Improving air tightness
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.
|Factors considered in the calculation||Financial 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 (in French only).|
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.
Are you unsure about what you can do to seal leaks?
- Watch our Faites la chasse aux fuites d'air video (in French only)!
- Consult the section on Helpful advice to learn more about sealing leaks.
- Your Rénoclimat advisor can also help you make the best decisions.
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