[Strawbale] Re: Glass bottle insulation and ISBBC 2004

[Chug.]

Nice one Duncan 

Good to hear it is coming along, I was begining to think it was going the same way as the Last Straw back issues CD.


bale on
Chug
chug at strawbale-building....uk
http://www.strawbale-building.co.uk/
.
----- Original Message ----- 
From: "Duncan Lithgow" <duncan at lithgow-schmidt...>
To: "European strawbale building discussions" <strawbale at amper....muni.cz>
Sent: Wednesday, November 23, 2005 4:27 PM
Subject: Re: [Strawbale] Re: Glass bottle insulation and ISBBC 2004


Faas, W. wrote:

>Dear Rikki,
>
>I don't think glass bottles make very good thermal
>insulators. This is because of two reasons:
>
>1. Glass has a high thermal conductivity -> thermal
>bridges;
>2. The air in a bottle will probably start flowing with
>temperature differences -> convection which transfers more
>heat from warm to cold.
>  
>
But in a iwne bottle, opening down, you wouldn't go over the magic 100mm
wide air column needed for air to begin circulating much. I've heard it
works fine, but it's a work intensive way to do it. Why not try sea
shells like they do at Friland (http://dr.dk/friland). It's so cheap 
and easy you just whack a metre of it down and you're done!

>About the ISBBC: Last year in beautifull Denmark, there
>were plans to organise the next ISBBC in Canada somewhere
>in the autumn (after the baling-season). Although that's
>still a year away, I'm curious as to wether or not people
>have been brainstorming/thinking about it already.
>  
>
Well, since you mention the ISBBC you may want to have a sneak peak at
the CD which has been promised for so long. I took over the basic work
from Lars and Joe and it's nearly finished...

http://lithgow-schmidt.dk/isbbc

Duncan

____________________________________________________
    European strawbale building discussion list

Send all messages to:
Strawbale at amper....muni.cz

Archives, subscription options, etc:
http://amper.ped.muni.cz/mailman/listinfo/strawbale
____________________________________________________