Browse Forums Heating, Cooling & Insulation Re: is insulation on a new build mandatory? 2Feb 11, 2016 1:51 pm Peter Clarkson - AusDesign Australia www.ausdesign.com.au This information is intended to provide general information only. It does not purport to be a comprehensive advice. Re: is insulation on a new build mandatory? 5Feb 11, 2016 2:36 pm Peter Clarkson - AusDesign Australia www.ausdesign.com.au This information is intended to provide general information only. It does not purport to be a comprehensive advice. Re: is insulation on a new build mandatory? 10Feb 25, 2016 2:34 pm Peter Clarkson - AusDesign Australia www.ausdesign.com.au This information is intended to provide general information only. It does not purport to be a comprehensive advice. Re: is insulation on a new build mandatory? 11Feb 25, 2016 5:27 pm Foremost Building Expert in Australia,assisting with building problems/disputes, building stage inspections,pre-contract review advice for peace of mind 200 blogs http://www.buildingexpert.net.au/blog Re: is insulation on a new build mandatory? 13Feb 25, 2016 9:11 pm Foremost Building Expert in Australia,assisting with building problems/disputes, building stage inspections,pre-contract review advice for peace of mind 200 blogs http://www.buildingexpert.net.au/blog Re: is insulation on a new build mandatory? 15Feb 26, 2016 8:48 am Peter Clarkson - AusDesign Australia www.ausdesign.com.au This information is intended to provide general information only. It does not purport to be a comprehensive advice. Re: is insulation on a new build mandatory? 18Feb 28, 2016 10:12 am Building Services Engineer Renovating our 1960's modernist home in Brisbane https://forum.homeone.com.au/viewtopic.php?f=53&t=82091 Re: is insulation on a new build mandatory? 20Feb 29, 2016 12:24 pm Joynz The direction of the silver side... This depends on the product. Some have low emittance on both sides, and some only on one side. If it has a low emittance surface on the outside, it is usually dulled to avoid blinding the bricklayers during construction, whereas for inward-facing they usually have a straight foil. The main thing is that for a low emittance surface to work, it needs an air gap next to it. So for brick-veneer, the most practical solution is to fill the frames with R2.5 batts, and not bother with a low-emittance surface on the inside, but instead use the outer surface into the cavity void as the radiant heat block. With one low-emittance surface on the outside operating against the cavity, you still reduce radiated heat transfer in both directions. Inbound heat is reflected, and outbound heat is also reduced as the low-emittance surface doesn't emit as much radiated heat when the inside heats up. This is why downward-facing foil works in roofs: as it stops the heat being radiated downward, but upward-facing stops working once dust settles on it. The only product I found that was vapour permeable and also had a low-emittance outside surface was HardieWrap, but presumably there would be others that do this. Back to the original topic, having the double-sided foil wrap is something of a substitute for having bulk insulation, so perhaps OP has this as a means of meeting the energy rating requirements. Hey guys building a new place through a volume builder and just wondering if i should complain to the site supervisor as we just had plasterboard installed. Looks like… 0 11853 |