weathertight

adj

1. Sealed against the wind and rain.

   “In one week, my house was made weather-tight, and thoroughly cleansed from top to bottom […]”

   “There's a rubble-stone / Unfit for the front o’ the building, stuff to stow / In a gap behind and keep us weather-tight; / There’s porphyry for the prominent place. Good lack!”

   “Their brownstone still stands, and it is still snug and weathertight.”