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Title: Building America Case Study: Apartment Compartmentalization with an Aerosol-Based Sealing Process - Queens, NY; Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE)

Air sealing of building enclosures is a difficult and time-consuming process. Current methods in new construction require laborers to physically locate small and sometimes large holes in multiple assemblies and then manually seal each of them. The innovation demonstrated under this research study was the automated air sealing and compartmentalization of buildings through the use of an aerosolized sealant, developed by the Western Cooling Efficiency Center at University of California Davis.CARB sought to demonstrate this new technology application in a multifamily building in Queens, NY. The effectiveness of the sealing process was evaluated by three methods: air leakage testing of overall apartment before and after sealing, point-source testing of individual leaks, and pressure measurements in the walls of the target apartment during sealing. Aerosolized sealing was successful by several measures in this study. Many individual leaks that are labor-intensive to address separately were well sealed by the aerosol particles. In addition, many diffuse leaks that are difficult to identify and treat were also sealed. The aerosol-based sealing process resulted in an average reduction of 71% in air leakage across three apartments and an average apartment airtightness of 0.08 CFM50/SF of enclosure area.
Publication Date:
OSTI Identifier:
Report Number(s):
NREL/FS-5500-63666; DOE/GO-102015-4621
Resource Relation:
Related Information: Work performed by Consortium for Advanced Residential Buildings (CARB), Norwalk, Connecticut
Research Org:
NREL (National Renewable Energy Laboratory (NREL), Golden, CO (United States))
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B)
Contributing Orgs:
Consortium for Advanced Residential Buildings (CARB), Norwalk, Connecticut
Country of Publication:
United States
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION ?Residential; Residential Buildings; CARB; Building America; Steven Winter Associates, Inc.; SWA; Consortium for Advanced Residential Buildings; Western Cooling Efficiency Center at University of California Davis; Compartmentalization; Air sealing building enclosures; Aerosol sealant; Apartments; Dwellings; Demising walls; Multifamily