Musings of an Energy Nerd

Answers to Common Roof Venting Questions

Advice on the best ways to vent (or not to vent) attics and cathedral ceilings

Building Science

Soffit-to-Ridge Roof Venting, Part 1

Does air flow in cathedral roof assemblies really follow those arrows?

Musings of an Energy Nerd

How to Build an Insulated Cathedral Ceiling

Whether you decide to make it vented or unvented, get the details right — because every cathedral ceiling offers opportunities to make big mistakes

Q&A Spotlight

Can Cellulose be Used in an Unvented Roof?

Without ridge or soffit vents, the concern is moisture accumulation

Building Science

Lstiburek’s Rules for Venting Roofs

You need an airtight ceiling, lots of air flow, plenty of soffit vents, and deep insulation at the attic perimeter