Issue link: https://hi.iaq.net/i/148954
Measures shall be taken to minimize air movement across enclosure components separating dwelling units, and to dwelling units from garages, unconditioned crawl spaces, and unconditioned attics. 6.1.1 Multifamily Buildings All doors between dwelling units and common hallways shall be gasketed or made substantially airtight with weather stripping. 6.2 Instructions and Labeling Information on the ventilation design and/or ventilation systems installed, instructions on their proper operation to meet the requirements of this criterion, and instructions detailing any required maintenance (similar to that provided for HVAC systems) shall be provided to the owner and the occupant of the dwelling unit. Controls shall be labeled as to their function unless that function is obvious. 6.3 Clothes Dryers Clothes dryers shall be exhausted directly to the outdoors. Exception: Condensing dryers plumbed to a drain. 6.4 Combustion and Solid-‐Fuel Burning Appliances Combustion and solid-‐fuel burning appliances shall be direct exhaust-‐vented or direct-‐vented. Venting shall be installed in accordance with manufacturers' installation instructions, NFPA 54/ANSI Z223.1, National Fuel Gas Code, NFPA 31, Criterion for the Installation of Oil-‐Burning Equipment, or NFPA 211, Criterion for Chimneys, Fireplaces, Vents, and Solid-‐Fuel Burning Appliances, or other equivalent code acceptable to the building official. Atmospherically vented combustion appliances or solid-‐fuel burning appliances are not permissible inside the pressure boundary. 6.5 Airtightness/Separation Requirements 6.5.1 Garages When an occupiable space adjoins a garage, the design must minimize migration of contaminants to the adjoining occupiable space. Air seal the walls, ceilings, and floors that separate garages from occupiable space. To be considered air sealed, all joints, seams, penetrations, openings between door assemblies and their respective jambs and framing, and other sources of air leakage through wall and ceiling assemblies separating the garage from the residence and its attic area shall be caulked, gasketed, weatherstripped, wrapped, or otherwise sealed to limit air movement. Doors between garages and occupiable spaces shall be gasketed or made substantially airtight with weather stripping. Install an automatic door closer on all connecting doors between living spaces and attached garages. 6.5.2 Space-‐Conditioning System Ducts