Browse Forums Heating, Cooling & Insulation 1 Sep 13, 2013 10:39 am Hi All I recently received my house rating and it came in at 5.7 (6 stars are needed) then when it was explained that it would be having double glazing the rating went to 6.2. I asked the builder how it would have been dealt with if I were not going with double glazing and he explained that the double brick cavity would be filled with a dry insulation. My question is around whether or not there is any major disadvantages of putting the insulation in as well as the cost is only around 3K. From what I understand it would make the house essentially like an esky which has to help with heating and cooling. Would love to leverage the thoughts and advice from those more learned that myself. Thanks in advance for you feedback. Cheers Mark Re: 6 Star Rating and Insulation 2Sep 13, 2013 11:00 am The energy rating report details overall heating & cooling rates. It is a case of inputting the different insulation scenarios, getting a report and then comparing the cost of 'upgrading' against the $ savings in electricity usage. 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: 6 Star Rating and Insulation 3Sep 13, 2013 11:02 am There aren't any disadvantages to adding wall insulation that I know of. We added double glazing and soundproof wall batts to our build to improve noise reduction and reduce our heating bills. The cost isn't huge but now we've moved in we are finding it makes a pretty big difference and are really glad we did it. HD Re: 6 Star Rating and Insulation 4Sep 16, 2013 12:46 pm As per what Peter has already said - just do your homework regarding cost vs gain. One thing I'd like to mention is that you want to be sure if you go down the insulated cavity route is that the product that is installed doesn't let water bridge the cavity. There are quite a few different types, some a lot better than others. Stewie Re: 6 Star Rating and Insulation 5Mar 05, 2014 3:33 pm I think it is very strange that you are getting double glazing on a double brick wall house but no wall insulation. The extra cost of the double glazing over single glazing versus the additional heat retention is way higher than the additional heat retention (or prevention) of wall insulation. You should really look into wall insulation, the pay back in heating and cooling would be huge for just a modest amount, far better than double glazing over single glazing IMO. But do both if you can. Re: 6 Star Rating and Insulation 6Mar 06, 2014 2:15 pm Hi Steph I had thought the same however I have concerns of the wall insulation taking on moisture. I think there must be blow in insulation that is moisture resistant. I will ask the builder. Hehe I guess another few thou is neither here nor there. Cheers Mark Re: 6 Star Rating and Insulation 7Mar 06, 2014 3:19 pm The only effective type of insulation in a brick cavity situation is a product similar to foilboard which is fixed to the inner skin leaving a cavity (air space) to the outer skin. 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: 6 Star Rating and Insulation 8Mar 06, 2014 3:37 pm Hey Ausdesign. Do you have the name if this product and approx cost. I suspect it would need to be pinned to the inside of the cavity. Post or pm me the details and I will do the research. Cheers Mark Re: 6 Star Rating and Insulation 9Mar 06, 2014 3:54 pm There are several in the market providing expanded or extruded polystyrene type insulation for this type of situation. 'Foilboard' is one. 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: 6 Star Rating and Insulation 11Mar 07, 2014 9:59 am As an add-on to what Peter is saying. Something like Foilboard gives you increased insulation but also ( depending on how wide the cavity is - usually 50mm ) lets you run cables post-build if you need to. Some other insulation like the denser blown in stuff would make it harder to do this. Stewie 10 years ago was a different software than we use now. it has had a lot of changes over the past years. Improvments to the software and changes to how Nathers models need… 8 1548 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 11279 1000000% definitely add insulation. I have in my home and it makes a big difference minimising sound transfer. Insulation is pretty cheap and definitely worth it 2 6211 |