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straw bale finish?


By A6D9, Section Housing
Posted on Wed Feb 27th, 2008 at 04:38:10 PM MST
does it need it?

I am tryignt o prepare for a long term goals.

My goal is to build a straw bale home in the next 2-3 years.

I have been doing research and feel I will be going with a post and beem set up.

my question is, for the finish, allot of peopel use plaster of soem sort.

I was wondering if this would work.

I would like to plaster the outside or perhaps "shotcreet" it.

so woudl that work?  first question....

second questions....

for the inside, do i need to coat it with something?  can i not build a 2X4 stud wall and mount drywall just in front of the straw wall?

or should i seal it with some sort of plastic or "tyvek" sheeting? and then build my wall in front?

I only plan on building the outside walls with bales.  the interior walls will be regular old fashion drywall.

will be don eon a slab and I plan on building a knee wall with the foundation as to keep the bales off the ground.

This will be in a small place just outside of Fredericton, Nb,Canada,  we get allot of snow.  

any advice?  or comments is greatly appreciated.  :)

straw bale finish? | 3 comments (3 topical, 0 editorial)

Re: straw bale finish? (3.00 / 0) (#1)
by frackers (g8ecj at *nospam* gilks dot org) on Wed Feb 27th, 2008 at 03:21:25 PM MST
(User Info) http://www.gilks.org

My understanding is that straw bales have to 'breathe' so the old traditional lime render is the best bet. A 5 second google found this:

http://www.channel4.com/4homes/ontv/grand-designs/trade_secrets/gdts_strawhouse_guide.html

Looks like a start to me!!
Robin - Down Under (or are you Up Over)



Re: straw bale finish? (3.00 / 0) (#2)
by Tio on Sat Mar 1st, 2008 at 07:30:20 PM MST
(User Info)

I have actually built a couple of straw-bale buildings. For myself and others.

The short answer is "Yes, you need some type of breathable finish on it.

The other parts are not so simple. Yeah, you could shot-crete it. Yeah, you could build stud walls and rock them. Yeah, you could use tyvek.

But why?

It is a proven technology that has stood the test of time without shot-crete, furred out sheet-rock - or even in-filled timber framing.  



Re: straw bale finish? (3.00 / 0) (#3)
by GaryGary (gary@BuildItSolar.com) on Sun Mar 2nd, 2008 at 08:22:32 PM MST
(User Info) http://www.BuildItSolar.com

Hi,
It seems like if you are going to build a regular stud wall inside the strawbale wall you might be better off to just go with the double stud wall and use lots of cellulose fill in the the middle.  

Not sure why you would want to use the drywall inside?  The plaster finish walls I've seen in strawbale homes look outstanding (to me).

Lots of info on strawbale and double wall construction here:
http://www.builditsolar.com/Projects/SolarHomes/constructionps.htm

One of the books thats listed:
Building One House: A Handbook for Strawbale Construction, Nathaniel Corum
is very very detialed on strawbale construction.
Lots of construction detail.

Gary
Gary gary@BuildItSolar.com www.BuildItSolar.com



straw bale finish? | 3 comments (3 topical, 0 editorial)
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