Weatherize

[Rihanna]

To prepare oneself for the [outdoors] by adding or removing layers of clothing.
In [wintertime], the word [winterize] may be used, instead, to more specifically define the act of preparing oneself for the cold winter weather outside by putting on ones coat, hat, scarf, boots, and/or gloves.

[Britney]

Make (a house or other building) resistant to cold weather by adding insulation, storm windows, etc.

[Julene]

to protect a building against the bad effects of the weather, for example by stopping heat from escaping: