[GSBN] windscreen

[John Swearingen]

Thanks, that's interesting data.  The paper mentions 25% as the upper limit
of moisture content for bales with a source notation of [8].  However, [8]
is missing from the paper.  What IS the upper limit, and how does this vary
with temperature?

Thanks,
John

On Sat, Jan 22, 2011 at 12:36 PM, John Straube <jfstraube at gmail.com> wrote:

> Excellent paper. Useful addition to the arsenal.
>
> Sent from my BlackBerry®
>
> -----Original Message-----
> From: Jim Carfrae <jim.carfrae at plymouth.ac.uk>
> Sender: GSBN-bounces at greenbuilder.com
> Date: Sat, 22 Jan 2011 13:32:00
> To: (private, with public archives) Global Straw Building Network<
> GSBN at greenbuilder.com>
> Reply-To: "(private, with public archives) Global Straw Building Network" <
> GSBN at greenbuilder.com>
> Subject: Re: [GSBN] windscreen
>
> Thanks, John.
> I wrote a paper for a conference in 2009 with these findings in it.
> I don't know if I can attach it to this email to make it available to all,
> but I'll try.
>
> Jim
>
> Jim Carfrae
> PhD Research Student
>
> Room 119, Reynolds Building
> University of Plymouth
> Drake Circus
> Plymouth
> PL4 8AA
>
> jim.carfrae at plymouth.ac.uk
> 07880 551922
> 01803 862369
> ________________________________________
> From: GSBN-bounces at greenbuilder.com [GSBN-bounces at greenbuilder.com] On
> Behalf Of John Straube [jfstraube at gmail.com]
> Sent: 22 January 2011 13:03
> To: (private, with public archives) Global Straw Building Network
> Subject: Re: [GSBN] windscreen
>
> Well Jim that is darn useful stuff!   have you done a paper or something on
> this?  Would be great to have this info to spread around.
>
>
>
> On 2011-01-22, at 5:25 AM, Jim Carfrae wrote:
>
> > As part of my research into the moisture performance of SB in a Temperate
> Maritime (Damp) Climate , I've monitored two structures where a direct
> comparison can be made between a plain lime rendered section of wall
> adjacent to a section of the same wall protected by a ventilated timber
> rainscreen.
> > (Plain lime wall = 3 x 12mm coats. Rainscreen = 1 x 12mmm scratch coat,
> 25mm vented void, permeable membrane, 25 mm vented void, vertical timber
> boarding with 5mm gaps)
> > In each case the average moisture content of the straw just behind the
> render was between 3% and 4% lower (typically 17% behind plain render, 13%
> behind rainscreen)
> > This is an apreciable difference, especially as this was not a
> particularly exposed site. If there was significant driving rain I would
> expect the difference to be higher.
> >
> > To reinforce what John Straube said - It has to be vented top and bottom.
> >
> > Jim (moist) Carfrae
> >
>
> Dr John Straube, P.Eng.
> Associate Professor
> University of Waterloo
> Dept of Civil Eng. & School of Architecture
> www.buildingscience.com
>
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-- 
John Swearingen
Skillful Means Design & Construction
2550 9th Street   Suite 209A
Berkeley, CA   94710
510.849.1800 phone
510.849.1900 fax

Web Site:  http://www.skillful-means.com
Blog:         https://skillfulmeansdesign.wordpress.com
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