The Ontario Building Code | Material Standards

9.26.2.1. Material Standards

(1) Roofing materials shall conform to,

(a) CAN/CGSB-37.4-M, "Fibrated, Cutback Asphalt, Lap Cement for asphalt Roofing",

(b) CAN/CGSB-37.5-M, "Cutback Asphalt Plastic, Cement",

(c) CAN/CGSB-37.8-M, "Asphalt, Cutback, Filled, for Roof Coating",

(d) CGSB 37-GP-9Ma, "Primer, Asphalt, Unfilled, for Asphalt Roofing, Dampproofing and Waterproofing",

(e) CGSB 37-GP-21M, "Tar, Cutback, Fibrated, for Roof Coating",

(f) CAN/CGSB-37.50-M, "Hot Applied, Rubberized Asphalt for Roofing and Waterproofing",

(g) CGSB 37-GP-52M, "Roofing and Waterproofing Membrane, Sheet Applied, Elastomeric",

(h) CAN/CGSB-37.54, "Polyvinyl Chloride Roofing and Waterproofing Membrane",

(i) CGSB 37-GP-56M, "Membrane, Modified, Bituminous, Prefabricated, and Reinforced for Roofing",

(j) CGSB 41-GP-6M, "Sheets, Thermosetting Polyester Plastics, Glass Fiber Reinforced",

(k) CAN/CGSB-51.32-M, "Sheathing, Membrane, Breather Type",

(l) CSA A123.1 / A123.5, "Asphalt Shingles Made from Organic Felt and Surfaced with Mineral Granules / Asphalt Shingles Made from Glass Felt and Surfaced with Mineral Granules",

(m) CAN/CSA-A123.2, "Asphalt Coated Roofing Sheets",

(n) CSA A123.3, "Asphalt Saturated Organic Roofing Felt",

(o) CAN/CSA-A123.4, "Asphalt for Constructing Built-Up Roof Coverings and Waterproofing Systems",

(p) CSA A123.17, "Asphalt Glass Felt Used in Roofing and Waterproofing",

(q) CAN/CSA-A220.0-M, "Performance of Concrete Roof Tiles",

(r) CSA O118.1, "Western Red Cedar Shakes and Shingles", or

(s) CSA O118.2-M, "Eastern White Cedar Shingles".