Yes, you are required to include documentation demonstrating that the project has reduced annual leakage to 5% or less, and the total leakage over the remaining life to less than 30%.
Question
<p>The prerequisite states that if CFCs are maintained in the building, the project building must reduce annual leakage to 5% or less, and total leakage over the remaining life to less than 30%. Do we need to submit documentation demonstrating the leakage rates?</p>