The greening of Canada's housing industry

The greening of the housing industry has gone mainstream, with four provinces now making it mandatory for all builders to wrap and insulate homes to toughened energy standards.

Starting on Jan. 1, Ontario, Nova Scotia, Manitoba and British Columbia changed their respective building codes, demanding that big and little contractors and custom, urban and suburban builders up the insulation factor, install air exchange fans and eliminate drafts by ensuring work crews carefully wrap all new homes in a tight vapour barrier.

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