Air leakage from your air duct to your entire house can increase heating and cooling costs to over 30% and contribute to comfort & health problems for the homeowners. Our team of technicians have been hard at work meeting the demand for Blower Door Testing and Duct Blaster Testing for builders & contractors that need to meet the 2012 NC Energy Code. But what exactly are these tests?
A Blower Door Test (shown above) is the most efficient way to find hidden leakage within your house. In short, a Blower Door uses a fan to force air into, or force air out of the home, and the leakiness of the home is determined by gauges on the equipment. We measure the leakage rate in air changes per hour, or ACH, estimating how many times in one hour the entire volume of air inside the house leaks to the outside. The more air leakage, the harder the fan works to maintain the pressure of 50 Pascals between the inside and outside of the home.
A Duct Leakage Test is a similar concept to the Blower Door Test except that it is specific to the area of the duct work throughout the house. The Duct Blaster® Test also combines a small fan and a pressure gauge to pressurize the entire duct system measuring its air leakage in cubic feet per minute, or CFM. For an accurate measurement, the technician needs to know the square footage of the house. In order to conduct a Duct Leakage Test the entire ductwork throughout the house needs to be installed, but the HVAC unit does not need to be operating.
Above and Beyond Energy is a residential energy consultant provider. We offer many professional services for our clients and have a skilled team of trained technicians to provide those services. If you are looking for an experienced quality Blower Door Test technician or Duct Blaster® Test technician please call our office at 910.791.7123 to schedule your appointment.