b'PROJECT PROFILEwall insulation to R52. Five additionalare installed throughout the building,larger than the original drawings, inches of wool insulation were alsowhich creates a considerable amountstated Thibodeau. The room had to be added to the roof that increased itof natural light for the occupants.enlarged for the geothermal systems to R73. Lightweight cladding usingSignificant landscaping around theand the extensive equipment needed to fibreglass Cascadia clips was added tobuilding, including gardens and trellises,monitor how the building was operating the outside with a ventilated rainscreenallowed planting of water-efficient localtowards its sustainability goals. Withattachment system. plants and outdoor occupant areas.the energy use goal being net zero,Triple glazed and insulated glass withThe mechanical room was a challengemodelling has indicated that the system fibreglass frames are used for windowsfor the team in that when it was final- will have an excess of energy to return and doors, and 30 Solatube skylightsized, the room is actually 50-per-centto the electricity grid. As described on the Thibodeau Architecture website, With the introduction of leading-edge lighting controls, the planning of secure interior circulation and the separation of public and private spaces, special attention has been given to providing a fluid and pleasant experience for its occupants. The design incorporates WELL princi-ples for occupants well-being as well as the Rick Hansen Foundation principles for enhanced accessibility.THE AIR ANDVAPOUR BARRIERThe existing vapour barrier was found to be in reasonable shape. It is attached to the interior side of the walls. For the renovation, the vapour barrier had to be retaped to re-establish its integ-rity. A self-adhesive Malvest air barrier was added to the exterior plywood. Mechanical and electrical penetrations of the barrier were kept to a minimum except for the exterior lighting. The new vestibule and canopies on the outside of the building are constructed indepen-dently from the building structure to prevent thermal bridging.We actually used a BCBEC-recommended method to seal the pene-trations of the barrier, said Thibodeau. 12 BCBEC ELEMENTSA BCBEC PUBLICATION'