{"title":"ITP","description":"\u003cp\u003eITP is a UK manufacturer supplying two complementary product families to the construction industry. The Powerbase range covers below-ground applications, providing ground gas protection and low permeability waterproofing membranes for use under floor slabs and in substructure applications. Products in the Powerbase range are tested to BS 8485 and BS EN 13967 and are available in options including the VOC membrane, Low Perm and Multigas variants to suit different gas risk classifications.\u003cbr\u003eThe Powerlon UltraPerm range covers above-ground applications, providing high-performance thermally bonded composite breather membranes for pitched roof and timber frame wall construction. Available in Standard and Premium grades, UltraPerm membranes offer W1 rated water resistance, excellent water vapour permeability and good UV stability, and are BBA and CE certified to BS 5534:2014+A2:2018 for all wind zones 1-5. Both product families reflect ITP's focus on technically robust, well-supported products for demanding construction environments. For further information or pricing, call our team on 03300 55 32 02.\u003cbr\u003e\u003c\/p\u003e","products":[{"product_id":"powerbase-voc-membrane","title":"Powerbase VOC Membrane","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePowerbase VOC is an innovative multilayered barrier membrane comprising protective polymeric layers on both sides of a hydrocarbon and chemical resistant inner core. It provides exceptional resistance to volatile organic compounds (VOCs) and harmful gases including hydrocarbons, methane, radon and carbon dioxide, making it the specification choice for developments on brownfield sites or contaminated land where protection against a broad spectrum of toxic vapours and gases is required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eIndependently tested to ISO 15105-2 and compliant with BS 8485:2015+A1:2019. Supplied in extra-wide 3m x 50m rolls, offering labour savings on site due to fewer overlaps required compared to standard width membranes. Also functions as a damp proof membrane.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eProtection against VOCs, hydrocarbons, methane, radon and CO2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSpecifically designed for brownfield and contaminated land developments\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSupplied in an extra wide 3m roll \u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eMultilayered barrier with hydrocarbon and chemical resistant inner core\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePOWERBASE VOC membranes are joined by conventional thermal (hot air\/wedge) welding equipment to provide overlapped seams for optimum barrier integrity.\u003c\/li\u003e\n\u003cli\u003e The membranes can be overlapped and joined using POWERBOND sealing and jointing self-adhesive tapes.\u003c\/li\u003e\n\u003cli\u003eEnsure no risk of puncture or abrasion on surface before laying membrane \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ITP","offers":[{"title":"Default Title","offer_id":57398957015372,"sku":"BM06270","price":878.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/itp-powerbase-voc-membrane-1234664935.jpg?v=1777369633"},{"product_id":"powerbase-low-perm","title":"Powerbase Low Perm","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eLow Perm is a robust 500 micron gas barrier membrane designed to protect buildings against radon and low levels of methane and carbon dioxide. Independently tested to ISO 15105-1, it achieves excellent permeation resistance across all three gases, with permeation rates of 216 ml\/m²\/day for methane, 952 ml\/m²\/day for CO2 and 7.2 x 10⁻¹² m²\/s for radon, making it a reliable choice for sites where basic gas protection measures are required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBBA certified and compliant with NHBC gas protection measures for Green and Amber 1 sites. Also provides damp proof membrane protection. Yellow in colour for easy site identification. Supplied in 4m x 20m rolls.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cb\u003eImportant note; \u003c\/b\u003ewhere higher levels of methane or CO2 protection are required, or where VOC or hydrocarbon protection is needed, Powerbase Multigas or Powerbase VOC should be specified instead.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e500 micron gas barrier membrane for radon and low-level methane and CO2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ITP","offers":[{"title":"Default Title","offer_id":57399017308492,"sku":"BM06271","price":87.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/itp-powerbase-low-perm-1234677229.jpg?v=1777376910"},{"product_id":"powerbase-multigas","title":"Powerbase Multigas","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePowerbase Multigas is a premium multilayer reinforced LDPE gas barrier membrane engineered to provide durable and reliable protection against radon, methane and carbon dioxide for buildings on sites with moderate to high gas risk. The membrane has high tear and impact resistance and also provides damp proof membrane protection. Green\/silver in colour. CE marked. Supplied in 2m x 50m rolls.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePowerbase Multigas 300 is independently tested to ISO 15105-1 and compliant with BS 8485:2015, achieving a methane permeation rate of 0.07 ml\/m²\/day. NHBC Green, Amber 1 and Amber 2 compliant.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePowerbase Multigas 500 is the higher specification grade, BBA certified and compliant with BS 8485:2015+A1:2019. NHBC Green, Amber 1 and Amber 2 compliant. CE marked.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePremium multilayer reinforced LDPE gas barrier membrane\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eProtection against radon, methane and carbon dioxide\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eMethane permeation 0.07 ml\/m²\/day\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNHBC Green, Amber 1 and Amber 2 compliant\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eAlso provides damp proof membrane protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCE marked\u003c\/li\u003e\n\u003cli\u003eMultigas 300, independently tested to ISO 15105-1, BS 8485:2015 compliant\u003c\/li\u003e\n\u003cli\u003eMultigas 500, BBA certified, BS 8485:2015+A1:2019 compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e","brand":"ITP","offers":[{"title":"Multigas 300","offer_id":57399103062348,"sku":"BM06272","price":259.9,"currency_code":"GBP","in_stock":true},{"title":"Multigas 500","offer_id":57399103095116,"sku":"BM06273","price":328.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/itp-powerbase-multigas-1234677226.jpg?v=1777376893"},{"product_id":"powerlon-ultraperm-standard","title":"Powerlon Ultraperm Standard","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePowerlon UltraPerm Standard is a 115gsm thermally bonded composite breather membrane comprising two layers of non-woven polypropylene with a microporous film between them. This construction provides exceptional water vapour permeability, allowing moisture to escape from within the building structure, while the hydrophobic outer surface repels wind-driven rain and moisture ingress. Good UV stability allows the membrane to remain unprotected for up to two months during installation, though best practice is to install tiles or slates as soon as possible.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBBA and CE certified for use in all pitched roof types including warm and cold, supported and unsupported, ventilated and unventilated roofs, and for timber frame wall applications. Fully tested to BS 5534:2014+A2:2018 for all wind zones 1-5. W1 water resistance rating. Each roll is supplied with detailed installation instructions and a colour-coded geographical suitability guide per wind zone to help specify the correct grade for the location and exposure. Pre-printed marking lines for roof pitch and overlaps are included for both supported and unsupported roof applications, making installation quicker and more accurate on site. Use Powerbond Acrylic Tape to seal overlaps. Install with the printed side facing outwards.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe mid-range grade in the UltraPerm range at 115gsm, UltraPerm Standard is suitable for standard to moderately exposed locations across most wind zones. For more exposed or higher wind zone locations refer to UltraPerm Premium or Max.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBBA and CE certified for roofs and walls\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eExceptional water vapour permeability\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eHigh tensile strength and nail tear resistance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePre-printed marking lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eColour-coded geographical suitability guide included\u003c\/li\u003e\n\u003cli\u003eW1 water resistance\u003c\/li\u003e\n\u003cli\u003eFully tested to BS 5534:2014+A2:2018 zones 1-5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ITP","offers":[{"title":"1m","offer_id":57401522520396,"sku":"BM06274","price":39.29,"currency_code":"GBP","in_stock":true},{"title":"1.5m","offer_id":57401522553164,"sku":"BM06275","price":45.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/itp-powerlon-ultraperm-standard-1234711403.jpg?v=1777391253"},{"product_id":"powerlon-ultraperm-premium","title":"Powerlon Ultraperm Premium","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePowerlon UltraPerm Premium is a 135gsm thermally bonded composite breather membrane comprising two layers of non-woven polypropylene with a microporous film between them. This construction provides exceptional water vapour permeability, allowing moisture to escape from within the building structure, while the hydrophobic outer surface repels wind-driven rain and moisture ingress. Good UV stability allows the membrane to remain unprotected for up to two months during installation, though best practice is to install tiles or slates as soon as possible.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBBA and CE certified for use in all pitched roof types including warm and cold, supported and unsupported, ventilated and unventilated roofs, and for timber frame wall applications. Fully tested to BS 5534:2014+A2:2018 for all wind zones 1-5. W1 water resistance rating. Each roll is supplied with detailed installation instructions and a colour-coded geographical suitability guide per wind zone to help specify the correct grade for the location and exposure. Pre-printed marking lines for roof pitch and overlaps are included for both supported and unsupported roof applications, making installation quicker and more accurate on site. Use Powerbond Acrylic Tape to seal overlaps. Install with the printed side facing outwards.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eAt 135gsm, UltraPerm Premium is a higher specification than the Standard grade and is suited to more exposed locations and higher wind zones. For the highest specification option refer to UltraPerm Max.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBenefits\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBBA and CE certified for roofs and walls\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eExceptional water vapour permeability\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eGood UV stability\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eHigher specification than Standard grade, suited to more exposed locations\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eHigh tensile strength and nail tear resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eGood to know \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eColour-coded geographical suitability guide included\u003c\/li\u003e\n\u003cli\u003eFully tested to BS 5534:2014+A2:2018 zones 1-5\u003c\/li\u003e\n\u003cli\u003e135gsm \u003c\/li\u003e\n\u003cli\u003eW1 water resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ITP","offers":[{"title":"1m","offer_id":57401715294540,"sku":"BM06607","price":52.91,"currency_code":"GBP","in_stock":true},{"title":"1.5m","offer_id":57401715327308,"sku":"BM06608","price":79.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/itp-powerlon-ultraperm-premium-1234711402.jpg?v=1777391235"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/collections\/ITP_Logo_-_resize.png?v=1777995528","url":"https:\/\/www.constructionsuppliesuk.co.uk\/collections\/itp.oembed","provider":"Construction Supplies UK","version":"1.0","type":"link"}