167 - Vented Over-Roofs & Double-Stud Walls: Building Science Tradeoffs
Are vented over-roofs and double-stud walls worth the added complexity? Steve, Jake, and Pete debate two high-performance building assemblies where moisture management, thermal performance, cost, and constructability all come into play.
First up: vented over-roofs. Adding a ventilation space above the structural roof deck sounds straightforward, but the details get complicated quickly. The crew digs into ventilation gap depth, furring strip configurations, spacer mesh, roofing underlayments, and the challenges of integrating these systems with standing seam metal roofs. They also explore…
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