 N\u003c\/li\u003e\n\u003cli data-section-id=\"bmiec\" data-start=\"2492\" data-end=\"2532\"\u003eTemperature Resistance: -30°C to +70°C\u003c\/li\u003e\n\u003cli data-section-id=\"12avd2a\" data-start=\"2533\" data-end=\"2558\"\u003eUV Resistance: 3 months\u003c\/li\u003e\n\u003cli data-section-id=\"fvm8rn\" data-start=\"2559\" data-end=\"2591\"\u003eInstallation Standard: BS 5534\u003c\/li\u003e\n\u003cli data-section-id=\"pui0v4\" data-start=\"2592\" data-end=\"2674\"\u003eCertification: BBA Certificate No. 13\/5037\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2676\" data-end=\"2679\"\u003e\n\u003ch3 data-section-id=\"1r8frcv\" data-start=\"2681\" data-end=\"2710\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp data-start=\"2712\" data-end=\"2748\"\u003e\u003cstrong data-start=\"2712\" data-end=\"2748\"\u003eWhat is ULTRAPERM® Max used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2750\" data-end=\"2957\"\u003eULTRAPERM® Max is designed for warm and cold pitched roof constructions and timber frame wall applications where maximum mechanical strength and durability are required.\u003c\/p\u003e\n\u003cp data-start=\"2959\" data-end=\"3035\"\u003e\u003cstrong data-start=\"2959\" data-end=\"3035\"\u003eWhat makes ULTRAPERM® Max different from the other ULTRAPERM® membranes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3037\" data-end=\"3261\"\u003eULTRAPERM® Max is the highest specification membrane in the range, offering the greatest tensile strength and nail tear resistance, making it ideal for exposed sites and high wind zones.\u003c\/p\u003e\n\u003cp data-start=\"3263\" data-end=\"3296\"\u003e\u003cstrong data-start=\"3263\" data-end=\"3296\"\u003eIs ULTRAPERM® Max waterproof?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3298\" data-end=\"3472\"\u003eYes. It achieves the highest \u003cstrong data-start=\"3327\" data-end=\"3333\"\u003eW1\u003c\/strong\u003e classification for water tightness while allowing moisture vapour to escape from the roof structure.\u003c\/p\u003e\n\u003cp data-start=\"3474\" data-end=\"3531\"\u003e\u003cstrong data-start=\"3474\" data-end=\"3531\"\u003eDoes ULTRAPERM® Max comply with UK roofing standards?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3533\" data-end=\"3697\"\u003eYes. ULTRAPERM® Max is BBA Certified and complies with BS 5534:2014+A2 for pitched roofing and vertical cladding applications.\u003c\/p\u003e\n\u003cp data-start=\"3699\" data-end=\"3744\"\u003e\u003cstrong data-start=\"3699\" data-end=\"3744\"\u003eWhat size is ULTRAPERM® Max available in?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3746\" data-end=\"3868\"\u003eULTRAPERM® Max is supplied in a \u003cstrong data-start=\"3778\" data-end=\"3792\"\u003e1.5m × 50m\u003c\/strong\u003e roll, providing \u003cstrong data-start=\"3809\" data-end=\"3817\"\u003e75m²\u003c\/strong\u003e of coverage.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1j75wae\" data-start=\"0\" data-end=\"53\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eDownloads\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3214\" data-end=\"3297\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/ITP_Ultraperm_TDS_R6-5.pdf?v=1785146898\" title=\"Powerlon Ultraperm Max Data Sheet\"\u003eData Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"GCP","offers":[{"title":"1.5m","offer_id":57326439039351,"sku":"ITPULTRAPERMM1.5","price":135.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/PowerlonUltrapermMax.jpg?v=1785147511","url":"https:\/\/clevershieldcoatings.co.uk\/products\/powerlon-ultraperm-max","provider":"Clever Shield - Asset Protection","version":"1.0","type":"link"}