A UNBC building set a Canadian record for air tightness.
A test was performed Wednesday at the Wood Innovation Research Lab(WIRL) where it scored 0.07 air changes per hour at 50 Pascals pressure.
What this means is that little air enters or escapes the building, which improves its overall efficiency and interior air quality.
The WIRL is being built to the Passive House standard to serve as an ultra-energy through heating and cooling techniques and insulation.
Passive House buildings 
use 90 per cent less energy, when compared to standard structures, and needs a minimum air tightness of 0.6 air changes per hour at 50 Pascals pressure.
Once completed, the WIRL will provide students and researchers a chance to build and test large-scale integrated wood structures using engineered wood products such as Cross-Laminated Timber, Glue Laminated Timber and Laminated Veneer Lumber.