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Flat Roofs
Course 25

About the course

Flat roofs are rarely truly flat. Most have a slight slope that channels water to roof drains. This lesson covers the membrane style of roof that is needed for a flat roof. The lesson begins with the parts of a flat roof and how the system drains moisture. This includes creating a slight slope to the drain, drains and scuppers, parapet walls, and cant strips. Next, the types of membrane-style roofs are covered. This includes multi-ply "hot-mop" systems and single-ply modified bitumen and elastomeric systems. A detailed review of the different types of installation for each type of roof is next Cap sheets, ballast, flashing, and fastening systems are also covered.

Course 25: Flat Roofs

  • Chapter 1: Membrane Roof System 5:41 (11.0 MB)
  • Chapter 2: Multi-ply Membrane Roof System 1:34 (4.4 MB)
  • Chapter 3: Multi-ply Membrane Roof Installation 5:56 (21.1 MB)
  • Chapter 4: Single Membrane Roof System 5:13 (16.3 MB)
  • Chapter 5: Elastomeric Roof System 6:06 (16.1 MB)

Related Courses

Course 29: Tile Shingles
Course 30: Other Roof Coverings