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ES+H Multifamily Building Upgrades_508c_02 09 2016

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Energy Savings Plus Health | INDOOR AIR QUALITY GUIDELINES FOR MULTIFAMILY BUILDING UPGRADES 47 PRIORITY ISSUE 16.0 COMPARTMENTALIZATION TO PREVENT ODOR OR UNWANTED AIR TRANSFER (continued) ASSESSMENT PROTOCOLS (AP) MINIMUM ACTIONS (MA) EXPANDED ACTIONS (EA) separating dwelling units in the same building, walls separating sleeping units in the same building, shall be treated as fire partitions. • If new ventilation systems are being installed, avoid pressurizing corridors or depressurizing dwelling units more than 5 Pascals below the pressure in adjacent units. • If common hallways are intentionally pressurized with respect to the dwelling units, then doors in the dwelling units leading to the common hallways need not be weather-stripped, provided that dwelling units are at a negative pressure relative to the hallways of 1 Pascal or greater when the doors between the hallway dwelling unit are closed. Notes: (1) Compartmentalization is intended to reduce odors due to unwanted air transfer, but it does not eliminate them. (2) Compartmentalization activities must consider ventilation system design and operating characteristics to reduce driving forces for unintended airflow between dwelling units. (3) When air sealing, the air barrier assembly must have been evaluated by the Air Barrier Association of America (ABAA) and installed according to manufacturer's specifications. Fire-rated assemblies must be sealed using approved fire-rated materials. The fire rating requirements supersede the ABAA evaluation requirement. References for Priority Issue 16.0 Compartmentalization to Control Odor or Unwanted Air Transfer: ABAA: Air Barrier Materials, Components, Assemblies & Systems ASHRAE: Standard 62.2-2013 – Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings ASTM E779-10: Standard Test Method for Determining Air Leakage Rate by Fan Pressurization ASTM E1186-03 (2009): Standard Practices for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems ASTM E1827-11: Standard Test Methods for Determining Airtightness of Buildings Using an Orifice Blower Door DOE: Standard Work Specifications for Multi-Family Home Energy Upgrades, Section 3: Air Sealing EPA: Building Air Quality Action Plan, Step 2: Develop an IAQ Profile of Your Building, Part 2: Conduct a Walkthrough International Code Council: International Building Code, 2012 Edition UL: Fire-Resistance and Smoke Protection

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