Extreme heat is becoming an increasingly pressing issue in Canada, with heatwaves affecting communities across the country and contributing to health risks, particularly for vulnerable populations. Climate change is expected to intensify these events, with rising temperatures leading to longer and more frequent heatwaves, increasing the strain on energy systems and public health services. High temperatures can cause heat-related illnesses and exacerbate existing health conditions, while also damaging building materials and reducing indoor comfort. Our extreme heat hazard database offers practical solutions for enhancing home resilience, including retrofitting tips for improved insulation, ventilation, and energy efficiency.