Uploaded September 2026 | Updated September 2026, 2 hours ago

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*An Essential Guide To Mold Resistant Construction (eBook)* : asiri-designs.com/shop/ols/products/essential-guide-to-mold-resistant-construction

Even when properly ventilated and air-sealed, attics in humid coastal regions like the Pacific Northwest can still develop mold on the roof sheathing due to night sky cooling and condensation. Drawing on technical research from RDH Building Science, this video examines why modern high-performance roofs are unexpectedly vulnerable to this niche moisture problem. We also discuss how historical changes in building materials and insulation have impacted roof resilience, along with potential design solutions for future construction.

*Link to the RDH's report* : portlandoregon.gov/bds/appeals/index.cfm?action=getfile&appeal_id=18940&file_id=23498

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