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

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75. The thermal resistance of the insulated portion of a building assembly incorporating metal posts, studs or joists that act as thermal bridges must be 20% greater than the values shown in the Table in section 74, unless it can be shown that heat flow is not greater than the heat flow through a wood frame assembly of the same thickness.
O.C. 89-83, s. 75; O.C. 1721-85, s. 13.