Builders: Stricter Are Coming… Stay Ahead of the Curve

It can be costly to fail an air tightness test at practical completion. It can significantly delay completion time and add to the total cost of a build.

Thankfully, Doctor Air doesn’t always have to push prices higher. Here we outline our top 10 air tightness testing tips to help you avoid any unexpected problems and help you pass your build’s regulatory air tightness test.

1. Develop a clear air-tightness strategy from the outset to ensure success in design and construction.

2. Clearly define the air-tightness barrier across the entire heated envelope of the building on relevant drawings.

3. Provide detailed construction information for all penetrations through the air barrier, including beams, floor joists, and service penetrations.

4. Appoint an air tightness champion responsible for maintaining the air barrier throughout the project.

5. Brief all construction team members on the air tightness strategy, emphasizing the importance of air barrier integrity.

6. Ensure complete filling of mortar joints in brickwork to prevent air leakage.

7. Maintain a continuous, undamaged air barrier between heated rooms and non-heated loft space.

8. Ensure tight seals around all windows and doors, including door frames.

9. Maintain a continuous membrane in damp-proofing and repair any tears or punctures.

10. Balance airtightness with effective ventilation to prevent draughts, energy wastage, air quality issues, and condensation risks.