[Greenbuilding] wall envelope - rainscreen

[RT]

On Fri, 15 Oct 2010 08:52:40 -0400, Alan Abrams  
<alan at abramsdesignbuild.com> wrote:

> would the roxul in this case be rigid
> enough to scrunch down furring strips against its surface, and stay like
> that for a while, to support horizontal siding?
>
> this of course presumes the ban against furring over exoinsulation does  
> not have a lot of merit.

Huh ? "Scrunch" ? Vass iss dis "scrunch" ? Don't know "scrunch". (Sounds  
like a sugary kiddies breakfast cereal)

And "ban against furring over outsulation" ? I didn't know there was a ban.

But taking a stab into the dark...

Would the word "Z-channels" be of any use here ?

(They are often used here in MooseLand with the semi-rigid mineral wool  
boards to provide attachments for siding.)

WRT the ban on furring strips:

What is the intent of the ban ? Does it have to do with concerns about  
creating leetle chimneys for fire that would schwoop up and make short  
work of foamed plast-eccchh! outsulation and then result in the whole  
exterior falling off in a spectacular flaming mess ?  (I just made that up  
but it sounds pretty good. Eh ?)

If so, the ban may not apply to Roxul since it doesn't burn and the use of  
Z-channels would make the point moot anyway since there would be no air  
gap.

-- 
=== * ===
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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