[GBlist] Re: SIP roofs rot in wet climates

["Bruno M." <brunom1@yucom.be>]

At 07:38 26/02/2002 -0800, Scott Schreffler wrote:
>January issue of the Journal of Light Construction had an article citing
>houses in Juneau Alaska (very wet climate) with 3-year-old rotting SIP
>roofs.  The article claimed that it was partly due to faulty installation,
>but that SIP roofs are inherently a bad idea for wet climates.
>Does anyone have any experience/insight into this?
>Scott Schreffler
>BUMGARDNER
>Architecture Interiors Planning
>Seattle, Washington
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Scott,
Don't you like mushrooms growing out of the roof :-)
I'm not a building specialist, even not a SIP-lover, but when you read 
amongst others:
http://www.jlc-update.com/archive/12_01/panel_roof.html

and surely this 5 Perspectives/viewpoints at :
http://www.sipweb.com/monitor/monitor_feature.asp

Since there were more than 5 different manufacturers it is not a problem of
a specific mark of SIP's that is not good.
And since SIP's are already used for more than 3 decades
( and also in damp climates ), the problem is elsewere.
Than one looks more in the direction of correct sealing of the joints, correct
placing of the vapor retarder without openings in it;
and correct assembling, and in such a damp climate a very good ventilation
(with heat recovery), to prevent condensation is of primordial importance,
for any closed construction in cold climate and shurely with organic 
building materials.
Moving to nevada or texas also prevent the problem :-)
My 2cents


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