b'PROJECT PROFILEcritical to achieving Passive careful installation of each buildingelectrical and mechanical services. This, House certification. section resulted in an air tightness ratingcoupled with positioning the barrier Due to limited views on the north sideof 0.19 ACH @ 50 pascalswell belowto prevent damage from interior wall of the building caused by an adjacentthe Passive House requirement of finishing, shelving and renovations,hotel, the stairs, elevator and service0.6 @ 50 pascals. will help improve the barriersrooms are all located along the northIt was also important to maintain thelong-term durability.wall. This approach minimized windowsintegrity of the air barrier throughoutMitigation or elimination of thermal on that side of the building, whichconstruction and the life of thebridges, which create heat loss and cold reduced heat loss and maximized solarbuilding. The air barrier is placed oninterior surfaces, is critical under the gains on the other walls. the exterior wallboard sheathing at thePassive House standardparticularly The buildings air tightness and airsteel stud infill walls and the concretefor steel and concrete structures. The barrier location were also extremelystructure. The steel stud framing design increased the steel stud thickness important. Meticulous design andthen functions as a service cavity for to 16 gauge, which allowed the cladding 16 BCBEC ELEMENTSA BCBEC PUBLICATION'