[GSBN] Wall Detail

[Bohdan Dorniak]

Thanks Anni

Thanks for the reply.

Many years ago I was involved in a “Log Panel” system. Basically a 4’ X 8’ panel. The issues that we found as the designers that it was important to design to the 4’ module. 

As architects this can be limiting.

Also when constructing – any variation in the floor meant lots of packing under the panels or if the floor was out of square – lots of re-jigging.

But the upside was speed of erection of the walls particularly if flat and square and accurate floors.

Weight was also an issue in manoeuvring the panels.

Thanks again for the email.

Regards

Bohdan

 

 

From: Gsbn [mailto:gsbn-bounces at sustainablesources.com] On Behalf Of Anni Tilt
Sent: Tuesday, 22 May 2018 2:29 AM
To: Global Straw Building Network
Subject: Re: [GSBN] Wall Detail

 

Hello Bohdan - good question!

Here are some thoughts off the top of my head

 

Improvements:

 

1) We designed the layout of the studs at 24” on center, into which an unmanipulated bale fits nicely.  Despite a note on the plan, only about 1/3 of the bays are actually built this way.  This added a lot of time in “ripping” the bales (and inventing the ripping jig). Approve a stud layout in advance?  

2) We interrupted the bale wall at a few large window bays, and I wouldn’t do that again - the stopping and starting of details is more challenging than continuous details, even though it is more surface area.  

3) The cap of the bales at the ceiling plane needed better attention (we added plywood), and ideally plaster, but it is a sequencing issue.  

4) Getting the large volume of bales on the 2nd/3rd floor was a challenge- needs to be designed into the process!

5) The GRK screw with plywood strip attachment worked well, but they are expensive, and we would of course prefer to have a non-metal solution.

6) Plan better to get bales in earlier in the year - took the plaster forever to dry in the damp autumn of the Pacific Northwest.

7) Test density before purchasing bales -  2 string bales that were purchased (see #1 above) had to be rejected. 

 

 

Good things:

1) Fire rating:  thankfully, we have flame spread rating information (required for commercial buildings in the US) - attached below.

2) “Chair rail” for electrical/data runs and to prevent damage to the plaster from, um, chairs.  

3) Clay paint finish in most offices was an important cost/time savings measure. 

4) Having a expert straw-bale builder/ designer on the ground and part of the process was a god-send.  Many thanks to Erica Ann Bush of One World Design, as well as the invaluable help of Jim Reiland of Many Hands Builders who helped lead the workshops.  

 

 

best

Anni 

Arkin Tilt Architects  Ecological Planning & Design

                                                                                                                1101 8th Street, #180

                                                                                                                Berkeley, CA 94710

                                                                                                                510.528.9830

                                                                                                                510.528.0206 fax

                                                                                                                www.arkintilt.com

 

 

 

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