[Bldg-sim] Curtain wall retrofit options

Cheney chenyu73 at gmail.com
Thu Oct 6 14:11:14 PDT 2011


Hi,

I have been involved in a small retrofit project recently with installation
of "Kalwall". Probably it is a solution for your project.
http://www.kalwall.com/about.htm#assembly
Regards,

Cheney

LinkedIN @ http://ca.linkedin.com/pub/yu-cheney-chen/27/637/72b



On Thu, Oct 6, 2011 at 1:41 PM, Adam Jackaway <adamjackaway at yahoo.com>wrote:

> Hi folks,
>
> I'm currently involved with a prospective project to retrofit an existing
> urban office building in a robust four-season climate. The building is
> roughly 60 floors, circa early 1960's, with an original single pane,
> non-thermally-broken aluminum curtain wall, and anodized aluminum spandrel
> panels. We don't have exact glazing specs yet, but COG is likely in the
> range of: SHGC=0.43, Tvis=0.53, Uval=1.00
>
> Here's the question: If you wanted to retrofit the facade to improve
> overall building energy / occupant comfort (heating, cooling, solar control,
> daylighting, MRT adjacent to glazing, etc.), *but were required to retain
> the original glazing (for architectural considerations, or due to
> impracticality of complete facade removal with existing tenants)*, what
> options might you pursue? Additional potential constraints of note (still to
> be determined) may include: mullion depth limitations, structural facade
> load limits. Also worth noting that the building's rectangular plan features
> a SW-facing long-axis orientation, so spring-through-fall cooling loads are
> likely to be enormous. Finally, if a second skin solution is to be pursued,
> we're also keen to keep an eye on condensation issues.
>
> What's the latest, greatest thinking in this arena? Suggestions / comments
> much appreciated....
>
> cheers,
>
> Adam
>
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