Caulking Heating and Cooling Hot Water Heaters Lighting Weatherization Room by Room Caulk is a pliable material used to fill holes, openings, and cracks found where two different materials or parts of a building are joined. Caulking keeps hot air outside your home in the summer and warm air inside your home in the winter. Cracks beneath baseboards at the bottom of walls. Holes where plumbing pipes and telephone wires enter the house. Holes around exhaust fans and dryer vents, and where sink and bathtub drains exit the house.
Summer is the best time to caulk.
The heat helps the caulk dry quickly and you don't have to worry about your project being interrupted or ruined by a rainstorm. Use SCE's shopping list and instructions to get started. SCE's Online Privacy Policy Copyright 2000 Southern California Edison. All Rights Reserved.