Why Unvented Roofs are Best for Custom Homes

Moisture Management Energy Use Condensation Ventilation

Course Description

Venting roofs is a common approach to moisture management in every climate but it can pose serious (and under-appreciated) risks to moisture management in custom homes.  This course explains the physics behind the practice and reviews the most common design approach to venting before describing the conditions under which venting roofs might not be appropriate and what the alternatives are.

Course Instructor Christine Williamson

Course Length 13:30

Published 05 Aug 2022

Please note: viewing this course and completing this quiz do not currently count towards AIA CEU credits.

Keywords: building science, vented roofs, conditioned attics, custom homes, moisture control, energy efficiency, unvented roofs, mold, condensation, building science, roof details


About Building Science Fight Club

Christine Williamson - Assoc. AIA

Building Scientist | Instructor

Christine Williamson has spent her career in building science forensics, discovering why buildings fail and working with owners, architects, and builders to remedy the problems. She is the founder of the Instagram account @BuildingScienceFightClub, an educational project that teaches architects about building science and construction.