[Bldg-sim] Vertical butt joint glazing - thermal bridging

[Neeraj Kapoor]

Hello Chris,

Seems like you would need to (appropriately) average out "edge of
glass" 
and "center of glass" u-values. This may be a function of the size of 
the glass plane, i.e. a large glass plane will have predominantly 
"center of glass" u-value characteristics rather than "edge of glass". 
My question back to the bldg-sim(ers) will be -- are there any studies
/ 
empirical data drawing relationship between edge effects and center of 
glass conductance values with respect to different types of glazings
and 
their sizes.

~Neeraj

Neeraj Kapoor
t: +91-99581.70018
Kalpakrit Sustainable Environments Pvt. Ltd.
New Delhi


Chris Jones wrote:
> A client has a project with the glazing units butt jointed at the 
> vertical joints between sections.  He thinks that this may have less 
> thermal bridging then for a vertical joint with typical framing 
> details.  Does any one have any experience with this type of joint?  
> The glazing units are double pane sealed units with warm edge
spacers.
>
>
>
> Chris Jones, P.Eng.
> 14 Oneida Avenue
> Toronto, ON M5J2E3
> Tel. 416 203-7465
> Fax. 416 946-1005
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