#700: Best of FHB Podcast, Volume 9

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Always install a well-sealed and insulated interior door at the base of a bulkhead or cellar entry to effectively separate the conditioned space from the outdoors.
For SIP panel construction, meticulous air sealing of all interior and exterior seams using appropriate tapes and foams is paramount to prevent moisture-related rot and failures.
Avoid traditional can lights in insulated ceilings; opt for modern, surface-mounted LED fixtures that seal against the ceiling plane to prevent thermal bridging and air leakage.
When detailing metal roofs over SIPs, prioritize high-temperature underlayment and consult the manufacturer for specific installation guidelines, especially if using purlins for ventilation.
Consider dense-pack cellulose insulation for unvented sloped ceilings, even if it requires professional installation, as it can offer superior thermal performance and moisture control compared to batt insulation.
Be aware of capillary action in older homes; when tightening a structure during a remodel, ensure proper capillary breaks are in place to prevent moisture wicking from the foundation into wood framing.
If addressing a leaky foundation-to-sheathing transition in an existing home, a gunnable urethane adhesive can be used from the exterior, but removing siding for better access and a more thorough seal may be necessary.
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