[Greenbuilding] Greenbuilding Digest, Vol 21, Issue 34

[Gary]

The only window that has been proven to be the worlds most
energy efficient is by
http://www.thermotechfiberglass.com/index.htm
They are far superior then any thing mfd that I know of.
Also check out their doors, They have a far superior three
lock system for secure & tight closing against the weather
stripping.

Message: 2
Date: Sat, 29 Mar 2008 09:10:17 -0400
From: "George Tremblay" <George_Tremblay at antiochne.edu>
Subject: [Greenbuilding] tub/shower and window questions
To: GREENBUILDING at LISTSERV.REPP.ORG
Message-ID:
	
<fc.00757e2a04a88b5400757e2a04a88b54.4a88f9f at antiochne.edu>
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Greetings:
I'm an owner/builder (once professional furniture builder),
working on a renovation which is soon to involve complete
replacement of substantial exterior wall.  In the walls I've
been preserving, I've installed Marvin Integrity windows and
added two inches of foil-faced foam to the exterior
(2x4 with fiberglass batts) walls.  In the new walls, I'm
trying to decide whether to invest in higher R than a
standard 6" wall, with either cotton batts or blown-in
cellulose, again with Integrity glazing.  I've considered
either thicker, double-studded walls, or a layer of foam
inside or out.  The builder who will be doing this phase has
proposed that I'd be better advised to upgrade the windows
than go beyond the standard 6"
wall--that essentially, the windows will be the weakest link
in a pretty good envelope, at that point.  The new walls
will constitute about half of the exterior surface of the
house, with the remainder being the wall assembly I
described above.  Assuming an R-40 roof, would anyone care
to offer advice on this?  If the windows are the weak link,
what would be a reasonable step up?


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