[Greenbuilding] Movable Insulation [ Wall Curtains ]

[JOHN SALMEN]

Well back in those days the forest were full of the sounds of birds singing
and chainsaws making whatever sounds they do and the non-loadbearing as well
as load-bearing studly producing lands of bc was full of companies cutting
trees and diptanks treating studs for export everywhere. 

The diptanks disappeared thankfully but still the studs were produced until
one day the forests were gone and the chainsaws were moved to other places.

All that is left is some replanting that might last a generation or 2 and
the potential for a few loadbearing studs that need to be treasured for the
studs they can be and the loads they can carry.

I'm happy to replace a stud with a long fastener - would be even happier to
have someone foam 98% air on my load bearing structure put a sacrificial
finish on it and call it a day.

This is an interesting thread for me as we are coming into winter here and I
was contemplating adding space to our small house. I spend most of my time
outside but treasure warmth as a basic - so as a result I treasure warm
clothing, small responsive spaces, quick radiators. 



JOHN SALMEN ENVIRONMENTAL DESIGN
4465 UPHILL RD,. DUNCAN, B.C.  CANADA, V9L 6M7
PH 250 748 7672 FAX 250 748 7612 CELL 250 246 8541
terrain at shaw.ca

-----Original Message-----
From: greenbuilding-bounces at lists.bioenergylists.org
[mailto:greenbuilding-bounces at lists.bioenergylists.org] On Behalf Of RT
Sent: November 19, 2010 4:18 PM
To: greenbuilding at lists.bioenergylists.org
Subject: Re: [Greenbuilding] Movable Insulation [ Wall Curtains ]

On Fri, 19 Nov 2010 11:49:29 -0500, Joe Killian <kaa-ajk at sonic.net> wrote:

>   Wall Curtains?
> Way back in the middle ages royalty did that too - Stone castle wall  
> insides were covered with tapestries.

Well, way back in the previous millennium, before (my middle ages) we  
MooseHugger peons who didn't live in stone castles
used curtains of a sort I suppose.

It was in the form of a 2x4 or 2x3 curtain *wall* (ie non-loadbearing,  
studs @ 24" o/c, no lintels or jack studs on openings, single top plate  
etc) ... spaced out from a bearing wall with an insulation cavity between  
the two, uninterrupted by framing members, plane of the interior air  
barrier located at the outside of the bearing wall (ie at least 2/3 of the  
total R-value outside of that plane).

This enabled the wall to be insulated to at least 2/3 or it's total  
R-value (ie even when only partially insulated, an R-value already  
exceeding that of conventional fully-insulated 2x6 walls) while it was  
still laying flat on the floor deck... and permitted the plumbers,  
electricians, sub-framing carpenters etc to go about their business  
without any concerns about their %$@&#*-ing up the integrity of the air  
barrier.

[Tapping side of temple with bent forefinger while squinting with one eye]

Way better approach to occupant comfort than those ditzy Middle Aged  
Royals, I'd venture. Eh ?

(And not having to wrap the wall in foamed plast-eccchhh! insulation in  
order to eliminate thermal bridging at framing members, none of those  
persnickety problems of how to fasten exterior cladding to the wall,  
cantilevered out on the end of really long fasteners etc.)



-- 
=== * ===
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"
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