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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.

Technical Updates

Table of Contents

A. About Introduction The RoofStar Guarantee Program Independent Inspections Requesting and Specifying a RoofStar Guarantees B. Essential Elements Design Considerations Roof Classes Roof Plans Roof Decks Roof Deck Overlay Vapour Control Insulating the Roof Insulation Joints and Overlay Boards Fasteners & Fastening Requirements BUR Materials Low-slope Membranes Steep-slope Membranes Membrane Surfaces Protected and Modified Protected Roof Systems Eave Protection Building Ventilation C. Accepted Materials D. Low Slope Roofs SBS Roof Systems EPDM (Thermoset Membranes) Roof Systems TPO/PVC (Thermoplastic Membranes) Roof Systems Other Flexible Membrane Roof Systems E. Steep Slope Roofs ASM (Architectural Sheet Metal) Roof Systems Asphalt Shingles Roof Systems Cedar Shakes & Shingles Roof Systems Tile & Slate Roof Systems F. Waterproofing Plazas, Promenades and Terraces G. Construction Details H. General Information Roof Maintenance Conversion Tables and Charts Metric and Standard Measurements (Symbols and Guidelines) Additional Standards for Materials Health & Safety Glossary Bibliography and References

Learn more about...
Low-slope Roof Insulation	Low Slope Membrane Roof Systems	Asphalt Shingle Roof Systems	Waterproofing Systems & Planters

Construction Details
Low-slope Roof Construction Details	Steep-slope Roof Construction Details	Waterproofing System Construction Details