Asphalt Shingle Application on Roof Slopes 1:6 to Less Than 1:3
This is the second edition of CSA Standard A123.52 (now CAN3-A123.52-M), Asphalt Shingle Application on Roof Slopes 1:6 to Less Than 1:3. It forms part of the series of Standards on bituminous roofing materials (A123.1-M through A123.52-M) and is written in SI (metric) units.
It supersedes the previous (Imperial) edition published in 1965 and reaffirmed in 1979.
This Standard was prepared by the Technical Committee on Bituminous Roofing Materials under the jurisdiction of the Standards Steering Committee on Building Materials and Products and was formally approved by these Committees. National Standard of Canada by the Standards Council of Canada.
This Standard describes the minimum application requirements for asphalt strip shingles or low slope shingles on roofs with slopes from 1:6 to less than 1:3.
Note: Roof Substrate and Ventilation Below Substrate. Appendix A is included to provide recommendations for acceptable substrate for shingles; Appendix B, recommendations for acceptable ventilation below the shingle substrate; Appendix C, recommendations on the application of asphalt shingles over insulation.