Roof Air Barrier
Air sealing concepts that support performance
What it means
A roof air barrier is part of a broader building-envelope strategy to reduce uncontrolled air movement. Less air leakage can help reduce moisture movement and improve comfort. In practice, the roof still needs proper ventilation and watertight flashing details.
If you’re troubleshooting ice dams, attic moisture, or airflow issues, start with roof ventilation or a roof inspection.
Why air sealing matters in Utah
Utah homes deal with big temperature swings, snow load, and freeze/thaw cycles. When warm, moist air leaks into a cold attic, it can contribute to condensation, wet insulation, and even ice dam conditions. A well-detailed air barrier works together with ventilation and waterproofing details to protect the roof system.
- Draft reduction and more consistent indoor comfort
- Lower moisture movement into attic assemblies
- Better performance from insulation and ventilation
- Fewer surprises around penetrations and transitions
If you suspect leaks or water entry, see roof waterproofing and roof repairs.