| 5.9.2. |
Windows, Doors and Skylights |
| 5.9.2.1. |
General
- This Subsection applies to windows, doors and skylights, including their components, that separate
- interior space from exterior space, or
- environmentally dissimilar interior spaces.
- For the purpose of this Subsection, the term "skylight" refers to unit skylights, roof windows and tubular daylighting devices.
- Where a wired glass assembly is installed in a required fire separation, it need not conform to the requirements of this Subsection.
(See Note A-5.9.2.1.(3).)
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| 5.9.2.2 |
Applicable Standards
(See Note A-5.9.2.2.)
- Windows, doors and skylights shall conform to the requirements in
- AAMA/WDMA/CSA 101/I.S.2/A440, "NAFS - North American Fenestration Standard/Specification for Windows, Doors, and Skylights," and
- CSA A440S1, "Canadian Supplement to AAMA/WDMA/CSA 101/I.S.2/A440-11, NAFS - North American Fenestration Standard/Specification for Windows, Doors, and Skylights."
- Performance grades for windows, doors and skylights shall be selected according to the Canadian Supplement referenced in Clause (1)(b) so as to be appropriate for the conditions and geographic location in which the window, door or skylight will be installed.
- Windows, doors and skylights shall conform to the performance grades selected in Sentence (2) when tested in accordance with the Harmonized Standard referenced in Clause (1)(a).
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| 5.9.2.3. |
Structural and Environmental Loads, Air Leakage and Water Penetration
- Windows, doors, skylights and their components shall be designed and constructed in accordance with
- Article 5.1.4.1., Section 5.4. and Section 5.6., or
- Article 5.9.2.2., where they are covered in the scope of the standards listed in Sentence 5.9.2.2.(1).
(See Note A-5.9.2.3.(1).)
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| 5.9.2.4. |
Heat Transfer
- Windows, doors and skylights shall meet the heat transfer performance requirements stated in Section 5.3. (See Note A-5.3.1.2.)
- Except as provided in Sentence (3), all metal-framed glazed assemblies separating interior conditioned space from interior unconditioned space or exterior space shall incorporate a thermal break to minimize condensation.
- Metal-framed glazed assemblies need not comply with Sentence (2) where these assemblies are
- storm windows or doors, or
- windows or doors that are required to have a fire-protection rating.
(See Note A-5.9.2.4.(3).)
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