The following points are illustrated in the diagram at the bottom of this page:
- In SIP construction, the OSB and EPS insulation is the vapor barrier.
- Drywall screws and electrical receptacles do not compromise this vapor barrier.
- The EPS’s true R-value also prevents temperature fluctuations, thus preventing condensation from occuring.
Consequently, mold will not result with SIP exterior wall construction.
Pages
Part 1 - Why Mold Grows
Part 2 - Typical 6-mil Poly Vapor Barrier Installation
Part 3 - How SIPs Prevent Mold Growth
Part 4 - The Best Insurance is Prevention
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