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WorksheetsCommercial Roofs and Framing
Total questions: 12
Worksheet time: 5mins
What is the most common type of Commercial Roof?
Gambrel
Gable
Low Slope
Hip and Valley
Which type of framing is does not work with Pitched Roof Framing (Low Rise Buildings)?
Wood trusses or rafters
Column and I Beam
Light gauge steel trusses
–Open web steel joists (lower slopes)
Which options are true about low slope roofs?
Sometimes incorrectly called “flat” roofs
created with the folsem ratio index
Provide small slope to provide roof drainage and to prevent ponding
use only post and beam framing
Which type of roof framing is used in D8?
single unit roof frame on CMU load bearing wall
Light gauge steel trusses on CMU load bearing wall
Phoenix Sun
column and truss
Select the correct components of a typical low slope roof:
Insulation
Surfacing
exterior curtain support
reinforcing
weather proofing
The purpose of structural framing is to provide strength and stability, where strength holds the structure up while holding it down, compensating by the following loads
Gravity (horizontal)loads
Gravity (vertical) loads
tension
Lateral (sideways) loads
The purpose of structural framing is to provide strength and stability, where stability....
Maintains the shape and minimizes movement
retains its vertical articulation
minimizes and compensates for tension
boots
Low rise commercial buildings are similar to residential buildings and are:
4 stories and under
5 stories and under
3 stories and under
2 or 1 stories
However, usage of commercial buildings often differs from residential usage, select the correct differences
heavy traffic
heavier loads
standard loads
larger open spaces
vertical articulation
Which of the following is NOT a common commercial framing system?
Cast in place concrete
hybrid
structural steel framing
heavy timber
load bearing
The following image displays:
cast in place
cmu
hybrid framing
structural steel
The cost of a structure is directly related to the weight of materials used to build the structure
•Lower material weight = Lower cost
•Higher material weight = Higher cost
true
false
