Blower Door Testing: Professional energy auditors use blower door tests to help determine a home's airtightness.
BC Step Code: The BC Energy Step Code establishes a series of measurable energy-efficiency requirements that builders must meet in communities that reference it in their building and development bylaws.
CANADA GREENER HOMES GRANT: The Canada Greener Homes Initiative provides grants and a loan for home evaluations and for retrofits. The eligible retrofits include home insulation, windows and doors, air sealing, and mechanical and renewable energy systems.