jswizzle3737/ontario_laws_and_regs huggingface dataset:
Notes to Table 9.26.3.1.:
9.27.5.4. Size and Spacing of Fasteners (1) Nail or staple size and spacing for the attachment of cladding and trim shall conform to Table 9.27.5.4. Table 9.27.5.4.   Attachment of Cladding Forming Part of Sentence 9.27.5.4.(1)  Column 1

Column 2

Column 3

Column 4


Type of Cladding

Minimum Nail or Staple Length, mm

Minimum Number of Nails or Staples

Maximum Nail or Staple Spacing, mm (o.c.)


Wood trim

51

—

600


Lumber siding or horizontal siding made from sheet metal

51

—

600


Metal cladding

38

—

600 (nailed to framing)


400 (nailed to sheathing only)


Wood shakes

 

 

 


up to 200 mm in width

51

2

—


over 200 mm in width

51

3

—


Wood shingles 

 

 

 


200 mm in width

32

2

—


over 200 mm in width

32

3

—


Asbestos-cement shingles

32

2

—


Panel or sheet type cladding

 

 

 


up to 7 mm thick

38

—

150 (along edges)


more than 7 mm thick

51

—

300 (along intermediate supports)
Notes to Table 9.26.3.1.:
9.27.7.1. Materials (1) Shingles and shakes shall conform to, (a) CSA O118.1, “Western Cedars Shakes and Shingles”, or (b) CSA O118.2-M, “Eastern White Cedar Shingles”. (2) Western cedar shakes shall be not less than No. 1 grade or Handsplit grade, and western cedar shingles not less than No. 2 grade, except that No. 3 grade may be used for undercoursing. (3) Eastern white cedar shakes shall be at least B (clear) grade, except that C grade may be used for undercoursing.
Notes to Table 9.26.3.1.:
9.27.7.4. Offsetting of Joints (1) In single-course application, joints in succeeding courses shall be offset at least 40 mm so that joints in any 2 of 3 consecutive courses are staggered. (2) In double-course application, joints in the outer course shall be offset from joints in the under-course by not less than 40 mm, and joints in succeeding courses shall be offset not less than 40 mm.
Notes to Table 9.26.3.1.:
9.27.7.5. Fastening to Lath (1) When lath is used with double-course application (see Sentence 9.27.5.1.(5)), it shall be spaced according to the exposure and securely fastened to the framing. (2) The butts of the under-course of the application referred to in Sentence (1) shall rest on the top edge of the lath. (3) The outer course of the application referred to in Sentence (1) shall be fastened to the lath with nails of sufficient length to penetrate through the lath. (4) The butts of the shingles or shakes shall be so located that they project not less than 12 mm below the bottom edge of the lath referred to in Sentence (1). (5) If wood lath is not used, the butts of the under-course shingles or shakes of the application referred to in Sentence (1) shall be located 12 mm above the butts of the outer course.
Notes to Table 9.26.3.1.:
9.27.7.6. Exposure and Thickness (1) The exposure and butt thickness of shingles and shakes shall conform to Table 9.27.7.6. Table 9.27.7.6.   Exposure and Thickness of Wood Shingles and Shakes Forming Part of Sentence 9.27.7.6.(1)  Column 1

Column 2

Column 3

Column 4


Shake or Shingle Length, mm 

Maximum Exposure, mm

Minimum Butt Thickness, mm


Single Coursing

Double Coursing


400

190

305

10


450

216

356

11


600

292

406

13 9.27.8. Asbestos-Cement Shingles and Sheets
Notes to Table 9.26.3.1.:
9.27.8.1. Material Standards (1) Asbestos-cement shingles and sheets shall conform to, (a) CAN/CGSB-34.4-M, “Siding, Asbestos-Cement, Shingles and Clapboards”, (b) CAN/CGSB-34.5-M, “Sheets, Asbestos-Cement, Corrugated”, (c) CAN/CGSB-34.14-M, “Sheets, Asbestos-Cement, Decorative”, (d) CAN/CGSB-34.16, “Sheets, Asbestos-Cement, Flat, Fully Compressed”, (e) CAN/CGSB-34.17-M, “Sheets, Asbestos-Cement, Flat, Semicompressed”, or (f) CAN/CGSB-34.21-M, “Panels, Sandwich Asbestos-Cement with Insulating Cores”.
Notes to Table 9.26.3.1.:
9.27.8.2. Weight and Thickness (1) Asbestos-cement shingles shall weigh not less than 8.06 kg/m². (2) Asbestos-cement sheet shall be not less than, (a) 4.75 mm thick where applied to studs spaced not more than 400 mm o.c., and, (b) 6 mm thick where applied to studs spaced not more than 600 mm o.c. (3) Where applied over sheathing, the thickness of asbestos-cement sheet shall be not less than 3.15 mm.
Notes to Table 9.26.3.1.:
9.27.8.3. Fastening of Shingles (1) Asbestos-cement shingles shall be fastened with nails located not less than 25 mm above the exposure line.
Notes to Table 9.26.3.1.:
9.27.8.4. Joints of Shingles (1) Asbestos-cement shingles shall be installed so that vertical joints in succeeding courses are staggered. (2) Asphalt-coated backer strips shall be installed behind each vertical joint. (3) Shingles referred to in Sentence (1) shall have not less than a 25 mm head lap.
Notes to Table 9.26.3.1.:
9.27.8.5. Joints in Panels (1) Vertical joints of asbestos-cement panels shall be protected with batten strips, caulking or other suitable method. (2) Horizontal joints of asbestos-cement panels shall be lapped, flashed, caulked or otherwise suitably protected. 9.27.9. Plywood
Notes to Table 9.26.3.1.:
9.27.9.1. Material Standards   (1) Plywood cladding shall be exterior type conforming to, (a) CSA O115-M, “Hardwood and Decorative Plywood”, (b) CSA O121-M, “Douglas Fir Plywood”, (c) CSA O151, “Canadian Softwood Plywood”, or (d) CSA O153-M, “Poplar Plywood”.
Notes to Table 9.26.3.1.:
9.27.9.2. Thickness (1) Plywood cladding shall be not less than 6 mm thick when applied directly to sheathing. (2) When applied directly to framing or over furring strips, plywood cladding thickness shall conform to Table 9.27.9.2. Table 9.27.9.2.   Minimum Plywood Cladding Thickness Forming Part of Sentence 9.27.9.2.(2)  Column 1

Column 2

Column 3


Spacing of Supports, mm

Minimum Thickness, mm, where Face Grain Parallel to Supports

Minimum Thickness, mm, where Face Grain at Right Angles to Supports 


400

8

6


600

11

8 (3) The thickness of grooved or textured plywood shall be measured at the point of least thickness.
Notes to Table 9.26.3.1.:
9.27.9.3. Edge Treatment (1) The edges of plywood cladding shall be treated with a suitable paint or sealer.
Notes to Table 9.26.3.1.:
9.27.9.4. Panel Cladding (1) Plywood applied in panels shall have all edges supported. (2) Not less than a 2 mm gap shall be provided between panels referred to in Sentence (1). (3) Vertical joints in cladding referred to in Sentence (1) shall be protected with batten strips or caulking when the plywood joints are not matched. (4) Horizontal joints in cladding referred to in Sentence (1) shall be lapped not less than 25 mm or shall be suitably flashed.
Notes to Table 9.26.3.1.:
9.27.9.5. Lapped Strip Siding (1) Plywood applied in horizontal lapped strips shall have not less than a 2 mm gap provided at the butted ends, which shall be caulked. (2) The horizontal joints of siding described in Sentence (1) shall be lapped not less than 25 mm. (3) Wedges shall be inserted under all vertical butt joints and at all corners when horizontal lapped plywood is applied without sheathing. 9.27.10. Hardboard
Notes to Table 9.26.3.1.:
9.27.10.1. Material Standards (1) Factory-finished hardboard cladding shall conform to CAN/CGSB-11.5M, “Hardboard, Precoated, Factory-Finished, for Exterior Cladding”. (2) Hardboard cladding that is not factory finished shall conform to Types 1, 2 or 5 in CAN/CGSB-11.3-M, “Hardboard”.
Notes to Table 9.26.3.1.:
9.27.10.2. Thickness (1) Type 1 or 2 hardboard cladding shall be not less than, (a) 6.0 mm thick when applied over sheathing that provides continuous support, and (b) 7.5 mm thick when applied to furring or framing members not more than 400 mm o.c. (2) Type 5 hardboard cladding shall be not less than 9.0 mm thick when applied over sheathing that provides continuous support or over furring or framing members spaced not more than 400 mm o.c. (3) Where hardboard cladding is grooved, the grooves shall not extend more than 1.5 mm into the minimum required thickness.
Notes to Table 9.26.3.1.:
9.27.10.3. Panel Cladding (1) Hardboard cladding applied in panels shall have all edges supported with not less than a 5 mm gap provided between sheets. (2) Vertical joints in cladding described in Sentence (1) shall be protected with batten strips or caulking when the joints are not matched. (3) Horizontal joints in cladding described in Sentence (1) shall be lapped not less than 25 mm or shall be suitably flashed.
Notes to Table 9.26.3.1.:
9.27.10.4. Lapped Strip Siding (1) Hardboard applied in horizontal lapped strips shall have not less than a 5 mm gap provided at the butted ends, which shall be caulked or otherwise protected with suitable mouldings. (2) The horizontal joints of siding described in Sentence (1) shall overlap not less than 1 mm per 16 mm width of siding board but not less than 9.5 mm for matched joint siding or 25 mm for lapped siding.
Notes to Table 9.26.3.1.:
9.27.10.5. Clearance (1) Not less than 3 mm clearance shall be provided between hardboard siding and door or window frames. 9.27.11. OSB and Waferboard
Notes to Table 9.26.3.1.:
9.27.11.1. Material Standard (1) OSB and waferboard cladding shall conform to CSA O437.0, “OSB and Waferboard”.
Notes to Table 9.26.3.1.:
9.27.11.2. Thickness (1) OSB conforming to O-2 grade shall be not less than 6.0 mm thick where applied directly to sheathing. (2) OSB conforming to O-2 grade applied directly to framing or over furring strips, shall conform to the thickness shown for plywood in Table 9.27.9.2. (3) OSB conforming to O-1 grade and waferboard conforming to R-1 grade shall be not less than 7.9 mm thick where applied directly to sheathing. (4) Where applied directly to framing or over furring strips, OSB conforming to O-1 grade and waferboard conforming to R-1 grade shall be not less than, (a) 9.5 mm thick on supports spaced not more than 400 mm o.c., and (b) 12.7 mm thick on supports spaced not more than 600 mm o.c.
Notes to Table 9.26.3.1.:
9.27.11.3. Panel Cladding (1) OSB and waferboard applied in panels shall have all edges supported and treated with a primer or sealer. (2) Not less than a 3 mm gap shall be provided between sheets in cladding described in Sentence (1). (3) Vertical joints in cladding described in Sentence (1) shall be protected with batten strips or caulking when the OSB and waferboard joints are not matched. (4) Horizontal joints in cladding described in Sentence (1) shall be lapped not less than 25 mm or shall be suitably flashed.
Notes to Table 9.26.3.1.:
9.27.11.4. Clearance (1) At least a 3 mm clearance shall be provided between OSB and waferboard cladding and door or window frames. 9.27.12. Metal
Notes to Table 9.26.3.1.:
9.27.12.1. Material Standards (1) Horizontal and vertical strip steel siding, including flashing and trim accessories, shall conform to CAN/CGSB-93.4, “Galvanized Steel and Aluminum-Zinc Alloy Coated Steel Siding, Soffits and Fascia, Prefinished, Residential”. (2) Steel sheet cladding shall have a minimum thickness of 0.3 mm and conform to CAN/CGSB-93.3-M, “Prefinished Galvanized and Aluminum-Zinc Alloy Steel Sheet for Residential Use”. (3) Horizontal and vertical strip aluminum siding, including flashing and trim accessories, shall conform to CAN/CGSB-93.2-M, “Prefinished Aluminum Siding, Soffits and Fascia, for Residential Use”. (4) Aluminum sheet cladding shall conform to CAN/CGSB-93.1-M, “Sheet, Aluminum Alloy, Prefinished, Residential” and shall have a thickness of not less than 0.58 mm, except that siding supported by backing or sheathing shall have a thickness of not less than 0.46 mm. 9.27.13. Vinyl Siding
Notes to Table 9.26.3.1.:
9.27.13.1. Material Standard (1) Vinyl siding, including flashing and trim accessories, shall conform to CAN/CGSB-41.24, “Rigid Vinyl Siding, Soffits and Fascia”.
Notes to Table 9.26.3.1.:
9.27.13.2. Attachment (1) The attachment of vinyl siding shall conform to the requirements in Subsection 9.27.5. for metal siding. Section 9.28. Stucco 9.28.1. General
Notes to Table 9.26.3.1.:
9.28.1.1. Sheathing Beneath Stucco (1) Sheathing shall be provided beneath stucco applied over wood-frame walls except as permitted in Article 9.28.4.2. (2) Where applied beneath stucco, sheathing shall conform to Subsection 9.23.16.
Notes to Table 9.26.3.1.:
9.28.1.5. Flashing and Caulking (1) Flashing and caulking used with stucco shall conform to Subsections 9.27.3. and 9.27.4., except that if aluminum flashing is used, it shall be separated from the stucco by an impervious membrane or coating. 9.28.2. Stucco Materials
Notes to Table 9.26.3.1.:
9.28.2.1. Portland Cement (1) Portland cement shall conform to CAN/CSA-A3001, “Cementitious Materials for Use in Concrete”.
Notes to Table 9.26.3.1.:
9.28.2.2. Aggregate (1) Aggregate shall be clean, well-graded natural sand or sand manufactured from crushed stone, gravel or air-cooled blast furnace slag and shall contain no significant amounts of deleterious material. (2) Aggregate grading shall conform to Table 9.28.2.2. Table 9.28.2.2.   Aggregate Grading for Stucco Forming Part of Sentence 9.28.2.2.(2)  Column 1

Column 2

Column 3


Sieve Sizes, mm

% Aggregate Passing Sieve


Maximum

Minimum


4

—

100


2

—

90


1

90

60


0.5

60

45


0.25

30

10


0.125

5

—
Notes to Table 9.26.3.1.:
9.28.4.3. Stucco Lath Specifications (1) Stucco lath shall conform to Table 9.28.4.3. Table 9.28.4.3.   Stucco Lath Forming Part of Sentence 9.28.4.3.(1)  Column 1

Column 2

Column 3

Column 4

Column 5


Location

Type of Lath

Minimum Diam. of Wire, mm

Maximum Mesh Opening

Minimum Mass, kg/m2


Vertical surfaces

Welded or woven wire

1.15

25 mm

—


1.30

38 mm

—


1.50

51 mm

—


Stucco mesh reinforcing (expanded metal)

—

25.8 cm2

0.98


Horizontal surfaces

9.5 mm rib lath

—

—

1.84


Cedar lath

—

—

—
Notes to Table 9.26.3.1.:
9.28.4.6. Fastening (1) Stucco lath shall be fastened in conformance with Subsection 9.27.5. (2) Fasteners on vertical surfaces shall be spaced not more than, (a) 150 mm o.c. vertically and 400 mm o.c. horizontally, or (b) 100 mm o.c. vertically and 600 mm o.c. horizontally. (3) Nailing patterns other than those required in Sentence (2) are permitted to be used provided there are not fewer than 20 fasteners per square metre of wall surface. (4) Fasteners on horizontal surfaces shall be spaced not more than, (a) 150 mm o.c. along the framing members when members are spaced not more than 400 mm o.c., and (b) 100 mm o.c. along members when members are spaced not more than 600 mm o.c. 9.28.5. Stucco Mixes
Notes to Table 9.26.3.1.:
9.28.5.1. Mixes (1) Stucco mixes shall conform to Table 9.28.5.1. Table 9.28.5.1.   Stucco Mixes Forming Part of Sentence 9.28.5.1.(1)  Column 1

Column 2

Column 3

Column 4


Materials, volume


Portland Cement

Masonry Cement

Lime

Aggregate


1

—

0.25 to 1

3.25 to 4 parts per part of cementitious material


1

1

—
Notes to Table 9.26.3.1.:
9.28.6.2. Number of Coats and Total Thickness (1) Stucco shall be applied with at least 2 base coats and one finish coat, providing a total thickness of not less than 15 mm, measured from the face of the lath or face of the masonry where no lath is used.
Notes to Table 9.26.3.1.:
9.28.6.4. Second Coat (1) The second coat shall be not less than 6 mm thick. (2) The surface of the second shall be lightly roughened to provide a key with the finish coat if the finish coat is other than stone dash.
Notes to Table 9.26.3.1.:
9.29.3.1. Size and Spacing of Furring (1) Wood furring for the attachment of wall and ceiling finishes shall conform to Table 9.29.3.1. Table 9.29.3.1.   Size and Spacing of Furring Forming Part of Sentence 9.29.3.1.(1)  Column 1

Column 2

Column 3

Column 4


Maximum Spacing of Furring, mm

Minimum Size of Furring, mm


Maximum Spacing of Furring Supports


Continuous Supports

400 mm (o.c.)

600 mm (o.c.)


300

19 × 38

19 × 38

19 × 64


400

19 × 38

19 × 38

19 × 64


600

19 × 38

19 × 64

19 × 89
Notes to Table 9.26.3.1.:
9.29.4.1. Application (1) Application of plaster wall and ceiling finishes including installation of metal or gypsum lath, shall conform to CSA A82.30-M, “Interior Furring, Lathing and Gypsum Plastering”. 9.29.5. Gypsum Board Finish (Taped Joints)
Notes to Table 9.26.3.1.:
9.29.5.2. Materials (1) Gypsum products shall conform to, (a) CAN/CSA-A82.27-M, “Gypsum Board”, (b) Reserved (c) Reserved (d) Reserved (e) Reserved (f) Reserved (g) Reserved (h) Reserved (i) ASTM C1178 / C1178M, “Coated Glass Mat Water-Resistant Gypsum Backing Panel”, or (j) Reserved (k) ASTM C1396 / C1396M, “Gypsum Board”.
Notes to Table 9.26.3.1.:
9.29.5.3. Maximum Spacing of Supports (1) Maximum spacing of supports for gypsum board applied as a single layer shall conform to Table 9.29.5.3. Table 9.29.5.3.   Spacing of Supports for Gypsum Board Forming Part of Sentence 9.29.5.3.(1)  Column 1

Column 2

Column 3

Column 4

Column 5


Thickness, mm

Orientation of Board to Framing

Maximum Spacing of Supports, mm o.c.


Walls

Ceilings


Painted Finish

Water-Based Texture Finish


Gypsum board conforming to Sentence 9.29.5.2.(1) (except Sections 9 and 12 of ASTM C1396 / C1396M)


9.5

Parallel

—

—

—


perpendicular

400

400

—


12.7

Parallel

600

400

—


perpendicular

600

600

400


15.9

Parallel

600

400

—


perpendicular

600

600

600


Gypsum board conforming to Clause 9.29.5.2.(1)(k) (only Section 12 of ASTM C1396 / C1396M)


12.7

Parallel

600

400

—


perpendicular

600

600

600
Notes to Table 9.26.3.1.:
9.29.5.5. Length of Fasteners (1) The length of fasteners for gypsum board shall conform to Table 9.29.5.5., except that lesser depths of penetration are permitted for assemblies required to have a fire-resistance rating provided it can be shown, on the basis of fire tests, that such depths are adequate for the required rating. Table 9.29.5.5.   Fastener Penetration into Wood Supports Forming Part of Sentence 9.29.5.5.(1)  Column 1

Column 2

Column 3

Column 4

Column 5


Required Fire-Resistance Rating of Assembly

Minimum Penetration, mm


Walls

Ceilings


Nails

Screws

Nails

Screws


Not required

20

15

20

15


45 min

20

20

30

30


1 h

20

20

45

45


1.5 h

20

20

60

60
Notes to Table 9.26.3.1.:
9.29.5.6. Nails (1) Nails for fastening gypsum board to wood supports shall conform to CSA B111, “Wire Nails, Spikes and Staples”.
Notes to Table 9.26.3.1.:
9.29.5.9. Spacing of Screws (1) For single-layer application on a ceiling, screws shall be spaced not more than 300 mm o.c. on ceiling supports. (2) Where the ceiling sheets are supported by the wall sheets around the perimeter of the ceiling, this support may be considered as equivalent to screwing at this location. (3) Except as required by Sentence (4), for single-layer application on walls, screws shall be spaced, (a) not more than 300 mm o.c. on vertical wall supports where the supports are more than 400 mm o.c., or (b) not more than 400 mm o.c. on vertical wall supports where the supports are not more than 400 mm o.c. (4) Except as required by Sentence (5), for single-layer application on walls, where gypsum board is required to provide bracing, lateral support or fire protection, screws shall be spaced not more than 300 mm o.c. on, (a) vertical wall supports, and (b) top and bottom plates. (5) Where a fire-resistance rating is determined based on Table 1 of Supplementary Standard SB-3, Sentence (4) need not apply for the purpose of fire protection. (6) Screws shall be located not less than 10 mm from the side or edge of the board. (7) Screws shall be driven so that the heads do not puncture the paper.
Notes to Table 9.26.3.1.:
9.29.6.1. Thickness (1) Except as provided in Sentences (2) and (3), the minimum thickness of plywood interior finish shall conform to Table 9.29.6.1. Table 9.29.6.1.   Thickness of Plywood Interior Finish Forming Part of Articles 9.29.6.1., 9.29.6.2. and 9.29.9.2.  Column 1

Column 2

Column 3


Maximum Spacing of Supports, mm o.c.

Minimum Thickness, mm(1), on Supports with no Horizontal Blocking

Minimum Thickness, mm(1), on Supports with Blocking at Vertical Intervals not Exceeding 1.2 m


400

4.7

4.0


600

8.0

4.7
Notes to Table 9.29.6.1.
9.29.7.2. Thickness (1) Hardboard shall be not less than, (a) 3 mm thick where applied over continuous back-up, (b) 6 mm thick where applied to supports spaced not more than 400 mm o.c., and (c) 9 mm thick where applied to supports spaced not more than 600 mm o.c.
Notes to Table 9.29.6.1.
9.29.8.1. Material Standard (1) Insulating fibreboard shall conform to CAN/ULC-S706, “Wood Fibre Thermal Insulation for Buildings”.
Notes to Table 9.29.6.1.
9.29.8.2. Thickness (1) Insulating fibreboard sheets shall be not less than 11.1 mm thick on supports not more than 400 mm o.c. (2) Insulating fibreboard tile shall be not less than 12.7 mm thick on supports spaced not more than 400 mm o.c.
Notes to Table 9.29.6.1.
9.29.9.1. Material Standard (1) Particleboard finish shall conform to ANSI A208.1, “Particleboard, Mat-Formed Wood”. (2) OSB or waferboard finish shall conform to, (a) CAN/CSA-O.325, “Construction Sheathing”, or (b) CSA O437.0, “OSB and Waferboard”.
Notes to Table 9.29.6.1.
9.29.9.2. Minimum Thickness (1) Except as provided in Sentences (2) and (3), the minimum thickness of O-2 grade OSB used as an interior finish shall conform to that shown for plywood in Table 9.29.6.1. (2) Thickness listed in Table 9.29.6.1. shall permit a manufacturing tolerance of – 0.4 mm. (3) No minimum thickness is required where O-2 grade OSB is applied over continuous backing. (4) OSB conforming to O-1 grade, waferboard conforming to R-1 grade and particleboard shall be, (a) not less than 6.35 mm thick on supports not more than 400 mm o.c., (b) not less than 9.5 mm thick on supports not more than 600 mm o.c., and (c) not less than 6.35 mm thick on supports not more than 600 mm o.c. in walls where blocking is provided at midwall height. (5) OSB conforming to CAN/CSA-O325.0, “Construction Sheathing”, shall meet the minimum panel mark of, (a) W16, on supports not more than 400 mm o.c., (b) W24, on supports not more than 600 mm o.c., and (c) W16, on supports not more than 600 mm o.c. where blocking is provided at midwall height.
Notes to Table 9.29.6.1.
9.29.10.2. Mortar Base (1) When ceramic tile is applied to a mortar base the cementitious material shall consist of 1 part Portland cement to not more than one-quarter part lime by volume. (2) The cementitious material described in Sentence (1) shall be mixed with no fewer than 3 nor more than 5 parts of aggregate per part of cementitious material by volume. (3) Mortar shall be applied over metal lath or masonry. (4) Ceramic tile applied to a mortar base shall be thoroughly soaked and pressed into place forcing the mortar into the joints while the tile is wet.
Notes to Table 9.29.6.1.
9.30.2.2. Materials and Thickness (1) Panel-type underlay shall be not less than 6 mm thick and shall conform to, (a) ANSI A208.1, “Particleboard, Mat-Formed Wood”, (b) CAN/CGSB-11.3-M, “Hardboard”, (c) CSA O115-M, “Hardwood and Decorative Plywood”, (d) CSA O121-M, “Douglas Fir Plywood”, (e) CSA O151, “Canadian Softwood Plywood”, (f) CSA O153-M, “Poplar Plywood”, or (g) CSA O437.0, “OSB and Waferboard”.
Notes to Table 9.29.6.1.
9.30.3.1. Thickness (1) The thickness of wood strip flooring shall conform to Table 9.30.3.1. Table 9.30.3.1.   Thickness of Wood Strip Flooring Forming Part of Sentence 9.30.3.1.(1)  Column 1

Column 2

Column 3

Column 4


Type of Flooring

Maximum Joist Spacing, mm

Minimum Thickness of Flooring, mm


With Subfloor

No Subfloor


Matched hardwood (interior use only)

400

7.9

19.0


600

7.9

33.3


Matched softwood (interior or exterior use)

400

19.0

19.0


600

19.0

31.7


Square edge softwood (exterior use only)

400

—

25.4


600

—

38.1
Notes to Table 9.29.6.1.
9.30.3.2. Strip Direction and End Joints (1) Wood strip flooring shall not be laid parallel to lumber subflooring unless a separate underlay is provided. (2) If wood strip flooring is applied without a subfloor, it shall be laid at right angles to the joists so that the end joints are staggered and occur over supports or are end matched. (3) If the flooring is end matched, it shall be laid so that no 2 adjoining strips break joints in the same space between supports and each strip bears on no fewer than 2 supports.
Notes to Table 9.29.6.1.
9.30.3.3. Nailing (1) When nails are used, wood strip flooring shall be toe nailed or face nailed with at least 1 nail per strip at the spacings shown in Table 9.30.3.3., except that face nailed strips of more than 25 mm in width shall have at least 2 nails per strip. (2) Face nails shall be countersunk. Table 9.30.3.3.   Nailing of Wood Strip Flooring Forming Part of Sentence 9.30.3.3.(1)  Column 1

Column 2

Column 3


Finish Floor Thickness, Mm

Minimum Length of Flooring Nails, mm

Maximum Spacing of Flooring Nails, mm


7.9

38(1)

200


11.1

51

300


19.0

57

400


25.4

63

400


31.7

70

600


38.1

83

600
Notes to Table 9.30.3.3.:
9.30.5.1. Materials (1) Resilient flooring used on concrete slabs supported on ground shall consist of asphalt, rubber, vinyl-asbestos, unbacked vinyl or vinyl with an inorganic type backing. (2) Flooring described in Sentence (1) shall be attached to the base with a suitable waterproof and alkali-resistant adhesive. 9.30.6. Ceramic Tile
Notes to Table 9.30.3.3.:
9.30.6.1. Application (1) Ceramic tile shall be set in a mortar bed or applied to a sound smooth base with a suitable adhesive. (2) Panel-type subfloor to which ceramic tile is to be applied with adhesive shall have its edges supported according to Article 9.23.14.3.
Notes to Table 9.30.3.3.:
9.30.6.2. Ceramic Tile Set in Mortar Bed (1) When ceramic tile is set in mortar bed, the bed shall be not less than 32 mm thick. A 50 mm by 50 mm galvanized wire mesh shall be placed in the mortar bed, and asphalt sheathing paper, felt or polyethylene film shall be applied under the mortar bed when the mortar is applied over wood subfloors. (2) The mortar bed described in Sentence (1) shall consist of by volume, (a) 1 part Portland cement, (b) 4 parts sand, and (c) 1 part water. (3) The tile joints for the ceramic tile in Sentence (1) shall be grouted with cement grout which shall be compressed into joints between the tiles and then wiped smooth.
Notes to Table 9.30.3.3.:
9.30.6.3. Reinforcement for Panel-Type Wood Sheathing (1) Except as permitted in Article 9.30.6.4., when ceramic floor tiles are set on panel-type wood sheathing, one of the following assemblies for reinforcing the floor assembly shall be used: (a) 20 mm thick plywood or waferboard with all edges supported by at least 38 mm by 38 mm blocking with floor joists spaced not more than 400 mm o.c., with 6 mm underlay, (b) sheathing with a thickness that conforms to Table 9.23.14.5.A. or a rating that complies to Table 9.23.14.5.B. and has an underlay consisting of 15.9 mm plywood or waferboard with offsetting joints, with a 4 mm gap between the sheets, or (c) subfloor sheathing reinforced with close spaced 38 mm by 38 mm blocking at spacings at least half that of the floor joist spacing.
Notes to Table 9.30.3.3.:
9.30.6.4. Ceramic Tile Applied to Mortar Bed with Adhesive (1) When ceramic tile is applied to a mortar bed with adhesive, the bed shall be not less than 12.5 mm thick. (2) The mortar bed described in Sentence (1) shall consist of by volume, (a) 1 part Portland cement, (b) 3 parts sand, and (c) 1 part water. (3) At least one layer of galvanized diamond mesh wire lath shall be embedded in the mortar bed. (4) Joints in the wire lath required by Sentence (3) shall be overlapped not less than 12 mm. (5) The wire lath required in Sentence (3) shall be fastened to the subfloor with, (a) lath nails not less than 38 mm length spaced not more than 150 mm o.c., or (b) staples not less than 38 mm in length spaced not more than 150 mm o.c. (6) Asphalt sheathing paper, felt or polyethylene film shall be applied between the mortar bed and the wood subfloor. (7) Floor joists supporting the mortar bed described in Sentence (1) shall, (a) be spaced not more than 400 mm o.c., and (b) have no fewer than two rows of 38 mm × 38 mm cross bridging. (8) The tile joints for the ceramic tile in Sentence (1) shall be grouted with cement grout which shall be compressed into joints between the tiles and then wiped smooth. Section 9.31. Plumbing Facilities 9.31.1. Scope
Notes to Table 9.30.3.3.:
9.31.1.1. Application (1) Except as provided in Sentence (2), this Section applies to plumbing facilities and plumbing systems serving dwelling units. (2) Plumbing facilities, grab bars, floor drains and floor and wall finishes around urinals shall conform to Subsection 3.7.4. and Article 7.1.5.2. in, (a) a recreational camp, (b) a camp for housing of workers, or (c) all other buildings not described in Sentence (1). (3) Medical gas piping systems shall conform to Subsection 3.7.5. 9.31.2. General
Notes to Table 9.30.3.3.:
9.31.2.1. General (1) The construction of plumbing systems shall conform to Part 7.
Notes to Table 9.30.3.3.:
9.31.3.1. Reserved
Notes to Table 9.30.3.3.:
9.31.4.1. Required Fixtures (1) In a dwelling unit with a water distribution system, a kitchen sink, lavatory, bathtub or shower stall and water closet shall be provided.
Notes to Table 9.30.3.3.:
9.31.4.3. Hot Water Supply (1) In a dwelling unit with a water distribution system, a hot water supply shall be provided. (2) A water distribution system supplying hot water to plumbing fixtures shall conform to the requirements in Subsection 7.6.5.
Notes to Table 9.30.3.3.:
9.31.4.4. Floor Drains (1) A floor drain shall be installed in a basement forming part of a dwelling unit.
Notes to Table 9.30.3.3.:
9.31.5. Reserved 9.31.6. Service Water Heating Facilities
Notes to Table 9.30.3.3.:
9.31.6.1. Hot Water Temperature (1) Where a hot water supply is required by Article 9.31.4.3., equipment shall be installed to provide to every dwelling unit an adequate supply of service hot water with a temperature range from 45°C to 60°C.
Notes to Table 9.30.3.3.:
9.31.6.2. Equipment and Installation (1) Every service water heater and its installation shall conform to Part 7. (2) Reserved (3) Where the building is in a location where the spectral response acceleration, Sa(0.2), is greater than 0.55, service water heaters shall be secured to the structure to resist overturning and displacement.
Notes to Table 9.30.3.3.:
9.31.6.4. Fuel-Burning Heaters (1) Fuel-burning service water heaters shall be connected to a chimney flue conforming to Section 9.21.
Notes to Table 9.30.3.3.:
9.32.1.1. Application (1) This Section applies to the ventilation of rooms and spaces in residential occupancies by natural ventilation and to self-contained mechanical ventilation systems serving only one dwelling unit. (2) Mechanical ventilation systems, other than self-contained systems serving single dwelling units, shall conform to Part 6. (3) Ventilation of rooms and spaces in other than residential occupancies shall conform to Part 6. (4) A storage garage for more than 5 cars shall be ventilated in accordance with Part 6. (5) A clothes dryer exhaust duct system shall conform to Part 6.
Notes to Table 9.30.3.3.:
9.32.1.2. Mechanical Ventilation for Dwelling Units (1) Every dwelling unit that is supplied with electrical power shall be provided with a mechanical ventilation system in accordance with Subsection 9.32.3.
Notes to Table 9.30.3.3.:
9.32.1.3. Ventilation of Rooms and Spaces (1) Except as permitted in Sentence (2), rooms or spaces in a dwelling unit shall be ventilated by natural means in accordance with Subsection 9.32.2. (2) The natural ventilation of rooms or spaces required in Sentence (1) may be provided by mechanical means. (3) Where a room or space is not provided with natural ventilation as described in Sentence (1), mechanical ventilation shall be provided to exhaust inside air from or to introduce outside air to that room or space at the rate of one-half air change per hour if the room or space is mechanically cooled in summer, and one air change per hour if it is not. 9.32.2. Natural Ventilation
Notes to Table 9.30.3.3.:
9.32.2.1. Natural Ventilation Area (1) The unobstructed openable ventilation area to the outdoors for rooms and spaces in residential buildings ventilated by natural means shall conform to Table 9.32.2.1. Table 9.32.2.1.   Natural Ventilation Forming Part of Sentence 9.32.2.1.(1)  Column 1

Column 2

Column 3


Location

Minimum Unobstructed Area


Within a dwelling unit

Bathrooms or water closet rooms

0.09 m²


Unfinished basement space

0.2 per cent of the floor area


Dining rooms, living rooms, bedrooms, kitchens, combined rooms, dens, recreation rooms and all other finished rooms

0.28 m² per room or combination of rooms


Other than within a dwelling unit

Bathrooms or water closet rooms

0.09 m² per water closet


Sleeping areas

0.14 m² per occupant


Laundry rooms, kitchens, recreation rooms

4 per cent of the floor area


Corridors, storage rooms and other similar public rooms or spaces

2 per cent of the floor area


Unfinished basement space not used on a shared basis

0.2 per cent of the floor area (2) Where a vestibule opens directly off a living or dining room within a dwelling unit, ventilation to the outdoors for such rooms may be through the vestibule.
Notes to Table 9.30.3.3.:
9.32.3.1. General (1) For the purposes of this Subsection a non-solid fuel-fired appliance shall be classified as, (a) direct vented whereby the combustion air is supplied directly from the outdoors to the combustion chamber via a sealed passageway, and the products of combustion are exhausted directly outdoors through an independent sealed vent, (b) mechanically vented induced draft whereby combustion air is supplied from within the building envelope and the products of combustion are positively conveyed to the outdoors by means of a dedicated sealed vent, or (c) natural draft whereby combustion air is supplied from within the building envelope and the products of combustion are conveyed to the outdoors through a chimney or Type B vent. (2) For the purposes of this Subsection a dwelling unit shall be categorized as, (a) Type I when, (i) all fuel-fired combustion appliances located in the dwelling unit are direct vented or except for fireplaces, are mechanically vented induced draft, and (ii) the dwelling unit does not contain a solid fuel-fired combustion appliance, (b) Type II when a solid fuel-fired combustion appliance is installed in a Type I dwelling unit, (c) Type III when a mechanically vented induced draft non-solid fuel-fired fireplace or a natural draft appliance is present, or (d) Type IV when electric space heating is present.
Notes to Table 9.30.3.3.:
9.32.3.3. Total Ventilation Capacity (1) The minimum total ventilation capacity of the ventilation system required in Clause 9.32.3.2.(1)(b) shall be the greater of, (a) the sum of the individual room capacities given in Table 9.32.3.3., or (b) 0.3 air changes per hour based on the conditioned volume of the dwelling unit. Table 9.32.3.3.   Ventilation Capacity Forming Part of Sentence 9.32.3.3.(1)  Column 1

Column 2


Room

Capacity, L/s


Master bedroom(1)

10


Other bedrooms

5


Living room(2)

5


Dining room(2)

5


Kitchen

5


Family room(2)

5


Recreation room

5


Basement(3)

10


Other habitable rooms(4)

5


Bathroom or water closet room

5


Laundry room

5


Utility room

5
Notes to Table 9.32.3.3.:
9.32.3.5. Supplemental Exhaust (1) Additional supplemental exhaust capacity shall be installed as necessary so that the total capacity of all kitchen, bathroom, water closet room and other supplemental exhaust air intakes is not less than the total ventilation capacity, as required in Article 9.32.3.3., minus the principal exhaust fan capacity, as required in Article 9.32.3.4. (2) An exhaust air intake shall be installed in each kitchen, bathroom and water closet room. (3) Where the intake for a supplemental exhaust fan other than a range hood or range-top fan is installed in a kitchen, it shall be installed in the ceiling or on the wall within 300 mm of the ceiling. (4) Exhaust ducts serving the required kitchen, bathroom, water closet room and other supplemental exhaust air intakes shall be sized according to Part 6 except that they may be sized according to Table 9.32.3.5. where (a) the total duct length does not exceed 9 m, and (b) the number of elbows does not exceed 4, but, in any case, they shall not be smaller than recommended by the manufacturers of the fans. Table 9.32.3.5.   Kitchen, Bathroom and Water Closet Room Exhaust Duct Size Forming Part of Sentence 9.32.3.5.(4)  Column 1

Column 2

Column 3


Fan Capacity, L/s

Minimum Exhaust Duct Diameter(1)


Ducts Connected to Inlet and Outlet of Exhaust Fan, mm

Ducts Connected to One Side Only of Exhaust Fan, mm


25

125

125


50

150

150
Notes to Table 9.32.3.5.:
9.32.3.6. Ventilation Systems Coupled with Forced Air Heating Systems (1) This Article applies to a mechanical ventilation system in a dwelling unit that contains a forced air heating system and the forced air heating system is used for delivery of ventilation air. (2) In a Type I dwelling unit, a ventilation supply inlet is not required. (3) In a Type II dwelling unit, the mechanical ventilation system shall include a heat recovery ventilator, coupled to the forced air heating system, installed in accordance with Article 9.32.3.11. (4) The forced air heating system circulation fan shall be controlled by a manual switch located adjacent to the ventilation fan switch required in Sentence 9.32.3.4.(4). (5) The switch required in Sentence (4) shall be identified by the words CIRCULATION FAN.
Notes to Table 9.32.3.5.:
9.32.3.7. Ventilation Systems Not Coupled with Forced Air Heating Systems (1) This Article applies to a mechanical ventilation system in a dwelling unit that, (a) does not contains a forced air heating system, or (b) contains a forced air heating system and the forced air heating system is not used for circulation of the ventilation air. (2) The mechanical ventilation system shall introduce air to and circulate air throughout the dwelling unit in compliance with this Article. (3) The mechanical system in this Article shall include a heat recovery ventilator installed in accordance with Article 9.32.3.11. (4) Outdoor air shall be distributed by a ductwork system from the heat recovery ventilator required in Sentence (3) to each bedroom, to any storey without a bedroom and, if there is no storey without a bedroom, to the principal living area. (5) A supply duct from the outdoors to the heat recovery ventilator required and a main distribution trunk duct shall be provided and shall be sized according to Part 6, except that, the supply duct and the main distribution trunk duct may be sized according to Table 9.32.3.7.A. where, (a) the total duct length from the outdoor hood to any supply register does not exceed 21 m, and (b) the total number of fittings does not exceed 8. (6) The outside air supply duct required by Sentence (5) shall not be considered to provide combustion and/or dilution air to fuel-burning appliances. Table 9.32.3.7.A.   Minimum Outdoor Air Supply and Main Trunk Duct Sizes Forming Part of Sentence 9.32.3.7.(5)  Column 1

Column 2


Number of Bedrooms in Dwelling Unit

Minimum Outdoor Air Supply and Main Distribution Trunk Duct Diameter, mm


1

150


2

150


3

175


4

175


5

175


More than 5

System must comply with Sentence 6.2.1.1.(1) (7) Branch supply ducts leading from the main distribution trunk duct required by Sentence (5) to the rooms to which outdoor air is to be distributed shall be provided and shall be sized according to Part 6 except that the branch supply ducts may be sized according to Table 9.32.3.7.B. where, (a) the total duct length from outdoor hood to supply register does not exceed 21 m, and (b) the total number of fittings does not exceed 8. Table 9.32.3.7.B.   Minimum Branch Supply Duct Sizes Forming Part of Sentence 9.32.3.7.(7)  Column 1

Column 2

Column 3


Room, Space or Storey Served

Minimum Branch Supply Duct Diameter, mm


1 and 2 Bedroom Dwelling Units

3, 4 and 5 Bedroom Dwelling Units


Master bedroom

100

100


Other bedrooms

75

75


Storey with no bedrooms or living area

75

100 (8) In applying Sentence (7), where the dwelling unit has more than 5 bedrooms, ducting shall be sized according to Part 6. (9) All branch supply ducts that are not fitted with diffusers with adjustable balance stops shall be supplied with accessible dampers that can be adjusted and fixed in their adjusted positions and that include devices to indicate the positions of the dampers. (10) Provision shall be made for the free flow of air to all rooms by leaving gaps beneath doors, using louvred doors or installing grilles in doors.
Notes to Table 9.32.3.5.:
9.32.3.8. Protection Against Depressurization (1) When determining the need to provide protection against depressurization, consideration must be given to, (a) whether the presence of soil gas is deemed to be a problem, and (b) the presence of solid fuel-fired combustion appliances. (2) Where a solid fuel-fired combustion appliance is installed, the ventilation system shall include a heat recovery ventilator that is designed to operate so that the flow of exhaust air does not exceed the flow of intake air in any operating mode, and that complies with the requirements of Article 9.32.3.11.
Notes to Table 9.32.3.5.:
9.32.3.9. Fan Ratings (1) Except as provided in Sentence (4), capacity ratings for required fans shall be determined in accordance with, (a) CAN/CSA-C260-M, “Rating the Performance of Residential Mechanical Ventilating Equipment”, or (b) HVI 916, “Airflow Test Procedure”. (2) Sound ratings for required fans shall be determined in accordance with, (a) CAN/CSA-C260-M, “Rating the Performance of Residential Mechanical Ventilating Equipment”, or (b) HVI 915, “Procedure for Loudness Rating of Residential Fan Products”. (3) Capacity ratings for required fans shall be based on a static pressure differential of 50 Pa, 25 Pa or 7.5 Pa depending on whether the fan is installed with ductwork connected on both sides, one side or neither side, respectively. (4) Except for heat recovery ventilators, exhaust fans required to make up any part of the total ventilation capacity required by Article 9.32.3.3. shall have a sound rating not greater than that specified in Table 9.32.3.9. Table 9.32.3.9.   Fan Sound Rating Forming Part of Sentence 9.32.3.9.(4)  Column 1

Column 2

Column 3


Fan Application

Maximum Sound Rating, sones


Rated according to CAN/CSA-C260-M

Rated according to HVI 915


Principal exhaust fan

2.0

2.5


Supplemental exhaust fans installed in bathrooms and water closet rooms and their make-up air fans

2.5

3.5


Supplemental exhaust fans installed in kitchens and their make-up air fans

no rating required

no rating required (5) Required fans shall be installed according to the manufacturer's instructions. (6) Mechanical ventilation devices shall conform to CSA C22.2 No. 113-M, “Fans and Ventilators”.
Notes to Table 9.32.3.5.:
9.32.3.10. Ducts (1) Ventilation ducts shall conform to the requirements of Part 6 for supply ducts except that exhaust ducts that serve only a bathroom or water closet room may be of combustible material provided the duct is reasonably airtight and constructed of a material impervious to water. (2) Exhaust ducts shall not discharge into heated or unheated enclosed spaces. (3) Where an exhaust duct passes through or is adjacent to unheated space, the duct shall be insulated to not less than RSI 0.5. (4) Where a duct carrying outdoor air that is not tempered or not mixed with indoor air passes through heated space, it shall be insulated to not less than RSI 0.5 except that, where such a duct is exposed in the heated space for more than 3 m of length in the heated space, it shall be insulated to not less than the values listed in Table 9.32.3.10.A. Table 9.32.3.10.A.   Insulation of Ducts Carrying Outdoor Air Forming Part of Sentence 9.32.3.10.(4)  Column 1

Column 2


Outside Winter Design Temperature as per Supplementary Standard SB-1(1), °C

Minimum Thermal Resistance, RSI


–7 to –11

0.5


–12 to –17

0.9


–18 to –24

1.2


–25 to –29

1.4


–30 to –34

1.8


–35 and colder

2.1
Notes to Table 9.32.3.10.A.:
9.32.3.11. Heat Recovery Ventilators (1) Where a heat recovery ventilator is installed to provide all or part of the requirements of this Subsection, this Article shall apply. (2) Heat recovery ventilators shall be designed to provide a minimum 55% sensible heat recovery efficiency when tested to the low temperature thermal and ventilation performance test method set out in CAN/CSA-C439, “Rating the Performance of Heat/Energy-Recovery Ventilators”, at a Station 1 test temperature of -25°C at an air flow not less than 30 L/s. (3) Where a heat recovery ventilator is connected to a forced air heating system, the supply side of the ventilator shall be directly connected to the return air side of the forced air heating system. (4) Two or more heat recovery ventilators shall not be connected in parallel air flow to a common air supply duct unless specifically recommended by the manufacturer. (5) Two or more heat recovery ventilators shall not be connected in parallel air flow to a common downstream exhaust duct. (6) Heat recovery ventilators installed in unheated spaces shall be installed so as to avoid condensation of moisture on fans and motors in exhaust air, in accordance with the manufacturer's instructions. (7) All start-up procedures recommended by the manufacturer including air balancing and air-flow determination shall be followed. (8) Free flow of condensate shall be provided in accordance with the manufacturer's recommendations or, in their absence, a condensate drain of minimum ½ inch nominal pipe size pitched in the direction of flow and complete with a trap or condensate pump with sufficient capacity shall be installed. (9) The heat recovery ventilator and all condensate lines shall be installed in a space where the ambient temperature will not adversely affect the operation of the system. (10) When operating at the rate required in Article 9.32.3.4., the supply and exhaust airflow rates of the heat recovery ventilator shall be balanced so that the value of the lesser flow shall be at least 90% of the value of the greater flow, unless otherwise recommended by the manufacturer.
Notes to Table 9.32.3.10.A.:
9.32.3.12. Outdoor Intake and Exhaust Openings (1) Separate air intake and exhaust outlet openings, when located on the same wall or roof, shall be installed so as to avoid contamination of the ventilation air by the exhaust air. (2) Intake openings shall be located so as to avoid contamination of the ventilation air from other local sources such as automobile exhausts and exhaust from adjacent buildings. (3) The distance from the bottom of an air intake opening to finished ground level or to any nearer and lower permanent horizontal surface shall be not less than 450 mm or the depth of expected snow accumulation, whichever is greater. (4) The distance separating air intakes from building envelope penetrations that are potential sources of contaminants, such as gas vents or oil fill pipes, shall be not less than 900 mm. (5) Air intakes shall be clearly labelled as such for identification from locations outside the dwelling unit. (6) The distance from the bottom of an exhaust outlet to finished ground level or to any nearer and lower permanent horizontal surface shall be not less than 100 mm. (7) Where air intake and exhaust openings are in exposed locations, provision shall be made to protect them from the entry of precipitation by the use of louvres, weather cowls or other suitable protection. (8) Air intake openings shall incorporate screens or grilles to protect against the entry of animals and insects. (9) Except for exhaust outlets serving heat recovery ventilators, exhaust outlets shall incorporate backdraft dampers. (10) Except for clothes dryers, exhaust outlets shall be fitted with screens of mesh not larger than 15 mm, except where climatic conditions may require larger openings. (11) Where a screen or grille required by Sentences (8) and (10) has a screen mesh less than 6 mm, the screen or grille shall be removable for cleaning. (12) The gross area of the screens or grilles installed in intake and exhaust openings shall be three times that of the duct served. (13) Screens and grilles shall be of corrosion-resistant material. (14) The net free area of an air intake or exhaust outlet shall be equal to or greater than the cross-sectional area of the duct served.