A duct leakage test, often called a duct "blaster" test, combines a small fan and a pressure gauge to pressurize a house’s duct system and accurately measure air leakage of the ductwork.
Again, it can be assumed that ducts leak in an existing home so it could be considered a test to be done at completion of energy-efficient repairs just as it is often done at the completion of new construction.
If a home is insulated with spray foam under the roof rafters of the attic, duct leakage is not a large problem unless the building has overly cold or warm rooms. Another reason not to do the duct blaster test until after the home energy-efficiency remodel is complete.
Before you sign on the dotted line to buy an existing home or signing the contract to build a hew home, there is a good use for tests. Click here.
For further information about Energy Audits or Renewable Energy inthis area of Texas contact