9.10.15.

(1) This Subsection applies to buildings that,

(a) contain only dwelling units and have no dwelling unit above another dwelling unit, and

(b) are not designed in accordance with Subsection 9.10.14.

(1) The area of an exposing building face shall be,

(a) taken as the exterior wall area facing in one direction on any side of a building, and

(b) calculated as,

(i) the total area measured from the finished ground level to the uppermost ceiling,

(ii) the area for each fire compartment where a building is divided into fire compartments by fire separations with fire-resistance ratings not less than 45 min, or

(iii) where Table 9.10.15.4.v1 is used to determine maximum area of glazed openings, the area of any number of individual vertical portions of the wall measured from the finished ground level to the uppermost ceiling.

(2) For the purpose of using Table 9.10.15.4.v1 to determine the maximum permitted area of glazed openings in an irregularly-shaped or skewed exterior wall, the location of the exposing building face shall be taken as a vertical plane located so that there are no glazed openings between the vertical plane and the line to which the limiting distance is measured.

(3) For the purpose of using Table 9.10.15.5. to determine the required type of construction, cladding and fire-resistance rating for an irregularly-shaped or skewed exterior wall,

(a) the location of the exposing building face shall be taken as a vertical plane located so that no portion of the actual exposing building face is between the vertical plane and the line to which the limiting distance is measured, and

(b) the value for the maximum aggregate area of glazed openings in Table 9.10.15.5. shall be determined using the limiting distance measured from the location described in Clause (a).

(4) The required limiting distance for an exposing building face is permitted to be measured to a point beyond the property line that is not the centre line of a street, lane or public thoroughfare if,

(a) the owners of the properties on which the limiting distance is measured and the municipality enter into an agreement in which such owners agree that,

(i) each owner covenants that, for the benefit of land owned by the other covenantors, the owner will not construct a building on his or her property unless the limiting distance for exposing building faces in respect of the proposed construction is measured in accordance with the agreement,

(ii) the covenants contained in the agreement are intended to run with the lands, and the agreement shall be binding on the parties and their respective heirs, executors, administrators, successors and assigns,

(iii) the agreement shall not be amended or deleted from title without the consent of the municipality, and

(iv) they will comply with such other conditions as the municipality considers necessary, including indemnification of the municipality by the other parties, and

(b) the agreement referred to in Clause (a) is registered against the title of the properties to which it applies.

(5) Where an agreement referred to in Sentence (4) is registered against the title of a property, the limiting distance for exposing building faces in respect of the construction of any buildings on the property shall be measured to the point referred to in the agreement.

(1) Where there is no fire department or where a fire department is not organized, trained and equipped to meet the needs of the community, the required limiting distance determined from Sentences 9.10.15.4.(2)v1, (5) and (6) and Sentence 9.10.15.5.(6), shall be doubled for a building that is not sprinklered.

(1) Except as provided in Sentences (3) to (5), the maximum area of glazed openings in an exposing building face shall,

(a) conform to Table 9.10.15.4.,

(b) conform to Subsection 3.2.3., or

(c) be equal to or less than the limiting distance squared.

(2) Where the exposing building face is divided into individual portions as described in Subclause 9.10.15.2.(1)(b)(iii),

(a) the maximum glazed area of each individual portion shall be determined in accordance with Sentence (1),

(b) the maximum aggregate glazed area for the entire exposing building face shall be the sum of the individual maximum glazed areas determined from Clause (a), and

(c) except as required in Sentence (4), the maximum aggregate glazed area determined in Clause (b) is permitted to be distributed anywhere on the exposing building face.

(3) The limits on area of glazed openings shall not apply to the exposing building face of a dwelling unit facing a detached garage or accessory building where,

(a) the detached garage or accessory building serves only one dwelling unit,

(b) the detached garage or accessory building is located on the same property as that dwelling unit, and

(c) the dwelling unit served by the detached garage or accessory building is the only major occupancy on the property.

(4) Except as permitted in Sentence (5), openings in a wall having a limiting distance of less than 1.2 m shall be protected by closures, of other than wired glass or glass block, whose fire-protection rating is in conformance with the fire-resistance rating required for the wall.

(5) An opening in an exposing building face not more than 130 cm² shall not be considered an unprotected opening.

(1) Except as provided in Sentences (2) to (4) and (6), each exposing building face and any exterior wall located above an exposing building face that encloses an attic or roof space shall be constructed in conformance with Table 9.10.15.5. and Subsection 9.10.8.,

(a) for the exposing building face as a whole, or

(b) for any number of separate portions of the exposing building face.

(2) Sentence (1) does not apply where,

(a) the limiting distance is not less than1.2 m,

(b) the limiting distance is less than 1.2 m but not less than 0.6 m, provided that the exposing building face has a fire-resistance rating of not less than 45 min, or

(c) the limiting distance is less than 0.6 m, provided that the exposing building face has a fire-resistance rating of not less than 45 min and is clad with noncombustible material.

(3) Where the limiting distance is less than 0.6 m, cladding on the exposing building face and on exterior walls located above the exposing building face that enclose an attic or roof spaces need not be noncombustible, provided the cladding,

(a) conforms to Subsection 9.27.13.,

(b) is installed without furring members over not less than 12.7 mm thick gypsum sheathing or over masonry,

(c) has a flame-spread rating not more than 25 when tested in accordance with Sentence 3.1.12.1.(2), and

(d) is not more than 2 mm in thickness exclusive of fasteners, joints and local reinforcements.

(4) The requirements for fire-resistance rating, type of construction and type of cladding need not apply to the exposing building faces of a dwelling unit and a detached garage or accessory building that face each other, where,

(a) the detached garage or accessory building serves a single dwelling unit,

(b) the detached garage or accessory building is located on the same property as that dwelling unit, and

(c) the dwelling unit served by the detached garage or accessory building is the only major occupancy on the property.

(5) Except for buildings containing 1 or 2 dwelling units only, combustible projections on the exterior of a wall that are more than 1 000 mm above ground level, such as balconies, platforms, canopies, eave projections and stairs, and that could expose an adjacent building to fire spread, shall not be permitted within,

(a) 1.2 m of a property line or the centre line of a public way, or

(b) 2.4 m of a combustible projection on another building on the same property.

(6) Heavy timber and steel columns need not conform to the requirements of Sentence (1) provided the limiting distance is not less than 3 m.