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Welcome to the RCABC Roofing Practices Manual

The RPM Online is the official version of the Roofing Practices Manual and supersedes all other printed versions which may be in circulation.


The Roofing Practices Manual (RPM) is the official guide for RCABC Members, Accepted Inspectors, designers, architects and specification writers designing or applying roofing and waterproofing systems, and describes the RoofStar Guarantee Standards, Guiding Principles and Recommended Practices necessary to qualify for a RoofStar Guarantee. The RPM meets or exceeds the current national and provincial standards for construction and wind uplift design resistance. It also includes

  • Materials accepted for the RoofStar Guarantee Program
  • Construction details
  • Design guidelines
  • Best Practices
  • Reference materials


NOTICE to Readers: Yellow highlighted text indicates a recent change to the Roofing Practices Manual. Highlighting remains in effect for 120 days. Consult the Technical Updates for a list of recent changes to the RPM.



Table of Contents
A. About
Learn more about...
Thermal Bridging 2.JPG Low-slope Roof Insulation
SBS Systems page thumb.JPG Low Slope Membrane Roof Systems
Asphalt Shingles.JPG Asphalt Shingle Roof Systems
Waterproofing Planters.jpg Waterproofing Systems & Planters
Construction Details
RTU Curb.jpg Low-slope Roof Construction Details
Shingle Application (all slopes).jpg Steep-slope Roof Construction Details
Pre-curb for Planter (new).jpg Waterproofing System Construction Details