b'PROJECT PROFILEPHOTOS COURTESY OF MORRISON HERSHFIELD.825 PACIFIC STREET VANCOUVERNew Passive House building tallest certified in B.C. By Warren HeeleyT he City of Vancouver, invalues are used throughout the building.BUILDING &partnership with developerThe building uses no fossil fuels andMECHANICAL SPECSGrosvenor Americas, hasmeets the citys 2016 zero-emissionsThe projects building envelope includes completed construction of astandard for new city-owned structures.steel stud exterior walls, insulated with new Passive House-certified152 mm of mineral wool bats between seven-storey building at 825Passive House is the worlds leadingthe studs and 203 mm of mineral wool Pacific Street in Vancouver. Constructedstandard in energy efficient construc- semi-rigid insulation on the exterior to create space for artists and non- tion, focusing on quality, comfortwalls. The thermal resistance ratingprofits in the city, the building has moreand energy efficiency. Certified build- is R-42.than 1,950 square metres of studio andings must achieve excellent indoor air office space, and is currently the tallestquality, simplified building operationsIn the basement, below-grade perim-certified Passive House structure in B.C. and improved occupant comfort. Theyeter walls and slab-on-grade insulation The building uses electric air sourcemay consume as much as 90 per centis extruded polystyrene of 127 mm, heat pumps for domestic hot water andless heating energy and 60 per centcreating a thermal resistance of R-27. The roof has 203 mm of XPS extruded heating and cooling. An energy recoveryless overall energy than conventionalpolystyrene, creating a thermal resis-ventilator provides filtered pre-heatedbuildings. They must also have quiettance of R-43. The windows are high-outside air to the buildings occupants,mechanical systems, very low air leakageperformance fiberglass with an overall U and high Passive House insulationrates and must eliminate energy waste.value of 0.80.14 BCBEC ELEMENTSA BCBEC PUBLICATION'