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Buildings and Their Systems
Air leakage is typically the most cost effective upgrade for older homes with balloon framing. It is possible to make a home TOO tight though which creates sick building syndrome and can accelerate mold and mildew growth from poor ventilation. How do you know if a home is too tight? The answer is in the Blower Door Section. There you can find how to measure the home's MVR (Minimum Ventilation Requirements). Remember, we want to "build homes tight, then ventilate them right."
There are several ventilation strategies to bring outside, fresh air in.
2a. Building Components
2b. Conservation Strategies
2c. Comprehensive Building Assessment Process
2d. Design considerations