Started by jimgranite, January 22, 2007, 11:12:14 PM
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Quotethis is a real cold climate.
Quote#1... eliminate thermal bridging by the wood studs.#2.....is to avoid condensation inside the wall.
Quote...in cold and very cold regions the thickness of the foam sheathing should be determined by hygro-thermal analysis so that the interior surface of the foam sheathing remains above the dew point temperature of the interior air ...
QuoteAs far as thermally-leaky fasteners, I think a weighted average of material conductivity based on contribution to wall area might be appropriate
QuoteHopefully the interior vapor barrier...
QuoteHere is a very good technical article on building with insulated sheathing. Included many details such as how to handle windows and doors, housewrap, structural bracing, etc. These are folks who do their homework (Building Science Corp.)
QuoteIs the composite sheathing what we used to call black board?Because, strangely enough, it was black. Either nobody's using it any more or it gets covered up by tyvek.