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GSBN:Re: : slab edge insulation
I've never used the perlite/cement mix of which you speak but I do wonder
how well the material drains since it is presumably being used at/below
grade where it is likely to suck up ground moisture quite readily (and hence
compromise its value as insulation) due to the large percentage of void in
the low-density material ?
(ie Expanded perlite is highly absorptive (2-90% by volume) and quite
vapour-permeable (32 perms)...don't know what the properties are when
combined with cement)
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Robert W. Tom
Kanata, Ontario, Canada
please visit: http://www.theHungerSite.com daily
Date: 3 Mar 2003 13:07:55 -0600
From: bainbridge bainbrid@...
foamed concrete insulation
Perlite concrete can be made with a dry density of 20 lb/ft3(320
kg/m3) The lower the density, the higher the insulating value.
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