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SV: GSBN:Re Thermal Properties of Straw Bale Walls
- To: "GSBN" GSBN@...
- Subject: SV: GSBN:Re Thermal Properties of Straw Bale Walls
- From: J¿rgen Munch-Andersen jma@...
- Date: Fri, 18 May 2007 12:47:13 +0200
- Reply-to: "GSBN" GSBN@...
- Sender: "GSBN" GSBN@...
A summary of different measurements of heat conductivity and U-values (in SI-units, note also that U-values are the inverse of R-values) are given in English at pp 43 - 45 in our publication on SB-houses. It can be downloaded from
<a target="_blank" href="http://www.sbi.dk/byggeteknik/konstruktioner/serlige-konstruktioner/halmhuse/halmhuse">http://www.sbi.dk/byggeteknik/konstruktioner/serlige-konstruktioner/halmhuse/halmhuse</a>
There is an optimal density for every material, but it will vary with the type of straw. The optimum is very flat for most materials, and it surely is flat for straw. There are much bigger problems than the influence of the density to be solved if we want reliable U-values. This is also dealt with in our publication.
SBi (Danish Building Research Institute)
Dr Neergaardsvej 15
Tel +45 4574 2388 (dir)
Fax +45 4586 7535
Fra: GSBN p? vegne af John Glassford
Sendt: fr 18-05-2007 04:03
Emne: Re: GSBN:Re Thermal Properties of Straw Bale Walls
G ' day Nehemiah and Andrew et al
Many thanks for the replies and for your considered input. It is very
I am sure that there is much more work to be done in this area
especially with jumbo bales as they are naturally compacted a lot more
than the smaller bales. Does that provide more or less insulation?
Many questions ahead of us.
Kind regards John Glassford.
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