Deck 12: Roof Framing

Question 1

The triangular areas formed by rake rafters and wall plate at the ends of a building are called ____.

A) fields
B) boundary plates
C) cross-sections
D) gables

Answer 1

D

Question 2

The shed roof slopes in only one direction.

Answer 2

True

Question 3

The ridge cut of a hip rafter is a compound angle called a(n) ____ cut.

A) end
B) bevel
C) cheek
D) tail

Answer 3

C

Question 4

If the unit rise is 6 inches and the unit run is always 12 inches, then the unit length is ____ inches.

A) 12
B) 13.42
C) 15
D) 18

Question 5

The mansard roof is a combination of the gambrel and hip roofs.

Question 6

Wood I-beams may not be used for rafters.

Question 7

Step-off method for laying out rafters is fastest and most accurate method.

Question 8

The ____ cut is the cut at the lower end of a rafter.

A) wild
B) tail
C) final
D) common

Question 9

Gable studs have a common difference in length.

Question 10

If an overhang is specified at the rakes, horizontal structural members called ____ must be installed.

A) web stiffeners
B) wall plates
C) lookouts
D) headers

Question 11

Projection is the horizontal distance under the overhang.

Question 12

Valley rafters are more similar than they are different to hip rafters..

Question 13

Because the hip rafter run is at a ____-degree angle from the plates, the amount of horizontal distance it covers (total run) is greater than that of the common rafter.

A) 30
B) 45
C) 60
D) 75

Question 14

A ____ is the sloping structural member of a roof frame.

A) ridge
B) rafter
C) joist
D) stud

Question 15

There are typically three plumb lines and two level lines on a common rafter.

Question 16

The most common roof style is the ____ roof where two sloping roof surfaces meet at the top.

A) gable
B) shed
C) hip
D) intersecting

Question 17

Span of a building is the same as the run of the building.

Question 18

The carpenter can at any time cut or remove the chords, braces, or webs of a truss system.

Question 19

The ____ is the ratio of rise to span of a roof.

A) plumb line
B) level line
C) yaw
D) pitch

Question 20

The total ____ is the total vertical distance that a roof rises.

A) run
B) span
C) rise
D) line length

Question 21

To estimate the number of ____ needed in a roof construction, divide the width of the building by the OC (on center) spacing and add two.

A) gable ridgeboards
B) gable roof fascia
C) common rafters
D) gable end studs

Question 22

The amount of rafter shortening is always measured at ____ degree angles to the plumb cut.

A) 45
B) 60
C) 90
D) 135

Question 23

The unit of run for both hip rafters and valley rafters is ____ inches.

A) 12
B) 16.97
C) 18.44
D) 24

Question 24

The length of the hip roof ____ is found by subtracting the width of the building from the length of the building.

A) ridgeboard
B) rafter
C) backing
D) plate

Question 25

A roof truss consists of upper and lower ____ and diagonals called web members.

A) joists
B) rafters
C) chords
D) arcs

Question 26

A(n) ____ is a framed projection above the plane of the roof.

A) extension
B) gambrel
C) channel
D) dormer

Question 27

____ rafters form the intersection of the slopes of two roofs.

A) Common
B) Bridge
C) Ridge
D) Valley

Question 28

____ are smaller roof members that actually support the roofing materials yet are themselves supported by other main rafters or trusses.

A) Struts
B) Purlins
C) End braces
D) Eaves

Question 29

____ provides rigidity to the roof frame and a nailing base for the roof covering.

A) Bracing
B) Buttressing
C) Sheathing
D) Reinforcing

Question 30

Temporary bracing for trusses should be no less than 2 * 4 lumber, with a minimum length of ____ feet.

A) 8
B) 16
C) 24
D) 36