E-1.1, r. 1 - Regulation respecting energy conservation in new buildings

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117. Subject to Sentence 4 of Articles to of the National Building Code 1990, equipment used exclusively to discharge contaminated air to the outside must be equipped with a damper that is power-assisted or of the gravity type.
O.C. 89-83, s. 117; O.C. 1721-85, s. 22; O.C. 1211-92, s. 17.