Hi all,
I heard that after May we need to have 6 start energy rating for all the homes.
How do you all are achieving 6 * energy rating.
Please advice
Thanks in advance
Srini
Browse Forums Building A New House Re: 6 * rating 2Apr 28, 2011 11:37 pm Double glazing, but be careful, your builder may only doubleglaze one window to achieve that! And external wall insulation...1000 bucks for 22sq house for r2.0 bats, totally worth it! Ours will be 7 star, but it also is dependant on orientation of the house, (which you cant do anything about due to your block) window coverings, ie curtains which we will get after There are some better posters on here who will advise you better, but this is just from little ol' me and my 7 star house lol! Pos Re: 6 * rating 3Apr 28, 2011 11:40 pm No idea but we have 6 star already. Is this a state-wide building regulation or just in the state you are in? Re: 6 * rating 6Apr 29, 2011 12:00 am Good orientation and reducing window size on south facing walls should do it for a new house The Harder You Try - the Luckier You Get ! Web site http://www.anewhouse.com.au Informative, Amusing, and Opinionated Blog - Over 600 posts on all aspects of building a new house. Re: 6 * rating 8Apr 29, 2011 11:38 am Mine has no double glazed windows and my windows (South size) are huge (almost full wall height and takes up almost the whole horizontally). On the Northern side, it's mostly half size windows. However, i got 6 stars! Maybe the insulation batts made a big difference. Re: 6 * rating 9Apr 29, 2011 12:36 pm The energy rating for ones house is dependent on the following factors:- 1. Orientation of the house. 2. Insulation used in internal walls and it's type. 3. Windows size and double glazing helps a lot. 4. Placement of all the windows throughout the house so that it helps well in cross ventilation. My house has got an energy rating of 7.5. With all of the above and in addition to that I have gas boosted solar hot water. Heating is through gas. Recycle water ( it is mandatory in my estate). I got 9feet ceiling and ceiling fans installed in the house which consumes less electricity as compared to any other cooling device and also does not give out any gases bad for the environment. My roof pitch is also 25.5 degree. Hope this points help Re: 6 * rating 10Apr 29, 2011 12:43 pm Something that a lot of builders in Perth are looking at is a product called Permicav http://www.kingspaninsulation.com.au/Pr ... rview.aspx Its looking like the most cost efficient way to do it, the only 2 possible problems are 1) Getting your Brickies (possibly the most sensitive trade around) to install it 2) Storing it on site, as a roll takes up a fair amount of space. Basically, the product is permiated, so it won't allow condensation transfur (it can "breathe") and it will increase the "R" value of your external walls from 0.6 to 2.1. Estimates at saving a possible 10% on your energy bill. Thats all that I really know about the product. One thing is for sure... The cost WILL be passed onto the client, however we all will benefit in the long run. viewtopic.php?f=31&t=46664 Building in Baldivis, Western Australia. First home, with Impressions. Would love it if you were to stop by some time! Re: 6 * rating 13Apr 29, 2011 5:03 pm The product I linked above isn't really "aircell" though. It is done by the same people, however as the product is now being used in cavities, it needs to be "permiable" or, have little holes in it in order to allow the product to breathe. Aircell doesn't allow that, because it is litterally pockets of air on a sheet. For that reason, while is does have a similar effect, it won't allow moisture transfur, which can potentially damage internal walls/plaster/etc. viewtopic.php?f=31&t=46664 Building in Baldivis, Western Australia. First home, with Impressions. Would love it if you were to stop by some time! Re: 6 * rating 14Apr 29, 2011 8:28 pm To achieve 6* we have... Double glazed windows throughout 600mm eaves Insulation throughout - R3.5 to ceilings, R2.0 to external walls & R1.5 to internal walls 50mm blanket insulation under roof sheets Building our custom design "Dream Home" Follow my Build - viewtopic.php?f=31&t=46820 Contract Signed - 28/04/11 Siteworks Commenced - 20/06/11 Re: 6 * rating 15Apr 29, 2011 10:59 pm Gees, I reckon that should be higher than 6!! That's amazing. You know, when we got our rating back, they didn't make note of the double glazing and the orientation of the house was incorrect, and the forgot the 2.0 batts externally. We had to resubmit it twice, as the rater forgot the double glazing again! So we went from 6 to 7 stars when all the errors were corrected. they had all the info supplied, they just didn't look at it!!! Re: 6 * rating 16May 16, 2011 5:06 pm There was an article in The Age on the weekend (Sundays Age 15th May) where they some guy using a thermal camera was able to show that despite houses being designed for six star rating, because of the way insulation etc was installed (not properly, gaps left and so on) the real life star rating of the homes were well below six stars. Makes you wonder. Re: 6 * rating 17May 16, 2011 5:24 pm We have 600mm eaves, but due to us extending our alfresco out 2m, we only got a 5.4* rating because there is not as much light going into the living area.. Lucky they haven't brought it in yet! Re: 6 * rating 19May 16, 2011 6:30 pm http://www.nathers.gov.au/eer/index.html What is rated? A dwelling can be rated before or after it is built. The rating depends on: the layout of the home the construction of its roof, walls, windows and floor the orientation of windows and shading to the sun's path and local breezes how well these suit the local climate. Energy consumption by hot water systems, lights or household appliances is not part of the rating because those fittings are usually replaced several times during the life of the building. Matt's Brando: viewtopic.php?f=31&t=46340 Started March 30th 2011 PCI July 15th 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 1567 Versaloc is a mortarless besser block system that still needs a properly engineered footing. If you just do a 400x200 footing it will fail in time. At 17m long you need it… 1 18633 My daughter and son in law are about to start building, they are having a 600mm induction cook top and 900mm oven. It's personal preferance 5 11402 |