Roofing Application Standards Manual

ARCA divides roof systems and materials into two classifications: low slope and steep slope. Low slope roofing includes water impermeable, or weatherproof, types of roof membranes installed on slopes less than or equal to 2:12. Steep slope roofing includes watershedding types of roof coverings installed on slopes exceeding 4:12.

Low-Slope roofing

There are three classifications of low slope roof membranes or systems.

1. Built-up roof (BUR) membranes
2. S.B.S-modified bitumen membranes
3. Single-ply membranes
1. Thermoset membranes (e.g., EPDM)
2. Thermoplastic membranes (e.g., PVC, TPO)

Steep-Slope Roofing

There are six classifications of steep slope roof coverings.

1. Asphalt shingles
2. Metal Tile
3. Concrete tile
4. Slate Tile
5. Cedar shakes and shingles
6. Architectural Standing Seam Metal

PART 1 - INTRODUCTION

Introduction (15kb)

PART 2 - LOW-SLOPE ROOFING

Division 1 - Built-Up Roofing

1. Section 1 - Roof Decks (13kb)
2. Section 2 - Control Joints, Perimeters and Penetrations (34kb)
3. Section 3 - Separator Sheets & Auxiliary Leveling Surfaces (16kb)
4. Section 4 - Vapour Retarders (2.6mb)
5. Section 5 - Insulation (23kb)
6. Section 6 - Primary Membrane (27kb)
7. Section 7 - Membrane Flashing (537kb)
8. Section 8 - Sheet Metal Flashings (19kb)
9. Section 9 - Protected Membrane & Combination Designs (17kb)
10. Section 10 - Re-Roofing (16kb)

Division 2 - S.B.S. Modified Bituminous Roofing

1. Section 1 - Roof Decks (13kb)
2. Section 2 - Control Joints, Perimeters and Penetrations (34kb)
3. Section 3 - Separator Sheets & Auxiliary Leveling Surfaces (16kb)
4. Section 4 - Vapour Retarders (2.6mb)
5. Section 5 - Insulation (27kb)
6. Section 6 - Primary Membrane (26kb)
7. Section 7 - Membrane Flashing (339kb)
8. Section 8 - Sheet Metal Flashings (19kb)
9. Section 9 - Protected Membrane & Combination Designs (16kb)
10. Section 10 - Re-Roofing (16kb)
11. Section 11 - Vegetated Roof Systems

Division 3 - E.P.D.M. Roofing

1. Section 1 - Roof Decks (13kb)
2. Section 2 - Control Joints, Perimeters and Penetrations (20kb)
3. Section 3 - Separator Sheets & Auxiliary Leveling Surfaces (13kb)
4. Section 4 - Vapour Retarders (2.5mb)
5. Section 5 - Insulation (20kb)
6. Section 6 - Primary Membrane (25kb)
7. Section 7 - Membrane Flashing (75kb)
8. Section 8 - Sheet Metal Flashings (18kb)
9. Section 9 - Protected Membrane & Combination Designs (10kb)
10. Section 10 - Re-Roofing (14kb)

Division 4 - Thermoplastic Roofing

1. Section 1 - Roof Decks (13kb)
2. Section 2 - Control Joints, Perimeters and Penetrations (20kb)
3. Section 3 - Separator Sheets & Auxiliary Leveling Surfaces (13kb)
4. Section 4 - Vapour Retarders (1.4mb)
5. Section 5 - Insulation (20kb)
6. Section 6 - Primary Membrane (26kb)
7. Section 7 - Membrane Flashing (69kb)
8. Section 8 - Sheet Metal Flashings (18kb)
9. Section 9 - Protected Membrane & Combination Designs (16kb)
10. Section 10 - Re-Roofing (14kb)
11. Section 11 - Vegetated Roof Systems

PART 3- STEEP-SLOPE ROOFING

1. Section 1 - General (14kb)
2. Section 2 - Asphalt Shingle Roofing (25kb)
3. Section 3 - Concrete Tile Roofing (26kb)
4. Section 4 - Slate Tile Roofing (27kb)
5. Section 5 - Cedar Shake & Cedar Shingle Roofing (30kb)
6. Section 6 - Metal Tile Roofing (26kb)

PART 4 - METAL ROOFING

1. Section 1 - General (13kb)
2. Section 2 - Architectural Standing Seam Metal Roofing (30kb)
3. Section 3 - Architectural Standing Seam Metal Roofing Details (708kb)

PART 5 - APPENDIX

1. Typical Sheet Metal Flashing Details (3.8mb)
2. Low-Slope Glossary (25kb)
3. Steep-Slope Glossary (21kb)

Representing Alberta's Roofing Industry Since 1961

ARCA Alberta Roofing Contractors Association. All Rights Reserved. 2009.