Caulking

Caulking is an airtight compound frequently made of silicone or latex, used to fill cracks and holes in walls, ceilings, window frames, and the gaps where windows and door frames meet wall materials such as brick or siding. It is packaged in a tube that is squeezed, or in a cylinder that is inserted into a "caulking gun." This device applies pressure to the tube and aids in delivering a more uniform application of caulk. A line of caulk is often referred to as a "bead."

When caulking is applied correctly, it fills the cracks and holes in your home, forming an "air seal" that reduces heat loss in the winter, and prevents heat from entering in the summer. Be sure to choose the correct form of caulk for your particular application, and most importantly, follow the manufacturer's directions carefully.

Although caulking is one of the easiest and least expensive energy improvements, it can have a measurable impact on your utility bill. This "do-it-yourself" project is an affordable first step to conserving energy. For most people, time is the biggest investment.

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