Chapter 6: Roof Systems

Question 1

ROOF SLOPES:

Answer 1

+ FLAT ROOFS: structure may consist of

• reinforced concrete slabs
• flat timber or steel trusses
• timber or steel beams and decking
• wood or steel joists and sheathing

+ SLOPING ROOFS: structure may consist of

• wood or steel rafters and sheathing
• timber or steel beams, purlins and decking
• timber or steel trusses

Question 2

TYPES OF ROOFING:

Answer 2

\+ reinforced concrete roof slabs
\+ precast concrete roof systems
\+ structural steel roof framing
\+ steel rigid frames
\+ steel trusses
\+ space frames
\+ open-web joist framing 
\+ metal roof decking
\+ cementitious roof planks
\+ rafter framing
\+ light-gauge roof framing
\+ wood rafter framing
\+ wood plank-and-beam framing
\+ wood trusses