We performed a comprehensive energy efficiency retrofit for this home to improve thermal performance and indoor comfort. Our team installed spray foam insulation along the attic roof deck and in various storage spaces to create a superior air barrier and thermal seal. We also addressed key air leakage points throughout the residence to ensure a more stable indoor climate. To verify our work, we conducted professional blower door testing and used digital pressure gauges to measure the improved airtightness of the building envelope. These upgrades provide a more comfortable living environment and significantly enhance the home's overall energy performance.