One of the many valuable services that BC Building Science offers is mid-construction airtightness testing which plays a critical role in ensuring that a building performs the way it was designed to.  By executing these tests while a building is still being built, it is easier and less expensive to identify and fix air leakage issues.

What is involved and what are the benefits?

• A blower door test is conducted, similar to the final airtightness test.
• Leaks are identified using highly specialized tools and technology.

Catches Problems Early

• You can identify air leaks before drywall and finishes are installed.
• Fixes are easier and less expensive at this stage.
• Prevents having to tear down walls later to make necessary changes.
• Helps avoid failing compliance tests which can delay occupancy.

Improves Energy Efficiency

• Airtight buildings lose less heat in the winter and stay cooler in the summer.
• Reduces heating and cooling demand once occupied.
• Lowers long-term energy costs.
• Eliminates drafts and cold spots, helping to maintain a more consistent indoor temperature.
• Less outside noise is able to enter the building through gaps.

Prevents Moisture and Mold Issues

• Air leaks carry moisture into the walls.
• Early efficient sealing reduces the risk of condensation, mold growth, and rot and structural damage.

Aids With Code Compliance

• Helps meet requirements for energy codes.
• Greatly reduces the risk of failing final airtightness tests.

Testing at mid-construction upgrades airtightness from a last-minute gamble to a controlled, step-by-step process with highly improved prospects.