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91 posts
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Posted 12 Jul 12 12:20 PM
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491 posts
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Posted 12 Jul 12 6:29 PM
For example although this is more in line what it will be like http://www.holzbau-meiberger.at/en/what-we-build/passive-house-7/plusenergiehaus-51/All I want is a warm and healthy home with a natural feel rather than, gib, paint, pink batts and hardie board I want a house built with durable wood which feels and smells like wood rather than pink sticks or green sticks which is not natural wood. There are ways around the treated wood madness. Off course it is all "alternative solution" |
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54 posts
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Posted 15 Jul 12 6:26 PM
I am also evaluating the options of importing the kit home that is performing close to passive hose, but that is not the requirement... A low energy home would do as well... the only problem is all the compliance mess that might come in the way...
Not sure what the authorities have to say about OSB boards... they are widely used all across the globe, so how is it in NZ (don't remember seeing it anywhere)?
The framing could be douglas fir or pine which should be fine with appropriate protection.
I would sort the trusses/rafters here and would probably use Kingspan instead color steel with insulation... one product, easy installation... no chicken wire required...
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491 posts
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Posted 15 Jul 12 7:42 PM
Well if you import a passive house you should get the entire building envelope and then you can source the roof tiles or steel locally and if you like the cladding.
When these houses are put together the (under)roof will be already weathertight before the tiles or steel goes on. This ensures that even if some damage on the outer roof occurs the leak will be detected before any damage is done.
Not sure about trusses in a passive house as they make it damn hard to install the insulation without thermal bridges and installing the airtight membrane over ithe insulation with all the braces in the way can be mission impossible..
One way would be a suspended ceiling with most of the insulation located below the trusses.
Personally I think rafters are the better choice and the insulation can be packed on top to achive a full blanket insulation. Also the rafters make a nice feature inside if exposed and the rooms have a better feel than flat ceilings with all the wasted space above.
The higher ceiling is no problem if the thermal envelope is correctly designed and made.
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54 posts
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Posted 16 Jul 12 2:06 PM
Yes... that was the thinking... I don't like trusses as the space becomes useless for most part anyway... rather good insulated roof on the rafters and sloped ceiling.
But provided I get the walls/wall panels preassembled, I need to get all the approvals before. Do I need to worry about each component separately (like the 150mm framing, then OSB, then insulation) when it comes to approval?
I am building now and found the council to be very reasonable with the European windows and installation method. Found it weird that in all the articles about the first passive house the council was always pictured as a stepping stone.
I have provided ift test reports and compared them to NZ4211 and that was fine... Not sure what they have to say about imported douglas fir that does not have the 3604 stamp on it?
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2 posts
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Posted 20 Jul 12 2:39 PM
This is not the first zero energy house in New Zealand. Zero energy means you are not taking more electricity than you are providing and you have to be rated to claim this. We are going to be rated before this house in Auckland and until we are, we will not claim to be zero energy. And, if we do achieve it, we will still not say we are the 'first' because we are not. Will we become the first zero energy B&B, not sure - maybe. Have spoken to the people involved in this house and reminded them about ethics.
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3 posts
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Posted 20 Jul 12 3:41 PM
The Zero Energy House project is not about being the first. Its not about being the second, third or even the tenth. Its about sharing our experiences of the last three years worth of work to fast track the housing industry into making these types of homes more commonplace. Its about assisting council with making changes to their regulations to make it easier for people to build this types of home (we have been in discussion with Auckland Unitary Plan Team). Its about educating future home builders so that they are aware of the choices available to them. Its about showing people its not that expensive and that it can be done within a budget with clever integrated design.
We would love to hear other people experiences of designing and building zero energy houses and share them alongside ours. The more information like this there is available the easier it is for the next people doing this.
Thank you to everyone who has shared their knowledge/experience on this thread - sorry this isn't adding to that discussion.
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1 posts
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Posted 11 Apr 13 3:25 PM
Hi there. I was wondering how the monitoring & reporting for your Zero Energy B&B is going? I work on the comms side of the ZEH project you commented on. We're getting close to releasing our first round of Zero Energy reports and thought it might be useful to see how another Zero Energy project is getting on. Good to spread the word... Thanks.
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