Where are the biggest air leaks in my basement?

The most common locations for basement air leaks include:

• Along the top of basement walls where the cement or block foundation comes into contact with the wood frame
• Holes for wiring and plumbing going into external walls
• Any holes or gaps where the electrical, gas or oil fill pipes go through the wall
• Furnace flues
• Leaky ducting or poorly fitted hot-air registers
• Around window and door framing
• Cracks in the foundation wall and slab
• Floor drains

For more information, visit ENERGY STAR®.

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