It is important to have your home tested for building tightness and test the mechanical equipment after any energy efficient upgrades are installed. If a home is too tight (not enough air flow) it does not allow fresh air to be filtered through. The American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE), recommends a natural air exchange rate of 0.35 per hour to keep your home healthy and comfortable.

When working with Green CAT Services for energy efficient improvements, we always do a follow up test when the job is completed.