[Greenbuilding] Glass ceiling

[John Salmen]

The lap shingled glass sounds like a really nice detail on a nice timber
frame. Actually a large gap between would look good, reminds me of those old
fashioned glass louvre windows. There is a clear Guertin glazing caulking
(thermoplast) that we use that is designed for glazing/building joint seals.
40% flexibility. Foam glazing tapes are also incredibly durable for that
kind of joint and can be gotten in varying thicknesses to allow for added
movement- but they form a black line so wouldn't work for that very well.



-----Original Message-----
From: Greenbuilding [mailto:greenbuilding-bounces at lists.bioenergylists.org]
On Behalf Of Clarke Olsen
Sent: November-17-12 5:04 PM
To: Green Building
Subject: Re: [Greenbuilding] Glass ceiling

Something I learned the hard way: if you lap glass panels, water will
capilery back into the joint.
Stuff will grow in that thin space, and the best way to keep it clean is not
to let them touch. 
I think that the gap needs to be about 3mm (1/8"). If you want to make it
tight, maybe a bead of clear silicone..
Another hard lesson, the amazing power of that caulk not to let go when you
need to take something apart.
Maybe temporary window caulk would be easier to deal with.
Clarke Olsen
clarkeolsendesign.com
373 route 203
Spencertown, NY 12165 
USA
518-392-4640
colsen at taconic.net




On Nov 17, 2012, at 3:50 PM, Chris Koehn wrote:

> I am in the process us building a glass roof entry using glass similar to
yours, though 34" tall. Tempered deck railing panels that were mis-ordered.
Roof has a 3 in 12 pitch and 3 panes of glass are installed shingle-style
over steps in wood rafters. 
> 
> Chris
> TimberGuides 
> Vancouver Island
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