Browse Forums Heating, Cooling & Insulation Re: Insulation Rating vs Whirly-birds 7Nov 12, 2017 10:13 am arcadelt I'm afraid I don’t know the answer, because it comes down to doing a cost-benefit analysis, and what you can afford. What’s the difference in price of R6.0 or R5.0 insulation over R4.0 versus the cost of buying and installing whirlybirds? Apart from the wood heater, the solutions you are proposing are passive (after initial outlay). The following might help: http://www.yourhome.gov.au/passive-design/design-climate http://www.yourhome.gov.au/passive-design/passive-cooling http://www.yourhome.gov.au/passive-design/insulation I do note that whirlybirds are not mentioned when discussing design for Sydney. Also, remember that whirlybirds work all year round, so any heat you might build up in the winter will be extracted too - just something to think about. see more at hoffmangoldwithporterdavis.wordpress.com 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 2425 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 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 6799 |