Module 7: Ceiling and Roof Framing Review Questions
A roof with slope of 4 in 12 has a rise per foot of run of ___________________.
4"
A dormer is framed into the gable end of a building.
False
Double trimmers are used when framing _____________________.
roof openings
When placing underlayment over sheathing for roofs with a slope of 4" or less, the commonly used roofer's felt is _______________________.
15 pound
For a roof with a 36' span, the run is ______________________.
18'
Roof underlayment should be lapped _______________________.
2" at the top and 4" along the sides
The pitch of a roof that has a rise of 8' and a run of 12' is _______________________.
2/3
Calculate the number of 4' x 8' OSB panels that are needed for a gable roof measuring 42' long with a common rafter length of 12'-6".
34
Calculate the length of a ridgeboard for a gable roof with a 2' overhang on each end on a building measuring 24' x 40'.
44'
When the roof span is 36' and the pitch is 1/6, the total rise is _______________________.
6'
How many joists are required for an 8' x 10' tool shed when the joists are spaced 16" on center (OC)?
9
A roof that rises 9" for each foot of run has a slope of _________________________.
9 in 12
An attic space must be tightly sealed to prevent moisture from accumulating in it.
False.
run
Letter A indicates the _____________.
rise
Letter B indicates the ______________.
span
Letter C indicates the______________________.
When laying out a roof opening, what tool is used to transfer the layout from the floor to the roof?
Plumb bob
14'-8"
The length of a common rafter for a 20'-wide building with a 10" rise per foot of run is ______________________________.
32
The number of common rafters needed to frame a 20' long gable roof for a house framed on 16" centers with no overhang is __________________.
12"
The rise per foot of run of a roof with a pitch of 1/2 is _________________________.
RIbbands are used for longer spans of ceiling joists to prevent twisting and bowing.
True
When cutting a bird's mouth, a handsaw should be used for the finishing cuts.
True
Immediately after nailing the plywood sheathing on a roof frame, you should install _____________________.
a felt underlayment
The roof framing system in which carpenters assemble joists and rafters on-site is called __________________________.
a stick-built system
When ceiling joists are to be spliced, the proper method of splicing is indicated in the _________________________.
architectural drawings
The part of the rafter that rests squarely on the top of the plate is the ________________________.
bird's mouth
Open web steel joists are typically attached to the structural steel frame ______________________________.
by welding
A rafter that touches neither the ridge nor the plate is called a ______________________.
cripple jack rafter
When rigging a truss with a span of 36', you must use a _________________________________.
double choker
When framing a gable end, it is necessary to measure and cut ______________________________.
each pair of studs
A hip roof has ____________________________________.
four sloping sides
Trusses that carry other trusses or support a large area of roof framing are called ________________________________.
girders
The roof run measurement is usually equal to _________________________.
half the span
To determine the final measurement when laying out a common rafter, it is necessary to deduct ___________________.
half the thickness of the ridgeboard
A roof framing member that extends diagonally from the outside corner of the top plate to the ridge is the ____________________________.
hip rafter
The type of roof that has four sides running toward the center of the building is the _________________________.
hip roof
Which type of roof is considered an efficient design in areas subject to hurricanes?
hip roof
A waterproof underlayment should be used along roof edges _______________________.
in cold climates where snow accumulates
The barge rafter is connected to the common rafter using _____________________.
lookouts
In areas that are prone to heavy winds, what type of fastener or device may be required to attach trusses to the top plate?
metal tiedowns
The type of sheathing that should be installed if the roof finish is composition shingles is ___________________.
plywood
A rafter support that parallels the top plate and the ridgeboard is known as a ___________________________.
purlin
Positioning or installing trusses must be done under the supervision of a(n) __________________________________.
qualified rigger
Trusses must be temporarily braced until ___________________.
roof sheathing is in place
Half the distance from the outside of one exterior wall to the outside of the opposite exterior wall is the ____________________________.
run
The horizontal distance from the outside of the top plate to the center of the ridgeboard is called the _________________________.
run
A strongback is installed to _______________________________.
straighten and strengthen the ceiling joists
L-shaped members that run the length of the roof and are used to straighten and strengthen the ceiling joists are _________________________.
strongbacks
28
the number of sheets of plywood sheathing needed for a house 30' long with a span of 24' and with 8" rise per foot of run is _________________________. (assume no overhang)
The greater the unit rise of the rafter, _________________________.
the steeper the roof
The upper ends of the outside ends of ceiling joists must be cut ________________________.
to match the rafter pitch
The short leg of a rafter square is known as the __________.
tongue
The rafter locations should be laid out on the ______________________________.
top plate and ridgeboard
Ceiling joists span the narrow dimensions of a building from ____________________________.
top plate to top plate
A framed or jointed structure commonly used for roof frames is called a ___________________.
truss
A gable roof has ___________________________________.
two sloping sides
The distance a rafter rises vertically for each foot of run is known as the ____________________________.
unit rise
When you are using a Speed Square, the length of the rafter is determined by ______________________________.
using rafter tables in the instruction manual
Bar joists are fastened to the structural steel by ____________________.
welding
