[Greenbuilding] Fwd: [SolarHeat] moveable insulation

[RT]

On Mon, 15 Nov 2010 10:11:34 -0500, Sacie Lambertson  
<sacie.lambertson at gmail.com> wrote:

> Referencing old discussions about effective insulating window shades.   
> Note particularly Doug's use of a simple groove to lock the shade in  
> place.

> *----- Original Message ----- *
> *From: Doug Kalmer <sunart at netease.net>*
> *To: SolarHeat at yahoogroups.com*
> *Sent: Monday, November 15, 2010 8:14 AM*
> *Subject: [SolarHeat] moveable insulation*
> *
> *
> * *
>
> *You assume that movable insulation must be panels- not so- here's my  
> easy to use, effective roll up insulated shades-*
> * *
> *
> http://www.builditsolar.com/Projects/Conservation/ThermalShades/ReflectexShade.htm


Having the edge of the boobble wrap slide in dadoes does not constitute an  
effective edge seal.

If the perimeter seals are not air-tight, moist warm air gets into the  
space between the shade and the glass and condenses creating puddles on  
the sills, frost and ice build-up on the edges of the glass and ... well,  
just a whole bunch of trouble.


-- 
=== * ===
Rob Tom
Kanata, Ontario, Canada
< A r c h i L o g i c  at  Y a h o o  dot  c a >
manually winnow the chaff from my edress if you hit "reply"
__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com