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Airtightness building code requirements by state in 2020 for residential construction

What states have the strictest airtightness requirements? (infographic)

Airtightness Building Codes Broken Down by State and City in the United States 2020
Airtightness Building Codes Broken Down by State and City in the United States 2020
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Jessica Kumor

Jessica is SIGA North America's Content Marketing Manager. It's her job to deliver you the latest research and practical tips for building air and weathertight buildings. When she's not interviewing customers and posting about building science you can find her refinishing furniture.

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