[Greenbuilding] The beauty of STEEL FRAME WINDOWS.............?????

[Kathy Cochran]

Okay, I have a question.  I am remodeling a house built in 1940.  Steel
frame casement windows.  Single pane.  Northern California.  COLD in the
winter!  I think the BEAUTY of steel frame windows is that MAGNETS can
stick to them and hold up "hand-made, quilted and batted" insulation
"shades".  What should I stuff them with...............aluminum [foil] in
the middle or just batting like a nice warm quilt?  Please advise.  Winter
isn't TOO far away.

Thanks.....Kathy Cochran


> [Original Message]
> From: Keith Winston <keith at earthsunenergy.com>
> To: Greenbuilder list <greenbuilding at listserv.repp.org>
> Date: 8/2/2007 1:02:33 PM
> Subject: Re: [Greenbuilding] Windows - double hung
>
> Hi And welcome John (and hi Laren):
>
> That's a good article you linked to, John. Does a nice clear job of 
> spelling out shortcomings of double-hung (I'd never thought about the 
> double-sided exposure of the bottom edge of the upper sash issue, for 
> example).
>
> And thanks for the addendum Laren, like so many things its one of those 
> things (window screens) that I knew all the information but hadn't put 
> it together and considered implications in a consistent way. Thanks for 
> helping me do so.
>
> Warmly, Keith
>
>
> LarenCorie wrote:
> > From: "John E. Beeson" <jbeeson at quinnevans.com>
> >
> >   
> >> does anyone recommend a manufacturer that makes a good
> >> double-hung?
> >>
> >> And yes, I read this already, but I'm trying to match the historic
> >> windows:
> >> http://www.thermotechfiberglass.com/Column3.htm
> >>     
> >
> > Hello John;
> >
> >   There is another factor, that virtually all of the window
> > manufacturers, and the article above, miss, which makes
> > all sliding and hung windows even less energy inefficient,
> > compared to hinged windows.   It has to do with Solar
> > gain, and has been left out of every claim of Solar trans-
> > mittance, I have seen from a manufacturer. First, sliding
> > windows are set deeper in their jambs, so they receive
> > less sunlight at higher angles of incident. This might not
> > be very important, except for the second, far more
> > important factor.   All of the sliding windows put their
> > screening on the exterior, where it blocks 15-20% of
> > the sunlight, from ever getting to the glass. The screens
> > also reduce the opening size, leaving much of the sun-
> > -light to just shine on the sill, or jambs, outside of the
> > actual  window.     You will not see this mentioned in
> > any of the manufacturer's literature, and if you mention
> > it to any of the window sales people (this can be fun,
> > and even profitable, if you turn it into a question and
> > a bet ;O), they will hear something they never thought
> > about before.  However, in any heating climates, like
> > here in Michigan it is a very important factor.  In the
> > Ann Arbor area, south facing windows should gain
> > more heat than they lose, every month, except may-
> > -be December. They should reduce the heating bills.
> > However,  when you stop 30% of your Solar gain,
> > by placing a screen a few inches out in front of the
> > glass, you are definitely not being green.    Hinged
> > windows place their screens inside, where they do
> > not shade the glass.   This is a critical factor on all
> > exposures, except north. In southern states, where
> > cooling is a greater factor than heating, you will
> > do better with double hungs, because of their
> > shading screens, and operable top sashes.
> >
> > -Laren Corie-
> > Natural Solar Building Designs, Since 1975
> > www.LarenCorie.com
> >
> > -LittleHouses- http://groups.yahoo.com/group/LittleHouses
> > -Energy Self-Sufficiency Newsletter- Free at  www.rebelwolf.com
> > -WoodGas- Power from Wood. http://groups.yahoo.com/group/WoodGas
> > -Refrigerator Alternatives-
> > http://groups.yahoo.com/group/RefrigeratorAlternatives
> >
> >
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> >   
>
> -- 
> Keith Winston
> Earth Sun Energy Systems
> Hyattsville, MD 20781
> 301-980-6325
> send me mail at 
> keith at the company below
> www.EarthSunEnergy.com
>
>
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