weatherize

[weth -uh-rahyz]

verb (used with object), weath·er·ized, weath·er·iz·ing.

to make (a house or other building) secure against cold or stormy weather, as by adding insulation, siding, and storm windows.

Also especially British, weath·er·ise.

Origin of weatherize

First recorded in 1940–45; weather + -ize

Related formsweath·er·i·za·tion, noun