The team at DAP shared practical tips to help you weatherize your home for winter. With National Energy Awareness Month coinciding with dropping temperatures nationwide, now is a great time to take steps that improve comfort and reduce energy costs.
According to the EPA ENERGY STAR program, improving your home’s envelope can cut heating and cooling costs by up to 20% and reduce total annual energy use by as much as 10%. ENERGY STAR also reports that air leakage is responsible for 25 to 40 percent of the energy used for heating and cooling in a typical home.
What is home sealing and weatherization, and why act now?
Weatherization refers to measures that improve the energy efficiency of a building’s envelope—the walls, roof, windows, and doors that separate indoor and outdoor environments. Air sealing is a key part of weatherization because it reduces the amount of cold outdoor air entering the home and stops warm indoor air from escaping during winter.
Air sealing is one of the most common, cost-effective, and straightforward energy-efficiency upgrades. Many air-sealing projects require only basic tools, a short trip to the hardware store, and a few hours of work. Sealing gaps and cracks not only lowers energy bills but also lessens environmental impact by reducing the energy needed to heat and cool your home.
Where do most air leaks occur?
Common leak locations include around windows and doors, but don’t overlook the attic and basement. Gaps in the attic can create a drafting effect that lets warm air escape and pulls cold air in through windows, doors, and basement openings.
Where might air leaks be unexpected?
Some leaks are hard to spot. Check around baseboards, basement pipe penetrations, ceiling light fixtures, exterior faucets, trim, vents, HVAC duct connections, light switches, and sink plumbing. Inspect beneath insulation as well—hidden gaps under insulation can still allow significant air movement.
How do you choose the right caulk or sealant?
Once you identify leaks, selecting the right product makes sealing straightforward. Use a quality acrylic-latex caulk for holes and gaps up to 1/4 inch; latex caulk is easy to apply and cleans up with soap and water. For larger gaps and openings, use a foam sealant designed for air sealing to ensure an effective thermal and air barrier.