{"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","url":"https:\/\/www.constructionsuppliesuk.co.uk\/products\/powerbase-low-perm","provider":"Construction Supplies UK","version":"1.0","type":"link"}