Summary

The HAAS approach considers the intended or unintended effects that retrofitting one component of a home can have on other components. By taking HAAS into consideration when planning each home retrofit, contractors and renovators can advise homeowners on the importance of well-planned whole-home renovations and offer retrofit solutions that will both fix existing issues with the home and avoid creating new issues.

The HPSC gratefully acknowledges the funding support for this guide through the Transition 2050 Residential Retrofit Acceleration Project. The project is supported through the Municipalities for Climate Innovation Program, delivered by the Federation of Canadian Municipalities and funded by the Government of Canada.