We need to caulk around the windows to prevent drafts.
Нам нужно заделывать вокруг окон, чтобы предотвратить сквозняки.
Definitionen
To apply a waterproof filler and sealant to joints or seams in various structures, such as around windows or doors, to prevent water or air from entering.
He decided to caulk around the bathtub to prevent any water from leaking onto the floor.