{"product_id":"green-mineral-medium-shed-felt","title":"Green Mineral Medium Shed Felt Roll","description":"\u003cp\u003eGreen mineral shed felt is a glass fibre based, oxidised roofing membrane finished with a green slate mineral surface. Designed for apex and pent roofed sheds, garden buildings and animal shelters, it provides reliable waterproofing and meets BS EN 13707:2013 standards. Available in 5 m and 10 m rolls.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eGlass fibre based oxidised bitumen membrane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTreatment\u003c\/td\u003e\n\u003ctd\u003eOxidised bitumen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrade\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eGreen slate mineral upper surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLengths\u003c\/td\u003e\n\u003ctd\u003e5 metre roll (approx. 10 kg), 10 metre roll (approx. 20 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eBS EN 13707:2013, CE marked - FPC Certificate 0836-CPR-13\/F049\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat it's used for\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWaterproofing apex and pent roofed garden sheds\u003c\/li\u003e\n\u003cli\u003eRoofing summerhouses, workshops and garden rooms\u003c\/li\u003e\n\u003cli\u003eCovering animal shelters, kennels and poultry housing\u003c\/li\u003e\n\u003cli\u003eRe-felting existing outbuilding roofs where the original felt has cracked or lifted\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitting and handling\u003c\/h2\u003e\u003cp\u003eFor best results, fix over a suitable timber or OSB substrate, laying a compatible underlay first and nailing it firmly before the mineral felt goes on top. Secure the felt mechanically using galvanised clout nails and maintain a minimum 75 mm lap at all joints, sealing each lap thoroughly with felt adhesive to achieve a weathertight finish. Store rolls flat and dry before installation, and avoid working in temperatures below 5 degrees Celsius as cold conditions make the felt brittle and harder to lay cleanly.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between light, medium and heavy shed felt?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe grade refers to the weight and thickness of the felt. Medium grade offers a practical balance between cost and durability for most domestic garden buildings. Heavy grade is better suited to structures with longer spans or roofs exposed to harsh weather, while light grade is typically used only on very small, sheltered buildings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need felt adhesive as well as clout nails?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes. Clout nails hold the felt to the substrate, but the laps between sheets must be sealed with felt adhesive to stop water tracking underneath at the overlaps. Using both together is the correct method and is required to achieve a weathertight finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many metres of felt do I need for a standard garden shed?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt depends on your shed dimensions and roof type. As a rough guide, a 6 ft x 4 ft apex shed typically requires around 4 to 5 metres once laps are accounted for, making the 5 m roll sufficient for most small sheds. Larger sheds, or those with separate roof sections, usually need the 10 m roll.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the difference between light, medium and heavy shed felt?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The grade refers to the weight and thickness of the felt. Medium grade offers a practical balance between cost and durability for most domestic garden buildings. Heavy grade is better suited to structures with longer spans or roofs exposed to harsh weather, while light grade is typically used only on very small, sheltered buildings.\"}},{\"@type\":\"Question\",\"name\":\"Do I need felt adhesive as well as clout nails?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Clout nails hold the felt to the substrate, but the laps between sheets must be sealed with felt adhesive to stop water tracking underneath at the overlaps. Using both together is the correct method and is required to achieve a weathertight finish.\"}},{\"@type\":\"Question\",\"name\":\"How many metres of felt do I need for a standard garden shed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It depends on your shed dimensions and roof type. As a rough guide, a 6 ft x 4 ft apex shed typically requires around 4 to 5 metres once laps are accounted for, making the 5 m roll sufficient for most small sheds. Larger sheds, or those with separate roof sections, usually need the 10 m roll.\"}}]}\u003c\/script\u003e\u003cp\u003eIf you are re-roofing a shed, you may also need a new deck to felt onto. Nottage Timber Merchants stocks \u003ca href=\"\/collections\/osb\"\u003eOSB sheets\u003c\/a\u003e suitable for shed roofing, available for collection from our Bridgend yard or on next-day delivery across the South Wales area.\u003c\/p\u003e","brand":"Rose Roofing","offers":[{"title":"5 Meter Roll \/ 10kg","offer_id":52578564768081,"sku":"L14208","price":29.42,"currency_code":"GBP","in_stock":false},{"title":"10 Meter Roll \/ 20kg","offer_id":52578564800849,"sku":"L14207","price":46.87,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/1467\/1697\/files\/rose-roofing-green-mineral-medium-shed-felt__92064.1721255471.1280.1280.jpg?v=1765369820","url":"https:\/\/www.timberonline.co.uk\/products\/green-mineral-medium-shed-felt","provider":"Nottage Timber Merchants","version":"1.0","type":"link"}