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Re: GSBN:Re: Strawbale walling query
I know that many might disagree with me (especially those shaky
In California we have been known to get the shakes, but for different
reasons than those that Ireland is famous for. We like to use the bales
structurally, particularly because there is some difficulty and debate in
determining the strength of timber-jointed connections. Our detail calls
for a 1/2" plywood strip on the outside of the post (about 2" narrower than
the post), and then we staple the mesh (we always use mesh) to the plywood
and key the plaster behind the post. Then when things get shaky and the
world is spinning around, the bales and the posts hold each other up, a
thoroughly Irish solution.
John "Which Way is Up?" Swearingen
On 10/4/07, cmagwood@...cmagwood@... wrote:
> Since I'm the Magwood responsible for the book Siobhan is working from, I
> guess I should respond...
> I know that many might disagree with me (especially those shaky
> Californians), but after years of spending all kinds of time anchoring
> bales to posts, I stopped doing so. Seemed like the test figures I was
> seeing would indicate that the walls weren't going to warp, wiggle or tip
> over, especially when wrapped around the outside and tied in via a solid
> bale/plaster corner.
> If she follows the details for using vapour barrier and mesh strips behind
> the posts and tied into the plaster, that's all the anchoring (and
> barrier-ing) that I would use.
> Of course, others might disagree...!
> > I had a meeting today with a young Belfast architect, Siobhan Brown,
> > who is designing a strawbale house for a self builder in County
> > Fermanagh ~Northern Ireland
> > I don't think Siobhan has much experience of SB but she has had a
> > good go at the design mainly based on details in a book by Chris Magwood
> > The client wants to built a post and beam structure for the house and
> > then wrap the strawbale walls around the outside of the posts.
> > She was not proposing to tie the walls into the posts as she says
> > that Magwood's details do not show this.
> > She was planing to tie the wall plate to the rafters of the roof. The
> > house is single storey but with rooms in the loft. so the floor
> > joists for the upper floor will be part of the roof structure.
> > I have misgivings about this . I wonder if anyone has built a
> > strawbale house where the bale walls are not load bearing and are
> > wrapped around the outside of the structural posts without being tied
> > into them? The posts will be about 4 metres apart.
> > Fermanagh has to have 100% humidity all year round with a lot of
> > heavy winds and driving rain. If you stand still for 5 minutes moss
> > will grow on your head. I also think the walls will need a rain screen
> > I would have thought a more solid structure would involve placing
> > sections of bale walls between the posts and being tied into them
> > Any useful comments and I will pass them onto Siobhan
> > thanks
> > Tom Woolley
> > woolley.tom@...
> > Rachel Bevan Architects
> > 17A Main Street
> > Saintfield
> > Ballynahinch
> > County Down
> > BT24 7AA
> > 028 97 512851
> > also:
> > Graduate School of the Environment
> > Centre for Alternative Technology
> > Unit 7, Dyfi Eco Parc
> > Machynlleth
> > Powys, SY208AX
> > 01654 703562
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Skillful Means, Inc.
Design and Construction
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