Here is an interesting article from the US Dept of Energy that is targeted at single family home owners, but much of it applies to multi-family housing as well: “Defend yourself from unwanted spirits and high energy bills by sealing air leaks around windows, doors and air ducts. Before air sealing, conduct a visual inspection to detect leaks or hire a professional for a more thorough measurement of your home’s airflow. Check out more tips to stop cold air — and spooks — from invading your home…..” Read More

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