[GSBN] insulation vaue of straw bales

Bruce EBNet bruce at ecobuildnetwork.org
Tue Apr 12 11:27:41 CDT 2016


Many thanks to all of you who responded!

But, um, I wasn’t so much looking for information as hoping to prod y’all into contributing to the BuildWell source, and even get in the habit of using it.  Many have now sent me papers or links with cheerful permission to put them in the library, but it just can’t work that way.  I’m as swamped all the time as you, and further won’t be around forever.  The only way for us to collect and maintain an accessible resource is to all use it, and especially contribute what we can.

So c’mon, troopers.  Think of the coolest paper or web link or YouTube video you know, and put it in the Source so everyone else can dig it.  You’ll feel so good, and I might even stop hassling you about it!

Bruce “Not a particularly eternal guy” King




> On Apr 11, 2016, at 8:49 AM, Dodson Harper <dodson at reginc.com> wrote:
> 
> All
> 
> Here are the three reports we have on file in our office about bale thermal performance. Unfortunately not the ORNL test. 
> 
> Bruce-As far as I am concerned these could be uploaded into the Source.
> 
> Cheers,
> Dodson
> 
> <*REG Resume Logo.jpg>
> <Danish r-value testing.pdf>
> <Thermal report AT-00258 Rapport FR Brouillon - reduced.pdf>
> <UK thermal testing Shea_BSERT_2012.pdf>
> 
> 
> 
>> On Apr 11, 2016, at 1:33 AM, David Eisenberg <strawnet at gmail.com <mailto:strawnet at gmail.com>> wrote:
>> 
>> Hi Bruce and all,
>> 
>> Regarding that old ORNL thermal testing, I would guess that Nehemiah Stone would be the most likely person to have the actual test results. I tried to get them from Jeff Christian and others at ORNL a couple of years after the testing was done. I was also trying to get them to complete the work they had said they were going to do, which was analyze the results from the testing following achieving a steady state thermal flux. At that point they varied the external temperature to model weather patterns in several US cities to get an effective calculated R-value that would take into account the insulation and mass properties of the wall. They did that for other wall systems they tested, but never performed the calculations for the strawbale wall assembly even though they did the actual thermal testing. I was never able to get either the original test results or more information than the scant amount in various paper summarizing the whole wall thermal testing facility and their rotatable guarded hot box test apparatus. 
>> 
>> The paper that Nehemiah wrote, that is on the EBNet website describes the testing but isn't the ORNL report. Hopefully Nehemiah will chime in on this.
>> 
>> David Eisenberg
>> 
>> On Sun, Apr 10, 2016 at 4:37 PM, Bruce King <bruce at ecobuildnetwork.org <mailto:bruce at ecobuildnetwork.org>> wrote:
>> 
>> G’Day, GSBN —
>> 
>> John Glassford wrote to me asking for some technical reports, in particular the thermal study done at Oak Ridge National Laboratories about 15 years ago.  I can’t find an electronic copy on my hard drive, but hope that one of you do and will load it up on the BuildWell Source here: http://buildwelllibrary.org/building-materials/fibers/straw/strawbale <http://buildwelllibrary.org/building-materials/fibers/straw/strawbale>
>> 
>> We’ve all been in John’s position, and will again:  when the technical stuff you mostly don’t care about or need you suddenly do, and in those moments we all need an easy, accessible place to find it.  That’s why we have the Source <http://buildwelllibrary.org/>   But it is a user based, user-reviewed resource; we count on you to take a moment and upload whatever useful documents you may have so that everybody forevermore all have benefit of them.
>> 
>> Please do take a moment to share whatever geeky jewells you may have — on straw, straw-clay, earthen building, bamboo, or any other part of natural building.  Someone someday will be very grateful that you did, but you can enjoy the warm satisfaction of your own selfless generosity right away!
>> 
>> cheers,
>> 
>> Bruce King
>> (415) 987-7271 <tel:%28415%29%20987-7271>
>> bruce at bruce-king.com <mailto:bruce at bruce-king.com>
>> 
>> 
>> 
>> 
>>> On Apr 7, 2016, at 7:23 PM, John Glassford <jacksflat at gmail.com <mailto:jacksflat at gmail.com>> wrote:
>>> 
>>> G ' day Bruce
>>> 
>>> Trust that you have fully recovered from your visit to the Land of the Long White Cloud.
>>> 
>>> I am copying this to one of our valued clients John Beurle who is building an energy rated SITUPS home in Victoria.
>>> 
>>> John needs some of the latest data on the R value of straw bale walls.  I only have the old work that was done  by Joe McCabe and Nehemiah Stone.
>>> 
>>> John is going for a 9 star rated wall system for the Victorian Government.
>>> 
>>> If you are able to help us it would be very much appreciated mate.
>>> 
>>> Remember our down under rating systems are a wee bit different to yours in the USA.
>>> 
>>> I am working on walls 350 mm thick i.e. bales on edge as well as allowing for render on the external walls at least using lime render 45 mm thick.
>>> 
>>> Thanks mate. 
>>> 
>>> Kind regards
>>> Susan and John Glassford
>>> Huff 'n' Puff Constructions
>>> http://www.glassford.com.au <http://www.glassford.com.au/>
>>> 61 2 6927 6027
>>> In Australia (02) 6927 6027
>>> Mobile 0412 11 61 57
>>> 
>>> 
>> 
>> 
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