The 2012 International Energy Conservation Code will require new dwellings built in Maryland, that requires a building permit, to have more insulation, a tighter envelope, tighter ducts, better windows, and more efficient lighting.
The State of Maryland was the first in the nation to adopt the 2012 version of the International Energy Conservation Code leading the country to a new era of efficient homes.
We are here to help builders & mechanical contractors navigate through these NEW codes as the adapt their trades to more energy efficient practices.
We provide consulting, training as well as the required third party certified Blower Door & Duct Tightness Testing.
Blower Door Testing requirements under the NEW 2012 IECC Code have become mandatory and more stringent. Builders now have to comply with both the checklist requirements and the requirement to conduct a blower-door test. The air-sealing checklist in the 2012 IECC is called Table R402.4.1.1, ―Air Barrier and Insulation Installation. Once you have completed the air-sealing checklist, you still need to conduct a blower-door test. According to section R402.4.1.2 of the 2012 IECC, the building or dwelling unit shall be tested and verified as having an air leakage rate of not exceeding 3 air changes per hour at a pressure of 0.2 inches w.g. (50 Pascals).
Duct Tightness Testing requirements under the NEW 2012 IECC Code has increased the stringency of the duct leakage thresholds. The code requires builders to test a duct system unless the duct system is located entirely inside of the home’s thermal envelope and meet the threshold requirement of 4 cfm per 100 square feet of conditioned floor area. The State of MD requires testing be conducted by a certified third party company. A written report of the results of the test shall be signed by the party conducting the test and provided to the County Inspection Agency.