Sentence 3.4.1.2.(1)

  1. OE1

Objective

OE1 Resources

Attribution

Intent

Intent 1:

To limit the probability that the air leakage rate will be greater than the prescriptive limits for the proposed building using the performance path, which could lead to uncontrolled air leakage through the building envelope, which could lead to inaccuracy of the trade-off model, which could lead to overestimation of the energy used by the reference building or underestimation of the energy used by the proposed building, which could lead to excessive use of energy, which could lead to an unacceptable effect on the environment.

Intent 2:

To limit the probability that the design of the building envelope will not adequately account for the performance of the insulation by preventing the increase of overall thermal transmittance due to the effects of air leakage or convection, wetting, or moisture bypassing the plane of thermal resistance on the performance of the insulation, which could lead to excessive thermal transfer, which could lead to excessive use of energy, which could lead to an unacceptable effect on the environment.

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