{"product_id":"fletcher-resituff-building-blanket-light-duty","title":"Fletcher Resituff Building Blanket Light Duty Metal Roof Insulation","description":"\u003cp\u003eFletcher Resituff Building Blanket is a light duty roofing blanket for residential metal roofs: 55 mm glasswool with a Material R-value of R1.3, faced on one side with Sisalation Multipurpose LD (431) polyweave reflective foil.\u003c\/p\u003e\n\u003ch3\u003eLight duty: check the span\u003c\/h3\u003e\n\u003cp\u003eFletcher's AS 4200.2 duty table allows Resituff on spans up to 900 mm, supported or not, and up to 1200 mm only with safety mesh or similar underneath. An unsupported span over 900 mm, up to 1200 mm, needs the medium duty \u003ca href=\"\/products\/fletcher-permatuff-building-blanket-medium-duty\"\u003ePermatuff\u003c\/a\u003e. It suits houses and townhouses, not tiled roofs.\u003c\/p\u003e\n\u003ch3\u003eWhat R1.3 means\u003c\/h3\u003e\n\u003cp\u003eR1.3 is the Material R-value of the blanket alone, not a total roof figure. Compression cuts it, so Fletcher recommends a roof spacer where allowable. The foil needs a still air cavity of at least 20 mm to perform thermally. See \u003ca href=\"\/blogs\/blog\/roofing-blanket-r-values\"\u003eroofing blanket R-values\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFire and bushfire\u003c\/h3\u003e\n\u003cp\u003eFletcher states it complies with AS 3959 from BAL-LOW to BAL-40 under metal sheet roofs. The faced blanket cannot be classified to AS 1530.1 as an assembly, so do not use it where non-combustible material is required.\u003c\/p\u003e\n\u003ch3\u003eOrdering and fitting\u003c\/h3\u003e\n\u003cp\u003eSold by the roll, 1200 mm wide: 15 m covers 18 m² and 20 m covers 24 m². Allow about 5% for waste on a simple roof. Lay the foil facing inward and lap it at least 150 mm at every side and end join. Keep the rolls dry before, during and after installation, and take care near wiring and luminaires because the foil is electrically conductive. Full figures are in the table below.\u003c\/p\u003e","brand":"Fletcher Insulation","offers":[{"title":"R1.3, 15 m x 1200 mm x 55 mm (18 m²)","offer_id":67636031488182,"sku":"4020341","price":123.0,"currency_code":"AUD","in_stock":true},{"title":"R1.3, 20 m x 1200 mm x 55 mm (24 m²)","offer_id":67636031520950,"sku":"4020342","price":165.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Permatuff-Building-Blanket-0524-2400x2400-1_6eae07ac-d6cf-468f-a32d-5035a2fe62b0.jpg?v=1791896285","url":"https:\/\/awbm.com.au\/products\/fletcher-resituff-building-blanket-light-duty","provider":"AWBM","version":"1.0","type":"link"}