Student Verification

Course Information

History of Roof Slope

Steep-Slope Roof

Low-Slope Roof

Design Considerations

Roof Failure

Invasive Testing

Identifying Defects

Economic Reasons for Roof Failure

Technical Reasons for Roof Failure: Environmental Damage

Technical Reasons for Roof Failure: New Materials

Technical Reasons for Roof Failure: Workmanship

Scope of the Inspection

Document Review and Interviews Pertaining to the Roof

Functions of the Structural Roof Deck

Steel Roof Decks

Cementitious Wood Fiber Roof Decks

Structural Concrete Decks

Wood Panel Decks

Wood Planks and Wood Boards

Inspecting the Structural Roof Deck

Expansion Joint

Inspecting Expansion Joints

Difference Between Low-Slope Roof Air Barriers and Vapor Retarders

Fundamentals of Air Barriers and Vapor Retarders

Air Barriers

Advantages and Disadvantage of Thermal Insulation in Commercial Roofing

Conventional Roof System

Protected Membrane Roof (PMR)

Types of Low-Slope Roof Thermal Insulation

Tapered Insulation

Cover Boards

Inspecting Thermal Insulation and Cover Boards

Types of Low-Slope Roof Membrane Installations

Billowing, Tenting and Blow-Offs

Design Considerations

Membrane Identification

Built-Up Roof

Modified Bitumen Roof

Single-Ply Roof

Metal Panel Roofs

Types of Openings and Flashing Details

Horizontal Terminations at Roof Openings

Vertical Terminations at Walls and Parapets

Additional Modes of Failure for Flashing That the Inspector Should Report On

Drainage Basics

Types of Low-Slope Roof Drainage

Achieving Positive Drainage

Water Damage and Stains

Safety First

Accessing the Roof

Defect Inspection Checklist

Repair/replacement Cost Estimates

Low-Slope Commercial Roof Inspection of a Ballasted EPDM Roof Training Video

Low-Slope Commercial Roof Inspection of a Built-Up Roof Training Video

Low-Slope Commercial Roof Inspection of a Mechanically Attached Single-Ply Membrane Roof Training Video