| 9.32.1. |
General |
| 9.32.1.1. |
Application
- This Section applies to the ventilation of rooms and spaces in residential occupancies.
- Ventilation of all other occupancies shall comply with Part 6.
- A storage garage for up to 4 motor vehicles that serves a residential occupancy may be considered to be part of that occupancy.
- Systems used for ventilation shall conform to the energy efficiency requirements in Section 9.36.
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| 9.32.1.2. |
Required Ventilation
- Every residential occupancy shall incorporate
- provisions for non-heating-season ventilation in accordance with Subsection 9.32.2., and
- except as required by Sentences (2) and (3), if supplied with electrical power and a heating system, provisions for heating-season ventilation in accordance with Part 6.
- A self-contained heating-season ventilation system serving a single dwelling unit shall comply with Subsection 9.32.3. (See Note A-9.32.1.2.(2).)
- In houses that contain a secondary suite, heating-season ventilation need not be provided for
- exits,
- public corridors, and
- ancillary spaces that are not within a dwelling unit, except as provided in Sentence (4). (See Note A-9.32.1.2.(2).)
- Where ancillary spaces described in Clause (3)(c) contain exhaust devices, these spaces shall be provided with make-up air in accordance with Article 9.32.3.8.
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| 9.32.1.3. |
Venting of Laundry-Drying Equipment
- Exhaust ducts or vents connected to laundry-drying equipment shall discharge directly to the outdoors.
- Exhaust ducts connected to laundry-drying equipment shall be
- independent of other exhaust ducts,
- accessible for cleaning, and
- constructed of a smooth corrosion-resistant material. (See Note A-9.32.1.3.(2).)
- Where collective venting of multiple installations of laundry-drying equipment is used, the ventilation system shall
- be connected to a common exhaust duct that is vented by one central exhaust fan and incorporates one central lint trap,
- include an interlock to activate the central exhaust fan when laundry-drying equipment is in use, and
- where required by Article 9.32.3.8., be provided with make-up air.
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