Learning Center

Roof Ventilation Guide for Replacement Projects

Ventilation can affect heat, moisture, and the long-term performance of some roofing assemblies. A replacement project is an opportunity to review the existing system.

Intake and exhaust work together

Many ventilation strategies rely on balanced intake and exhaust rather than simply adding more roof vents.

The house matters

Attic configuration, insulation, climate, roof design, and existing mechanical systems can affect the appropriate approach.

Ask what is included

If ventilation changes are proposed, ask which products will be installed, where intake and exhaust will occur, and how the design was determined.

Follow applicable requirements

The roofing provider should account for manufacturer instructions and applicable local code requirements.

Roofing Help USA note: This site focuses on roof replacement and new roof installation. It does not present Roofing Help USA as the contractor performing the work.