[Cob] Fire Tests for Clay-Hemp or Light-Straw-Clay

[Feile Butler]

Hi All

Thanks to everyone who responded to this.

Lots of leads and (not-so) light reading ahead of me. I will let you 
know how I get on.


Regards

*Féile *


On 16/10/2018 11:25, Feile Butler wrote:
> Hi
>
> I am consulting on a round-pole/cob-cordwood theatre which was 
> constructed in a piecemeal fashion over the past 15 years by 
> permaculture students with no regard for building regulations. It is 
> now used as the base for the drama students in the same college and 
> also as an occasional public theatre. The local authority has recently 
> taken an interest in it and closed it down until has been made compliant.
>
> We are trying to remain true to its ethos as an all-natural building, 
> using locally-sourced, natural building materials as much as 
> practicable. The building needs thermal upgrades as well as fire 
> upgrades. There are numerous awkward gaps that need fire-stopping 
> where the complicated reciprocal roof timbers land on the cob-cordwood 
> walls. Therefore, we are proposing using either clay-hemp or 
> light-straw-clay to clad the walls and act as a fire stop, providing 
> both thermal and fire upgrades in one hit.
>
> The fire officer has requested a fire test for whichever of these 
> materials we go for.
>
> Is anyone aware of any official English language fire tests for either 
> or both of these materials? We need to meet 60 minutes fire resistance.
>
>
> Kind Regards
>
> *Féile Butler*
> B.Arch MRIAI Conservation Grade III
> Executive Board Member of Earth Building UK and Ireland (EBUKI)
>
> *Mud and Wood / Roots Architecture*
> Grange Beg, Skreen, Co. Sligo
>
> *T:*  +353 (0) 71 930 0488
> *M:* +353 (0) 86 806 8382
> *E:*  feile at mudandwood.com
> *W:* www.mudandwood.com
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