[GSBN] Control joints (was Re: Lime plaster and expansion joints)

[Laura Bartels]

John,

Can you describe what you mean by the skirt or architrave? That is a  
new term to me.

Laura




Laura Bartels
P.O. Box 912, Carbondale, CO 81623
Ph 970-379-6779, Fax 970-963-0905
laura at greenweaverinc.com
www.greenweaverinc.com




On Feb 10, 2009, at 6:51 PM, John Glassford wrote:

> G ' day
>
> Just an idea.  What we are doing is this; with houses anyhow.  We  
> are using a hybrid method combining the bales and the window and  
> door frames to support the roof.  The frames usually 250mm x 50mm go  
> the full height of the wall and after compression; done by all  
> thread in pairs every 1.8 metres; these frames are then locked into  
> the top plate.
>
> Thus we have a perfect expansion joint wherever windows and doors  
> are located.  We then render to the frames and cover the edge with  
> skirts or architraves.  The wall is now protected for water  
> penetration even if the render has a crack where it joins the  
> timber.  We find that using this method we have not experienced any  
> cracking on the vertical.
>
> With walls with no windows and doors over 3 metres long you would  
> expect cracks in cement renders and our experience is such.  We do  
> not get any cracking in earthen renders with plenty of straw or  
> chaff.  However these earthen renders are not easy to apply with a  
> pump.  So for commercial buildings and the like we use lime and sand  
> which we pump on.  We then apply a fibre mesh to the second coat and  
> to date zero cracking even in walls 24 metres long and 5.4 m high.
>
> I will post some photos to the web site below one day soon.
>
> Kind regards
> The Straw Wolf
> Huff 'n' Puff Constructions
> http://www.glassford.com.au
> 61 2 6927 6027
> In Australia (02) 6927 6027
>
> The Orphan Rescue Kit Africa
> http://theork.com
>
> Mountains of the Moon 2010
> http://www.mountainsofthemoon.org
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