A Simplified Field Diagnostics Protocol for Envelope and Duct Leakage in Manufactured Homes

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Manufactured housing is subject to federal U.S. Department of Housing and Urban Development (HUD) code, which does not require envelope or standardized duct leakage testing. Errors in the home-siting process—along with occasional damage during transport—can lead to envelope and duct-leakage issues that go undetected unless they are severe enough to trigger a customer complaint due to moisture issues, poor comfort, or high energy bills. These problems could be mitigated if home installers or inspectors had a simple way to test for significant envelope or duct leakage at the completion of the siting process.

This report describes the evaluation of a simplified protocol for assessing envelope and duct leakage intended for home installers and inspectors.

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See our explanation of the protocol here, including an outline of recommended steps.

This report is part of a grant that Slipstream and several partners received from the U.S. Department of Energy (DOE) to reimagine HVAC in new manufactured housing. Read more about the full project here.