Often, the most spray foam insulation  air leaks in a home are around windows, doors and soffits, where ductwork enters the house, and attic hatches. Air leaks waste money, create uncomfortable drafts and make it harder for heaters and air conditioners to keep homes comfortable.

An attic that’s properly air-sealed saves over 15% per month on energy costs and reduces the wear and tear on heating and cooling systems. It’s also a key component to making the home more comfortable and safer for occupants year-round.

High-Performance Insulation Options

Start by inspecting the attic and marking areas where there are air leaks. Identify any gaps where insulation is missing, and seal them with caulk or expandable foam spray. You can also use a garbage bag to stuff the gap with insulation, but remember to wear an OSHA-approved particulate respirator to protect yourself from any possible asbestos or other contaminants in attic insulation.

If you find areas where the attic ductwork penetrates into the living space, apply foil HVAC tape to both the inside and outside of the duct. You can also insulate and seal the ductwork, as well as wrap it with insulation sleeves to prevent heat transfer.

Sealing attic hatches is a simple upgrade that can help prevent cold air from entering the home during the winter and hot air from seeping in during summer. You can easily do this yourself with a kit like the GE Home Energy Improvement Kit. For larger gaps in attics, a polyurethane insulating sealant such as GE Multipurpose Foam is an ideal solution. It expands to fill irregular spaces and can be cut with a utility knife for a clean, finished look. The sealant is durable and stretches with seasonal movement, so it won’t crack or sag over time.

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