Browse Forums Building A New House Re: fixed site cost 41Jan 20, 2014 11:00 am For those that haven't got them on the roof yet, take a look at the solar powered fans that suck more heat out of the roof than a whirlybird can. Owner Building at Jimboomba Woods in Logan City Qld. Blog : http://bandlnewhomebuild.blogspot.com H1 thread : viewtopic.php?f=38&t=68283 . Re: fixed site cost 42Jan 20, 2014 11:19 am Not sure if volume builders will allow us to use different ventilator from their standard range. Re: fixed site cost 43Jan 20, 2014 12:20 pm I have just been looking into the solar powered ones, they seem to be the way to go! Mirz best to do it after hand over, they arent overly expensive and they are 15 times more effective than 1 wirlybird from what I have read. Just not to sure on the costs, there are some on ebay from around $299 Re: fixed site cost 44Jan 20, 2014 12:39 pm That would be the way to go. Our builder is charging $345 each whirlybird for colorbond roof. Though one is included. Re: fixed site cost 45Jan 20, 2014 12:45 pm Yea I didnt get any, I was regretting it, but now I definitely think the solar ventilation is the way to go! I am also going to be looking into getting a solar powered Split cooling system. Just yet to find out on the intial cost, but the running costs will be a lot lower! Re: fixed site cost 47Jan 20, 2014 1:15 pm I think I'd only bother with a solar/electric vent if I had a dark roof with poor insulation, as it is probably cheaper than re-insulating. As I have a well insulated, light coloured roof I think the whirlybirds are ample. Re: fixed site cost 48Jan 20, 2014 1:20 pm I have a black roof =\ but the batts in the roof are 6.0 and no wirlybirds not to sure on what the numbers mean in regards to thickness and so on Re: fixed site cost 49Jan 20, 2014 1:26 pm lol i also have black tiles for my roof! but had to upgrade the insulation: 2.5 to wall batts and 5.0 for ceiling... wonder if it makes any difference? Second Build, this time with Carlisle 2016, can't wait! Beckham: viewtopic.php?f=31&t=67280 Canterbury: viewtopic.php?f=31&t=81175 Re: fixed site cost 50Jan 20, 2014 1:29 pm stayxtrue I have just been looking into the solar powered ones, they seem to be the way to go! Mirz best to do it after hand over, they arent overly expensive and they are 15 times more effective than 1 wirlybird from what I have read. Just not to sure on the costs, there are some on ebay from around $299 moving 15 times more air doesn't necessarily make them 15 times as effective as they can only actually cool the roof down to, at best, the temperature of the air that comes in to replace the air leaving. Depending on the pitch of the roof, the roofing materials/insulation and the ambient air temperature it may be slightly more effective in some conditions, a lot more effective in some others, and no appreciable difference in other conditions too. I would guess there are more than likely several situations where they are heaps better, but equally as many where they aren't really worth the expense. I certainly don't think you can go wrong installing them, as all roof ventilation is good! It's just whether they are worth the expense compared to whirlybirds or other vents, each situation is different. If you have a dark, tiled roof that will store a lot of heat it might be a good thing, a light coloured colourbond roof, maybe not worth it. In the same way I don't need thermal underwear in winter, it doesn't get cold enough here. But if I buy it, and wear it, I will surely be comfy on a cold day, but I would probably be just as comfy throwing on a jumper. Re: fixed site cost 51Jan 20, 2014 1:31 pm stayxtrue I have a black roof =\ but the batts in the roof are 6.0 and no wirlybirds not to sure on what the numbers mean in regards to thickness and so on I'm pretty sure the bigger the number the more they insulate. They don't nessesarily have to be any thicker, they can be a different material. Re: fixed site cost 52Jan 20, 2014 9:30 pm mirz That would be the way to go. Our builder is charging $345 each whirlybird for colorbond roof. WOW !!!!! ... last time I bought one a couple of years ago it cost me around just $60.... add on half an hour labour for the person putting the colourbond roof, and it's still grossly overpriced. The solar ones are available at Masters for around $249 https://www.masters.com.au/product/9000 ... ventilator or at Mitre 10 for $299 http://shop.mitre10.com.au/solafan-sola ... -roof.html I prefer the ones at Mitre 10 myself, and will probably put 2 or 3 up on my build. They all take the same time to install as a standard whirlybird. Owner Building at Jimboomba Woods in Logan City Qld. Blog : http://bandlnewhomebuild.blogspot.com H1 thread : viewtopic.php?f=38&t=68283 . Re: fixed site cost 53Jan 29, 2014 2:59 pm Today received soil report, and according tho this report site is classified as "P". it recommends engineer designed Rigid Slab. it also reads "The perimeter slab beam requires strengthening due to the presence of deep Clays." it states "site is on the north west side of the street and is virtually flat. Site drainage is poor. The nature soil types are mainly Clay, the local geology being mainly Quaternary Basalts. The Rigid Slab design parameters are as follows: Design for a "structural spanning capacity" over an area of 1500mm in diameter at any location under the slab. Design for a high (H2) soil profile reactivity. Design for a min total surface movement of 60-75mm. so what this all above means? i thought block is totally flat, and no trees around, so it should be a normal site. i'm not sure in this case my FIXED SITE cost will still work, and builder will still honor that. or do you think builder will jack up this fixed cost after looking at this soil report? Re: fixed site cost 54Jan 29, 2014 3:43 pm look at your site cost, there will be a few that say note. If you look at these then you will notice that they can infact jack up the price on you. We were told this at tender due to our soil test not yet coming back. So you could very well be asked to pay some extra costs. But they will go through this with you at tender! When is your tender appointment? Re: fixed site cost 55Jan 29, 2014 4:00 pm I have emailed our sales and admin to investigate this. Our tender is on valentines day Re: fixed site cost 56Jan 29, 2014 4:06 pm oh Nice and romantic haha!! well all the best with it, extra costs are always a massive blow!! Re: fixed site cost 58Jan 30, 2014 3:03 pm Her Mirz, Our soil report came back a "P" as well but due to other factors they downgraded it to "H2" and expects builder to either use a rigid raft slab or we can also get away with using waffle raft slab (which is also known as waffle pod) which is what Henley is using. Just hoping they covered all the other areas that needed to be factored in. Thank goodness Henley is not charging you extra because of it! A "P" class! Pretty funny since the sales guy at the office said it had compactation report of A grade!! He completely BS his way through!! Second Build, this time with Carlisle 2016, can't wait! Beckham: viewtopic.php?f=31&t=67280 Canterbury: viewtopic.php?f=31&t=81175 Re: fixed site cost 59Jan 30, 2014 3:50 pm from what I understand that compaction report means nothing!! Our block had a 102% compact report, however because its "Fill" its not really able to be built on which is why they give you a "P" rating. with ours they just cut out the site so that it was on the clay and in all honesty this wasnt that bad at all! I think we may need a smallish retaining wall on one side when the fence is being built, but then again I am unsure of how the neighbour will be cutting their site. I am hoping that they start soon as I would also like to know if their fence is on the boundary line so I dont waste money on that extra piece of fence Re: fixed site cost 60Jan 30, 2014 7:56 pm Can't you contact neighbors in regards to fencing? They should be able to confirm whether they have plans to hit boundary. I'm so glad to know that Henley has confirmed fixed site cost is indeed fixed. My main worry was all those hidden clauses in small prints. Thank you so much everyone. This all makes a lot of sense. I guess when you talk to a builder who butters up everything to look very polished, you get to start believing… 7 17516 So AFAIk the outcomes of the BAL ratings form part of a clause that allows them to pass these costs on to you. However the more relevant detail is how did it go from 19… 1 9142 We were lucky in that our old house was so small (86 square metres) compared to the new house, they were able to take enough readings around the old backyard house before… 8 37085 |