{"product_id":"r2-5-bradford-optimo-underfloor-batts-90mm","title":"R2.5 Bradford Optimo Underfloor Batts 90mm","description":"\u003cp\u003eR2.5 Bradford Optimo is a dense glasswool batt made specifically for suspended timber floors, at 90 mm.\u003c\/p\u003e\n\u003ch3\u003eSized narrower on purpose\u003c\/h3\u003e\n\u003cp\u003eThe two widths are 415 mm and 565 mm rather than the 430 and 580 of a wall batt. Floor joists are set out at the same nominal centres, but the batt has to sit up between them and stay there, so the fit is tuned differently. Eight batts per pack, covering 3.85 m² and 5.24 m² respectively.\u003c\/p\u003e\n\u003ch3\u003eWhat it does under a floor\u003c\/h3\u003e\n\u003cp\u003eThree things. It cuts heat loss down through the floor. It limits cold air moving up from the sub-floor, which is what people actually feel as a cold floor. And the density gives some acoustic benefit through the floor structure.\u003c\/p\u003e\n\u003ch3\u003eIt needs holding up\u003c\/h3\u003e\n\u003cp\u003eA floor batt is working against gravity, unlike a wall or ceiling batt. Friction fit gets it in place, but Optimo Saddles or Straps are what keep it there over time. Order the fixings with the batts rather than discovering the need later, and see \u003ca href=\"\/products\/bradford-optimo-sub-floor-fixings\"\u003eOptimo sub-floor fixings\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThermal rating declared to AS\/NZS 4859.1 by the manufacturer. Sizes and CSR product codes are in the table below.\u003c\/p\u003e","brand":"CSR Bradford","offers":[{"title":"1160 x 415 mm (8 per pack, 3.85 m²)","offer_id":45351821246646,"sku":"114650","price":61.75,"currency_code":"AUD","in_stock":true},{"title":"1160 x 565 mm (8 per pack, 5.24 m²)","offer_id":45351821279414,"sku":"114692","price":81.7,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/r2-5-bradford-optimo-underfloor-batts.jpg?v=1786564869","url":"https:\/\/awbm.com.au\/products\/r2-5-bradford-optimo-underfloor-batts-90mm","provider":"AWBM","version":"1.0","type":"link"}