9.7.

(1) Windows and skylights shall conform to the requirements of this Section.

(1) Except as required in Article 9.7.1.3. and Sentence (3), the minimum window glass area for rooms in buildings of residential occupancy or that are used for sleeping shall conform to Table 9.7.1.2.

(2) The unobstructed glass area of a door or skylight is considered equivalent to that of a window.

(3) Work areas in live/work units shall conform to Clause 3.7.2.1.(2)(a).

(4) Where rooms with different requirements for window glass area are combined as described in Sentence 9.5.1.4.(1), the more restrictive requirement shall govern.

(1) Except where a door on the same floor level as the bedroom provides direct access to the exterior, every floor level containing a bedroom in a suite shall be provided with at least 1 outside window that,

(a) is openable from the inside without the use of tools,

(b) provides an individual, unobstructed open portion having a minimum area of 0.35 m² with no dimension less than 380 mm, and

(c) maintains the required opening described in Clause (b) without the need for additional support.

(2) Except for basement areas, the window described in Sentence (1) shall have a maximum sill height of 1 000 mm above the floor.

(3) When sliding windows are used, the minimum dimension described in Sentence (1) shall apply to the openable portion of the window.

(4) Where the sleeping area within a live/work unit is on a mezzanine with no obstructions more than 1 070 mm above the floor, the window required in Sentence (1) may be provided on the main level of the live/work unit provided the mezzanine is not more than 25% of the area of the live/work unit or 20 m² whichever is less and an unobstructed direct path of travel is provided from the mezzanine to this window.

(1) Where a window required in Article 9.7.1.3. opens into a window-well, a clearance of not less than 550 mm shall be provided in front of the window.

(2) Where the sash of a window referred to in Sentence (1) swings towards the window-well, the operation of the sash shall not reduce the clearance in a manner that would restrict escape in an emergency.

(3) Where a protective enclosure is installed over the window-well referred to in Sentence (1), such enclosure shall be openable from the inside without the use of keys, tools or special knowledge of the opening mechanism.

(1) In localities where termites are known to occur and where windows or other openings at or below grade contain wood elements, the bottom of window wells or adjacent ground shall be at least 150 mm below the nearest wood unless the wood is pressure-treated with a chemical toxic to termites in accordance with Article 9.3.2.9.v1v2

(1) Except as provided in Sentence (2), openable windows in buildings of residential occupancy shall be protected by,

(a) a guard in accordance with Subsection 9.8.8., or

(b) a mechanism capable of controlling the free swinging or sliding of the openable part of the window so as to limit any clear unobstructed opening to not more than 100 mm measured either vertically or horizontally where the other dimension is greater than 380 mm.

(2) Windows need not be protected in accordance with Sentence (1) where,

(a) the window serves a dwelling unit that is not located above another suite,

(b) the only opening greater than 100 mm by 380 mm is a horizontal opening at the top of the window,

(c) the top surface of the window sill is located more than 480 mm above the finished floor on one side of the window, or

(d) the window is located in a room or space with the finished floor described in Clause (c) located less than 1 800 mm above the floor or ground on the other side of the window.

(1) Air infiltration of exterior windows shall not exceed 0.775 L/s for each metre of sash crack when tested at a pressure differential of 75 Pa in conformance with ASTM E283, “Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen”.

(1) Windows shall conform to,

(a) CAN/CSA-A440, “Windows”, and

(b) the CAN/CSA-A440.1, “User Selection Guide to CSA Standard CAN/CSA-A440-00 Windows”.

(1) Glass shall conform to,

(a) CAN/CGSB-12.1-M, “Tempered or Laminated Safety Glass”,

(b) CAN/CGSB-12.2-M, “Flat, Clear Sheet Glass”,

(c) CAN/CGSB-12.3-M, “Flat, Clear Float Glass”,

(d) CAN/CGSB-12.4-M, “Heat-Absorbing Glass”,

(e) CAN/CGSB-12.8, “Insulating Glass Units”,

(f) CAN/CGSB-12.10-M, “Glass, Light and Heat/Reflecting”,

(g) CAN/CGSB-12.11-M, “Wired Safety Glass”, or

(h) ASTM E2190, “Insulating Glass Unit Performance and Evaluation”.

(1) Glass in windows, sloped glazing and skylights shall be designed in conformance with CAN/CGSB-12.20-M, “Structural Design of Glass for Buildings”.

(1) The sealing compound used to seal the glass component of a factory-sealed double-glazed unit to the sash component shall be compatible with the material used to edge seal the glass component.

(1) Caulking shall be provided between window frames or trim and the exterior siding or masonry in conformance with Subsection 9.27.4.

(1) Except as provided in Article 9.7.5.2., transparent panels that could be mistaken as a means of egress shall be protected by barriers or railings.

(1) Sliding glass partitions that separate a public corridor from an adjacent occupancy and that are open during working hours need not conform to Article 9.7.5.1. and Sentence 9.6.6.2.(3)v1, except that such partitions shall be suitably marked to indicate their existence and position.

(1) Except as provided in Sentence (2), windows over stairs, ramps and landings that extend to less than 1 070 mm above the surface to the treads, ramp or landing shall be,

(a) protected by guards, in accordance with Subsection 9.8.8., or

(b) non-openable and designed to withstand the specified lateral loads for guards as provided in Articles 4.1.5.15.v1 or 9.8.8.2.v1

(2) In dwelling units, windows over stairs, ramps and landings that extend to less than 900 mm above the surface to the treads, ramp or landing shall be,

(a) protected by guards, in accordance with Subsection 9.8.8., or

(b) non-openable and designed to withstand the specified lateral loads for guards as provided in Articles 4.1.5.15.v1 or 9.8.8.2.v1

(1) Windows in public areas that extend to less than 1 000 mm from the floor and are located above the second storey in buildings of residential occupancy shall be,

(a) protected by guards in accordance with Subsection 9.8.8., or

(b) non-openable and designed to withstand the lateral design loads for guards as provided in Articles 4.1.5.15.v1 or 9.8.8.2.v1

(1) In dwelling units, windows, any part of which is located within 2 000 mm of adjacent ground level, shall conform to the requirements for resistance to forced entry as described in Clause 10.13 of CAN/CSA-A440-M, “Windows”.

(1) Plastic skylights shall conform to CAN/CGSB-63.14-M, “Plastic Skylights”.

(1) Factory-built glass skylights shall meet the performance requirements of CAN/CGSB-63.14-M, “Plastic Skylights”.