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Look up interior building code requirements across Connecticut. 17 counties with code data available. Verify requirements with your local AHJ.
Coastal areas subject to long-term erosion and storm-induced shoreline retreat. Construction setbacks and erosion-resistant foundation design may be required.
Connecticut coastal communities participate in NFIP with state-specific freeboard requirements
Entire state of Connecticut is designated as hurricane-prone region per building code. Historic impacts include 1938 Long Island Express Hurricane, Hurricane Gloria (1985), Hurricane Irene (2011), Superstorm Sandy (2012). Design wind speeds 110-130 mph.
Ice barrier underlayment is REQUIRED statewide on all roof eaves per IRC R905.1.2 as adopted in the Connecticut State Building Code. Entire state is Climate Zone 5A. Mean January temperatures range from 23°F (northwest Litchfield Hills) to 28°F (coastal Fairfield/New Haven). Heavy snowfall (40-80 inches/year) and freeze-thaw cycling create persistent ice dam risk statewide.
Connecticut has extensive historic districts requiring Historic District Commission approval for exterior modifications
Enter your address for jurisdiction-specific interior code references, special zone checks, and downloadable reports.
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