weatherize
/ˈwɛðəraɪz/
verb
- To make a building or home more energy-efficient by sealing drafts, adding insulation, or improving windows and doors.
- We decided to weatherize our old house before winter to save on heating costs.
- The government offers tax credits to homeowners who weatherize their properties.
- She learned how to weatherize her apartment by caulking the windows and adding door sweeps.