{"product_id":"r4-1-bradford-gold-ceiling-batts-215mm","title":"R4.1 Bradford Gold Ceiling Batts 215mm","description":"\u003cp\u003eR4.1 Bradford Gold is a non-combustible glasswool ceiling batt at 215 mm thick, the top of the standard Gold ceiling range before the higher density HP batts take over.\u003c\/p\u003e\n\u003ch3\u003eDepth is the thing to check first\u003c\/h3\u003e\n\u003cp\u003eAt 215 mm this batt needs real room above the ceiling. If the roof space pinches down at the eaves, or there is ductwork or a flue running through, check the actual clearance before ordering rather than after. A batt squashed to fit is not delivering R4.1, and at this thickness there is more to lose.\u003c\/p\u003e\n\u003ch3\u003eSizes\u003c\/h3\u003e\n\u003cp\u003eTen batts per pack in both widths at 1160 mm long: 430 mm covering 4.99 m² and 580 mm covering 6.73 m². Coverage per pack drops as the batts get thicker, so a high R spec means more packs for the same ceiling. \u003ca href=\"\/blogs\/blog\/how-much-insulation-do-i-need\"\u003eCoverage per pack explained\u003c\/a\u003e covers the arithmetic.\u003c\/p\u003e\n\u003ch3\u003eOr step across to HP\u003c\/h3\u003e\n\u003cp\u003eIf you want a higher R-value without more depth, the HP batts are higher density and lift the R-value for the same or tighter build-up. \u003ca href=\"\/products\/r5-0-hp-bradford-gold-ceiling-batts-240mm\"\u003eR5.0 HP\u003c\/a\u003e is the next one up. Whether you need it comes down to climate zone and the rest of the build-up, which \u003ca href=\"\/blogs\/blog\/r-value-australian-climate-zones\"\u003eR-value by Australian climate zone\u003c\/a\u003e works through.\u003c\/p\u003e\n\u003ch3\u003eOn site\u003c\/h3\u003e\n\u003cp\u003eFriction fit between the joists, butt the ends, leave no gaps, and keep whatever clearance the downlights and flues require.\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 430 mm (10 per pack, 4.99 m²)","offer_id":45351820230838,"sku":"111716","price":43.7,"currency_code":"AUD","in_stock":true},{"title":"1160 x 580 mm (10 per pack, 6.73 m²)","offer_id":45351820263606,"sku":"111715","price":57.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/r4-1-bradford-gold-ceiling-batts.jpg?v=1786540207","url":"https:\/\/awbm.com.au\/products\/r4-1-bradford-gold-ceiling-batts-215mm","provider":"AWBM","version":"1.0","type":"link"}