[Greenbuilding] Best bang for the buck in wall insulation

[Jason Holstine]

The Roxul Comfortboard has been gaining steam and reputation as a
replacement for the plastechhh foam boards. Much lower GHG potential and
toxicity, doesn¹t burn (made of recycled steel and volcanic rock), deals
with vapor and water nicely, tight, quiet, and Roxul is picking up
documentation on hanging it.  Only downside is availability in your area may
still be dicey. 




On 3/25/14 10:53 AM, "Lynelle A. Hamilton" <lynelle at kos.net> wrote:

> For true!  I'm planning on some sort of sheathing as you describe. I
> used 2" of closed cell spray foam last time over outer side of 14"
> insulated Dursiol block.  I love the house and the airtightness of it
> (assuming airtightness is a word), but it was a pricey option.
> 
> Lynelle
> On 3/25/2014 10:43 AM, Clarke Olsen wrote:
>> Don't forget that uninterrupted insulation, like foam spanning across studs,
>> or cellulose in the center of a double wall,
>> is worth more then the same stuff stuffed between studs.
>> Clarke Olsen
>> clarkeolsendesign.com
>> 373 route 203
>> Spencertown, NY 12165
>> USA
>> 518-392-4640
>> colsen at taconic.net
>> 
>> 
>> 
>> 
>> On Mar 25, 2014, at 9:28 AM, "Lynelle A. Hamilton" <lynelle at kos.net> wrote:
>> 
>>> Hi Listers,
>>> 
>>> I am looking to tap the collective expertise of the group for house #3.  I
>>> am aiming for R-50 or so in the walls, but would love opinions on the
>>> greenest and most cost effective method to attain same.
>>> 
>>> Any thoughts?
>>> 
>>> Lynelle
>>> 
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