Insulation is a loss or gain of air in and out of a building. This happens unintentionally when constructing the outer perimeter of the building and typically will take place through:
- Joints, gaps and cracks in construction
- Gaps created around windows and doors
- Gaps where services enter and exit the building
Airtightness on buildings is a design to eliminate air leakage and the result of this is measured in “air changes per hour”. Current building regulations require all new dwellings, domestic and commercial have adequate airtightness.
