WITH 100% CORRECT ANSWERS
What is the purpose of thermal insulation? - Answer- Slow heat transfer into and out of
the building
What are types of insulation used in roofing? - Answer- Batt, cellulose fiberboard, foam,
perlite
What is the purpose of a vapor retarder? - Answer- Restrict the passage of water vapor
and humidity
What materials are used as vapor retarders? - Answer- Plastic sheets, bituminous
membranes, roofing felts
What problem can occur without proper vapor control? - Answer- Entrapped moisture in
the roofing system
What is flashing? - Answer- Material used to prevent water penetration at joints and
edges
Where is flashing typically installed? - Answer- Edges, penetrations, and intersections
What is a pitch pan? - Answer- A flashing method used around roof penetrations
What is a built-up roofing system? - Answer- Multiple layers of roofing felt and asphalt
What is modified bitumen roofing? - Answer- An asphalt-based roofing system with
added modifiers
What is cold-applied roofing? - Answer- Roofing installed without heating asphalt
What is a parapet wall? - Answer- A wall extending above the roof edge
What happens where a roof meets a parapet wall? - Answer- Membrane and base
flashing turn up and are sealed
What division covers roofing materials? - Answer- Division 07