[Greenbuilding] foam-core wood window frames in Passive House

[John E. Beeson]

To help with the website translation for those that don't know german!

http://www.babelfish.altavista.com/babelfish/tr 


QUINN EVANS | ARCHITECTS
John E. Beeson, LEED AP
v 734 663 5888


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From: "Reuben Deumling" <9watts at gmail.com>

So here's a German fellow who made his own wood windows in a manner
intended to minimize thermal bridging across the frames.
<http://www.lrz-muenchen.de/~Passivhaus/3fenster.htm>  It is
inspiring, but also appears to be a great deal of work. I'm curious
whether any of you (Nick?) might be able to weigh in on the thermal
significance of window frames. In other words, how to contextualize
the effort required to do something along these lines in light of
plausible btu/hr savings? Would the same thermally optimized house
with and without these special window frames be very different in
terms of heat loss?
More photos at: <http://www.lrz-muenchen.de/~Passivhaus/3fenste1.htm>