Caulking is a year-round job. In the spring, we caulk the exterior of our home to get it ready for painting. In the summer, we recaulk tubs and showers that may have mildewed during the winter and ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Caulk is used to create a waterproof or insulating seal between building materials.

Because as much as 80 percent of air leakage occurs in areas other than windows and doors, caulking is an absolute winter necessity. Use Caulk to Seal Leaks Before Winter After determining which areas ...