Duct test and duct testing reference IECC 2009 section 403.2.2 states that duct tightness must be tested at post construction or rough-in. A report must be submitted to the building inspector to verify compliance of all duct systems in unconditioned space.
At Infrared New England, our Duct Tests are performed with a Retrotec Q32 Duc-Tester for measuring duct leakage in residential and commercial buildings. The Duc-Tester will pressurize or depressurize a duct system (with the air handler off) from the main return grille (or blower access opening). An umbilical cord connects to the fan and ducts with a DM-2A that adjusts speed and measures the duct leakage automatically. The rest of the register openings are taped shut. Duct pressure is measured by static probes in the supply ducts.
A smoke test can be added to determine the exact locations of leakages throughout the system.
The following is the link to the Massachusetts state notification of the energy code requirements:
Massachusetts Stretch Energy Code Requirements.
If you are looking to have your new construction meet the code qualifications call us today to learn more or schedule a duct test for your home or business.