MARYLAND IECC Testing
Blower Door & Duct Leakage Compliance
Maryland has adopted the International Energy Conservation Code (IECC) statewide, with enforcement at the county level. All new residential construction must verify compliance through third-party air leakage and duct leakage testing.
Green Habitat Energy provides certified Blower Door and Duct Leakage (IDL) testing throughout Maryland.
Maryland Air Leakage Requirements
Most of Maryland falls within:
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Climate Zone 4 (Central & Coastal)
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Climate Zone 5 (Western MD)
Typical requirements:
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Maximum 3 ACH50 (Air Changes per Hour at 50 Pascals)
Testing must be performed using calibrated equipment and documented for permit approval.
Maryland Duct Leakage Requirements
Duct systems must be tested at 25 Pascals and meet:
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≤ 4 CFM per 100 sq ft (Rough-In Test), or
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≤ 8 CFM per 100 sq ft (Post-Construction)
Local jurisdictions may enforce amendments, which we stay current on.
Serving Maryland Builders
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Montgomery County
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Prince George’s County
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Howard County
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Anne Arundel
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Baltimore Region
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Southern Maryland
EmPOWER Maryland Program Support Services
Green Habitat Energy provides independent third-party testing and documentation services that may be used in support of EmPOWER Maryland utility incentive programs. We are not a utility program administrator but provide performance verification services that help projects meet required energy benchmarks.
Schedule IECC Testing
Green Habitat Energy provides professional third-party IECC verification services throughout the Mid-Atlantic region.
📍 Serving Builders, General Contractors, and Developers
📞 Schedule Early to Protect Your Timeline
EmPOWER Maryland is a registered state energy efficiency initiative. Green Habitat Energy is an independent testing and compliance company and is not a utility program administrator
Precision Testing. Proven Compliance.