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Air tightness work consists in caulking the areas most susceptible of having air leaks in order to avoid air intake (cold air infiltration) on the one hand, and heat loss (warm air exfiltration) on the other hand.

The air tightness level is measured during a blower door test. It is expressed in the rate of air changes per hour (ACH). The evaluation report of your home will indicate this rate as well as the rate you could reach by carrying out air tightness work.

Financial assistance is granted based on whether the air infiltration reduction target indicated in your evaluation report is reached or exceeded.

Air tightness work
Factors considered in the calculationFinancial assistance
Reaching the air change per hour rate recommended in the evaluation report.$245
Exceeding the air change per hour rate recommended in the evaluation report by 10%.$365
Exceeding the air change per hour rate recommended in the evaluation report by 20%.$490
Reference: Participant's Guide

Before undertaking your renovations, you can consult the section on Helpful advice to learn more about air tightness.

Multiple-unit housing

Do you own a duplex, triplex or multiple-unit residential building? Financial assistance granted under the Rénoclimat program will be higher than for single-family homes. Consult the page Amounts for multiple-unit housing.

Notice

You are responsible for making sure that your home and the work concerned meet the program’s conditions and requirements

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