What you will know after this guide
- Why
- Work order
- After work
Why
Air leaks carry heat and moisture into assemblies. Reducing them improves comfort and durability.
Work order
Identify leaks, treat penetrations, verify ventilation, then add suitable insulation.
After work
A tighter home may require better-controlled ventilation and humidity monitoring.
Verified references
- Keeping The Heat In — comprehensive air leakage controlAir sealing
- Keeping The Heat In — insulation and air-barrier materialsInsulation materials
- Ventilation and the indoor environmentIndoor air quality
