PART 5 — ENVIRONMENTAL SEPARATIONUpdated for the 2024 Ontario Building Code

5.9.1.1.Compliance with Applicable Standards

(1) Except as provided in Sentence (2) and elsewhere in this Part, materials and components, and their installation, shall conform to the requirements of the applicable standards in Table 5.9.1.1. where those materials or components are (a) incorporated into environmental separators or assemblies exposed to the exterior, and (b) installed to fulfill the requirements of this Part. (See Note A-5.9.1.1.(1)) (2) The requirements for flame-spread ratings contained in thermal insulation standards shall be applied only as required in Part 3. Table 5.9.1.1. Standards Applicable to Environmental Separators and Assemblies Exposed to the Exterior Forming Part of Sentence 5.9.1.1.(1) Issuing Agency Document Number Title of Document ANSI A135.6 Engineered Wood Siding ASME B18.6.1 Wood Screws (Inch Series) ASTM A123 / A123M Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products ASTM A153 / A153M Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by ASTM A653 / A653M the Hot-Dip Process ASTM C4 Standard Specification for Clay Drain Tile and Perforated Clay Drain Tile ASTM C73 Standard Specification for Calcium Silicate Brick (Sand-Lime Brick) ASTM C126 Ceramic Glazed Structural Clay Facing Tile, Facing Brick, and Solid Masonry Units ASTM C212 Standard Specification for Structural Clay Facing Tile ASTM C412M Standard Specification for Concrete Drain Tile ASTM C444M Standard Specification for Perforated Concrete Pipe ASTM C553 Standard Specification for Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial Applications ASTM C612 Standard Specification for Mineral Fiber Block and Board Thermal Insulation ASTM C700 Standard Specification for Vitrified Clay Pipe, Extra Strength, Standard Strength, and Perforated ASTM C726 Standard Specification for Mineral Wool Roof Insulation Board ASTM C834(1) Standard Specification for Latex Sealants ASTM C840 Standard Specification for Application and Finishing of Gypsum Board ASTM C920(1) Standard Specification for Elastomeric Joint Sealants ASTM C991 Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings Standard Specification for Steel Self-Piercing Tapping Screws for the Application of Gypsum Panel Products or ASTM C1002 Metal Plaster Bases to Wood Studs or Steel Studs ASTM C1177 / C1177M Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing ASTM C1178 / C1178M Standard Specification for Coated Glass Mat Water-Resistant Gypsum Backing Panel ASTM C1184(1) Standard Specification for Structural Silicone Sealants ASTM C1280 Standard Specification for Application of Exterior Gypsum Panel Products for Use as Sheathing ASTM C1311(1) Standard Specification for Solvent Release Sealants Table 5.9.1.1. (Cont’d) Standards Applicable to Environmental Separators and Assemblies Exposed to the Exterior Forming Part of Sentence 5.9.1.1.(1) Issuing Agency Document Number Title of Document ASTM C1330(1) Standard Specification for Cylindrical Sealant Backing for Use with Cold Liquid-Applied Sealants ASTM C1396 / C1396M(2) Standard Specification for Gypsum Board ASTM C1658 / C1658M(3) Standard Specification for Glass Mat Gypsum Panels ASTM D1227 / D1227M Standard Specification for Emulsified Asphalt Used as a Protective Coating for Roofing ASTM D2178 / D2178M Standard Specification for Asphalt Glass Felt Used in Roofing and Waterproofing ASTM D3019 / D3019M(4) Standard Specification for Lap Cement Used with Asphalt Roll Roofing, Non-Fibered, and Fibered ASTM D4479 / D4479M Standard Specification for Asphalt Roof Coatings – Asbestos-Free ASTM D4637 / D4637M Standard Specification for EPDM Sheet Used In Single-Ply Roof Membrane ASTM D4811 / D4811M Standard Specification for Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing ASTM D6878 / D6878M Standard Specification for Thermoplastic Polyolefin Based Sheet Roofing ASTM E2190 Standard Specification for Insulating Glass Unit Performance and Evaluation BNQ BNQ 3624-115 Polyethylene (PE) Pipe and Fittings for Soil and Foundation Drainage CGSB CAN/CGSB-11.3-M Hardboard CGSB CAN/CGSB-12.1 Safety Glazing CGSB CAN/CGSB-12.2-M Flat, Clear Sheet Glass CGSB CAN/CGSB-12.3-M Flat, Clear Float Glass CGSB CAN/CGSB-12.4-M Heat Absorbing Glass CGSB CAN/CGSB-12.8 Insulating glass units CGSB CAN/CGSB-12.9-M Spandrel glass CGSB 37-GP-9Ma Primer, Asphalt, Unfilled, for Asphalt Roofing, Dampproofing and Waterproofing CGSB CAN/CGSB-37.50-M Hot-Applied, Rubberized Asphalt for Roofing and Waterproofing CGSB CAN/CGSB-37.54 Polyvinyl Chloride Roofing and Waterproofing Membrane CGSB CAN/CGSB-37.58-M Membrane, Elastomeric, Cold-Applied Liquid, for Non-Exposed Use in Roofing and Waterproofing CGSB CAN/CGSB-51.32-M Sheathing, Membrane, Breather Type CGSB CAN/CGSB-51.33-M Vapour Barrier Sheet, Excluding Polyethylene, for Use in Building Construction CGSB CAN/CGSB-51.34-M Vapour Barrier, Polyethylene Sheet for Use in Building Construction CGSB CAN/CGSB-93.1-M Sheet, Aluminum Alloy, Prefinished, Residential CGSB CAN/CGSB-93.2-M Prefinished Aluminum Siding, Soffits, and Fascia, for Residential Use CSA A23.1 Concrete materials and methods of concrete construction CSA CAN/CSA-A82 Fired masonry brick made from clay or shale CSA CAN3-A93-M Natural Airflow Ventilators for Buildings CSA CAN/CSA-A123.2 Asphalt-Coated Roofing Sheets CSA A123.3 Asphalt Saturated Organic Roofing Felt CSA CAN/CSA-A123.4 Asphalt for Constructing Built-Up Roof Coverings and Waterproofing Systems CSA A123.5 Asphalt shingles made from glass felt and surfaced with mineral granules CSA CAN/CSA-A123.16 Asphalt-coated glass-base sheets CSA A123.17 Asphalt Glass Felt Used in Roofing and Waterproofing CSA A123.23 Product specification for polymer-modified bitumen sheet, prefabricated and reinforced CSA A123.51 Asphalt shingle application on roof slopes 1:6 and steeper Table 5.9.1.1. (Cont’d) Standards Applicable to Environmental Separators and Assemblies Exposed to the Exterior Forming Part of Sentence 5.9.1.1.(1) Issuing Agency Document Number Title of Document CSA A165.1 Concrete block masonry units CSA A165.2 Concrete brick masonry units CSA A165.3 Prefaced concrete masonry units CSA CAN/CSA-A179 Mortar and Grout for Unit Masonry CSA CAN/CSA-A220 Series Concrete Roof Tiles CSA CAN/CSA-A371 Masonry Construction for Buildings CSA A3001 Cementitious Materials for Use in Concrete CSA B182.1 Plastic drain and sewer pipe and pipe fittings CSA G40.21 Structural quality steel CSA CAN/CSA-G401 Corrugated steel pipe products CSA CAN/CSA-O80 Series Wood preservation CSA O118.1 Western Red Cedar Shakes and Shingles CSA O118.2 Eastern White Cedar Shingles CSA O121 Douglas fir plywood CSA O141 Softwood Lumber CSA O151 Canadian softwood plywood CSA O153 Poplar plywood CSA O325 Construction sheathing CSA O437.0 OSB and Waferboard CSA S478 Durability in buildings HPVA ANSI/HPVA HP-1 American National Standard for Hardwood and Decorative Plywood ULC CAN/ULC-S701.1 Standard for Thermal Insulation, Polystyrene Boards ULC CAN/ULC-S702.1 Standard for Mineral Fibre Thermal Insulation for Buildings, Part 1: Material Specification ULC CAN/ULC-S703 Standard for Cellulose Fibre Insulation (CFI) for Buildings ULC CAN/ULC-S704.1 Standard for Thermal Insulation, Polyurethane and Polyisocyanurate, Boards, Faced Standard for Thermal Insulation – Spray Applied Rigid Polyurethane Foam, Medium Density – Material ULC CAN/ULC-S705.1 Specification ULC CAN/ULC-S705.2 Standard for Thermal Insulation – Spray Applied Rigid Polyurethane Foam, Medium Density – Application ULC CAN/ULC-S706.1 Standard for Wood Fibre Insulating Boards for Buildings ULC CAN/ULC-S710.1 Standard for Bead-Applied One Component Polyurethane Air Sealant Foam, Part 1: Material Specification ULC CAN/ULC-S711.1 Standard for Bead-Applied Two Component Polyurethane Air Sealant Foam, Part 1: Material Specification ULC CAN/ULC-S717.1 Standard for Flat Wall Insulating Concrete Form (ICF) Units – Material Properties Notes to Table 5.9.1.1.: (1) See Note A-Table 5.9.1.1. (2) The flame-spread rating of gypsum board shall be determined in accordance with CAN/ULC-S102, “Test for Surface Burning Characteristics of Building Materials and Assemblies,” in lieu of ASTM E84 “Surface Burning Characteristics of Building Materials”, as indicated in ASTM C1396 / C1396M “Gypsum Board.” (3) The flame-spread rating of glass mat gypsum panels shall be determined in accordance with CAN/ULC-S102 “Test for Surface Burning Characteristics of Building Materials and Assemblies,” in lieu of ASTM E84, “Surface Burning Characteristics of Building Materials,” as indicated in ASTM C1658 / C1658M “Glass Mat Gypsum Panels.” (4) For the purpose of compliance with Part 5, ASTM D3019 / D3019M, “Lap Cement used with Asphalt Roll Roofing, Non-Fibered, Asbestos-Fibered, and Non-Asbestos- Fibered,” applies only with respect to non-fibered and non-asbestos-fibered (Types I and II) of asphalt roll roofing.

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.