[Strawbale] results of sb houses across europe pls

Sebastien Hubert sebastien.hubert at mc2000...
Sun Sep 5 23:38:03 CEST 2010 

Hi Henk,

On the outside it will be wood with ventilation between the agepan and 
the wood.

The earth plastering will be the vapour barier...  this means the 
renders will need to be really perfect (no crack)...  We really take a 
lot precautions to reach a really good air tightness.  I also blow 
cellulose so I know this notion is really important....  We'll do a 
blowerdoor test.  Just to see if it is efficient...

I think other professionals are using earth renders as air tightness 
materials.

Cheers

Seb

Henk Van Aelst wrote:
> Thanks Seb,
>
> What do you place on the agepan. 
>
> Is there no risk of using a wood,- wool/fibre panel at the outside without a
> vapour barier at the inside?
>
> Henk
>
>
> ECOLOGISCH  ARCHITECTENBUREAU  HENK VAN AELST  BVBA
>
> Henk Van Aelst
> TF 0032 / 15 22 51 43
> henk at henkvanaelst...
> Hertstraat 52
> Gsm 0032 473 66 17 92
> www.henkvanaelst.be
> 2590 Berlaar  
> BTW BE 480.118.920  
> www.ecoforum.be   
>
>
>
> -----Oorspronkelijk bericht-----
> Van: strawbale-bounces at amper....muni.cz
> [mailto:strawbale-bounces at amper....muni.cz] Namens Sebastien Hubert
> Verzonden: zondag 5 september 2010 21:49
> Aan: European strawbale building discussions
> Onderwerp: Re: [Strawbale] results of sb houses across europe pls
>
> Hello,
>
> I did respond to this message before but it seems there was a problem...
>
> We are using more or less this method except that we don't use OSB at 
> the inside but earth.
>
>  From the outside to the inside :
> Agepan/double SLS structure-straw/earth
>
> You can find some pictures on the Grappaille website (Grappaile is the 
> promoting strawbale association for the Walloon region) :
> http://www.grappaille.be/forumgrappaille/viewtopic.php?f=13&t=23&start=90
>
> There are also some pictures on my blog : http://blog.paille.be
>
> Those websites are only in french sorry ;-)
>
> Seb
> http://www.paille.be
>
>
>
> Henk Van Aelst wrote:
>   
>> Neale,
>>
>> I think google can translate.
>>
>> A local Carpenter can make your wooden structure. 
>> Use an undoubled skelet: for example:
>> Two SLS / FJI / 2 planches / laminated wood / open joist... It can be pre
>> fabricated but doesn't need to be. A lot of my do it yourself clients work
>> with planches or sls.
>>
>> Henk
>>
>>
>> ECOLOGISCH  ARCHITECTENBUREAU  HENK VAN AELST  BVBA
>>
>> Henk Van Aelst
>> TF 0032 / 15 22 51 43
>> henk at henkvanaelst...
>> Hertstraat 52
>> Gsm 0032 473 66 17 92
>> www.henkvanaelst.be
>> 2590 Berlaar  
>> BTW BE 480.118.920  
>> www.ecoforum.be   
>>
>>
>>
>> -----Oorspronkelijk bericht-----
>> Van: strawbale-bounces at amper....muni.cz
>> [mailto:strawbale-bounces at amper....muni.cz] Namens Neale Brickwood
>> Verzonden: maandag 12 juli 2010 14:51
>> Aan: European strawbale building discussions
>> Onderwerp: Re: [Strawbale] results of sb houses across europe pls
>>
>> Thanks Henk, thats very interesting and exactly the system i was  
>> thinking of. Do you know if there is an english translation website  
>> with some technical detail re ASBG?
>>
>> It would destroy my embodied energy if i had to import the panels to  
>> the UK but i suppose if the timber is coming from Austria anyway that  
>> would help
>>
>> Regards
>>
>> Neale
>>
>> neale.brickwood at googlemail...
>> 07798854867
>>
>> www.ikonland.com
>>
>> Ikon Land and New Homes Limited
>> The coach House
>> 2 hereford Road
>> Southsea
>> Portsmouth
>> PO5 2DH
>>
>> On 12 Jul 2010, at 09:01, Henk Van Aelst wrote:
>>
>>   
>>     
>>> Neale
>>>
>>> Use a vernished OSB with vapour tape at the inside and a celit 4D or  
>>> 3D or a
>>> Agepan DWD at the outside. If you like a little fire protection than  
>>> use the
>>> French Dip liming methode before you place the bales and finish the  
>>> OSB with
>>> Fermacell.
>>> Look on www.ecoforum.be on techniques by strawbales to the ASBG  
>>> Austrian way
>>> of building.
>>>
>>> Good luck
>>>
>>> Henk
>>>
>>>
>>> ECOLOGISCH  ARCHITECTENBUREAU  HENK VAN AELST  BVBA
>>>
>>> Henk Van Aelst
>>> TF 0032 / 15 22 51 43
>>> henk at henkvanaelst...
>>> Hertstraat 52
>>> Gsm 0032 473 66 17 92
>>> www.henkvanaelst.be
>>> 2590 Berlaar
>>> BTW BE 480.118.920
>>> www.ecoforum.be
>>>
>>>
>>>
>>> -----Oorspronkelijk bericht-----
>>> Van: strawbale-bounces at amper....muni.cz
>>> [mailto:strawbale-bounces at amper....muni.cz] Namens Neale Brickwood
>>> Verzonden: maandag 12 juli 2010 10:17
>>> Aan: European strawbale building discussions
>>> Onderwerp: Re: [Strawbale] results of sb houses across europe pls
>>>
>>> Thanks dave. Obviously more research to do!!
>>>
>>> Neale
>>> Sent from my iPhone
>>>
>>> On 11 Jul 2010, at 22:13, Dave Howorth <dave at howorth....uk> wrote:
>>>
>>>     
>>>       
>>>> On Sat, 2010-07-10 at 22:35 +0000, Neale Brickwood wrote:
>>>>
>>>>       
>>>>         
>>>>> I'm thinking of a dry build using a timber frame to provide the
>>>>> structure and dry enclosure with the straw being inserted from the
>>>>> inside (in the dry) timber cladding outside, plasterboard inside. I
>>>>> know it dosnt stack up with the purist principles but will provide
>>>>> substantial Co2 savings by omitting brick, block and insulation and
>>>>> obviously sand and cement.
>>>>>
>>>>>
>>>>> I presume i'd need a breathable vapour barrier between the timber
>>>>> structure and the cladding which would allow the straw to breathe.  
>>>>> Do
>>>>> you know if any one has done any U value calcs for this type of  
>>>>> build
>>>>> or do you forsee any problems?
>>>>>         
>>>>>           
>>>> Neale,
>>>>
>>>> The term "breathable vapour barrier" is an oxymoron. Breathable means
>>>> "vapour permeable". You probably mean a watertight, airtight barrier.
>>>>
>>>> Straw bales are traditionally coated with lime or clay plaster for  
>>>> two
>>>> main reasons:
>>>> -1- it provides fire resistance
>>>> -2- it provides an airtight barrier that helps the straw function
>>>> effectively as insulation
>>>>
>>>> Gaps between between bales and separate fireproof layers are known to
>>>> act as chimneys in fires and these can increase the spread of flame.
>>>>
>>>> Having said all that, you might want to look at the S-House design.
>>>>
>>>> Cheers, Dave
>>>>
>>>> ____________________________________________________
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>> ____________________________________________________
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>>   
>>     
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>
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>
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> ____________________________________________________
>
>
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>
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