[Greenbuilding] CONDITIONED crawlspace ventilation

[John Salmen]

Last projects lines were routered into the foam and the tubes were set in
with a foil backer., ply sheathing laminated over. Tubes were spaced closer
with lower heat. There is still enough contact area between the foam and ply
to form a good skin. This detail is designed for solid wood flooring nailed
to the sheathing. For any other type of flooring (carpet/floating/lino) I
would use a 2nd layer of sheathing. 

Another option I'm looking at is laminating gypsum or conc. Panels to the
foam with spaces between for tubing. A little easier assembly and allows
some commercial systems to be used (w/radiant metal chanels)



TERRAIN E.D.S.
4465 UPHILL RD
DUNCAN BC
CAN V9L 6M7
PH 250-748-7672  FAX 250-748-7612 CELL 250-246-8541
terrain at shaw.ca 



-----Original Message-----
From: greenbuilding-bounces at listserv.repp.org
[mailto:greenbuilding-bounces at listserv.repp.org] On Behalf Of Rushd45
Sent: November 24, 2006 7:51 AM
To: 'GB REPP'
Subject: Re: [Greenbuilding] CONDITIONED crawlspace ventilation


John wrote - 

> The foundation/subfloor that I have been using consistently is 6" eps foam
> on a prepared sand/gravel base with either sheathing laminated directly to
> the foam with whatever flooring above or thin slab or tile on thickset as
> finished floor. In other words no concrete slab. 
> 
> It makes a lovely floor I think with the cost of affective insulation
offset
> by the lack of slab.
> 
> John Salmen

How would you handle a radiant heating system with no slab? It also makes
great sense to do away with the slab if the building codes can be followed.

Rush
Tucson AZ
www.ironandwood.org

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