[Greenbuilding] Thin High R-value insulation for exterior

[Michael O'Brien]

Hi, Lynelle--

Hmmm...a brick veneer would normally sit on a ledge, like a metal bracket, attached to the structure. Is there some way the stone could be supported like that?

Best,

Mike O'Brien

On Oct 30, 2010, at 6:28 AM, Lynelle Hamilton wrote:

> Hi All:
> 
> Again, I turn to this list for advice.
> 
> My house is durisol block, but I want to add 12-15R insulation to the exterior, in part to reduce heat loss from the webs of the block, and partially because I want R40-R43 walls.
> 
> I have reclaimed 3" SM Board (blue EPS)  to put on the outside of the durisol.
> 
> The facing is manufactured stone.  I have had 3 masons look at the property.  One mason says no problem attaching the stone to the durisol through the 3" EPS, the other two say well.,....can't you find something else?   They point to the possibility that the screws needed will bend in the EPS, allowing the block to sag.
> 
> Both say spray on closed cell insulation provides too uneven a surface to attach lath and stone.
> 
> So, has anyone done what I'm doing? What was the result? Alternately, does anyone know of anything with grater rigidity than the EPS, perhaps with higher R-value per inch, that would work?
> 
> Please don't point me to the engineer....he says this is out of his scope.
> 
> Many, many thanks!
> 
> Lynelle
> -- 
> Effective immediately, please use the following e-mail address to reach me: lynelle at lahamilton.com
> 
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