{"product_id":"iko-perforated-sand-underlay-3h-20m-3862000","title":"IKO Perforated Sand Underlay (3H) 20m 3862000","description":"\u003cp\u003eThis perforated sand underlay is a loose-laid membrane designed for use as a venting layer in built-up roofing systems. Manufactured with a glass fibre base and coated with oxidised bitumen, it features sand finish on both sides and evenly spaced perforations throughout the roll.\u003c\/p\u003e\u003cp\u003eTypically applied to flat roofs in commercial and domestic projects, it is used where a controlled partial bond to the substrate is required. The underlay assists with venting and bond regulation when installed beneath subsequent fully bonded layers using hot bitumen.\u003c\/p\u003e","brand":"Iko","offers":[{"title":"Default Title","offer_id":53107232080208,"sku":"U0110939","price":84.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/5417\/9408\/files\/e1117dd6832496abfd962bfa61df253a.jpg?v=1780571922","url":"https:\/\/totalsite.supply\/products\/iko-perforated-sand-underlay-3h-20m-3862000","provider":"Total Site Supply UK","version":"1.0","type":"link"}