A buddy of mine has a zero net design that has rigid insulation window
covers recessed into the ceiling. The swing down at night to cover the
entire window opening. I think they are at least R-30. His walls and
roof are R-50. I can get more detail on their construction if you're
interested.
Zero net buildings produce as much or more energy than they use throughout
a year, thus the zero net energy name. I'm hoping to build a papercrete
zero net building next year.
Shane
>
> My comment about the shades with the tapes, rings and mylar was a result
> of some research my sister and I did about 20 or more years ago when solar
> houses were all the rage here in New Mexico. Some people were making Roman
> shades they called Warm Windows using quilted fabric with a layer of Mylar
> sandwiched in the middle. The idea was that in summer the mylar would
> reflect heat out and in winter it would reflect the warmth back into the
> room. I'm not sure if they attached somehow to the window frame but it
> seems to me that if they had a slightly wider width than the window it
> would fit snugly and keep the cold or heat out.I don't know what the R
> factor was but it was high. Is it really possible to get R factor equal to
> that of a papercrete wall which would be 30+? Long commute? You have a
> job? That couldn't be possible with all that you contribute to this group.
> If I ever know where you live I guess I forgot. Refesh my memory please?
>
>
> To: papercreters@yahoogroups.comFrom: slurryguy@yahoo.comDate: Tue, 2 Oct
> 2007 11:30:59 +0000Subject: [papercreters] Re: windows shade/insulation
>
>
>
>
> Ideally I'd want to have a shade system with an R-factor that approaches
> the R-factor of the wall. No small challenge. This will probably require
> more than one shade, but this could be an advantage. The shade closest to
> the window could be a light passing shade while the inside-most shade
> would be light blocking and more decorative.Gee, if I moved to New Mexico
> do you think I'd find any neighbors with papercrete experience? Gorgeous
> country, but the commute would be a doozie!--- In
> papercreters@yahoogroups.com, JUDITH WILLIAMS <williams_judith@...>
> wrote:>> > I've made insulating shades, of the Roman shade design using
> pre grometted and prestrung tapes available at the fabric store. You can
> use quilted fabric (even insert a layer of mylar in the middle if you
> want) and attach the tapes to the back and the hardware along the top of
> the window opening. It was a long time ago but I would think they are
> still available. And I know of 2 lovely tracts of land for sale in my
> neighborhood in Northern New Mexico. There's a lot of stuff on the market
> here.> > > To: papercreters@...: elf@...: Mon, 1 Oct 2007 08:19:41
> -0700Subject: Re: [papercreters] windows shade/insulation> > > > > > You
> might consider having the insulating shade fan fold instead of roll. It
> will make deployment and (?) undeployment easier and the only place the
> insulation will be compromised by crushing is at the fold. Rings placed on
> the face at the location of the desired folds will allow a cord to go from
> top to bottom for lifting the shade.> > ElfN> >
>
>
> _________________________________________________________________
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