BUILDING CONSTRUCTION

Question 1

Gable Roof

Answer 1

Pitched roof with two sloped sides

Question 2

Hip Roof

Answer 2

Pitched roof with 4 sloped sides

Question 3

Mansard Roof

Answer 3

Roof with 4 sloping sides, break in the slope on all 4. May have a flat top

Question 4

Gambrel Roof

Answer 4

Two slopes on each side, upper one being flatter than the lower slope

Question 5

Sawtooth Roof

Answer 5

Vertical and sloping surfaces, resembles a

Question 6

Lamella Arch

Answer 6

Arch constructed of short wooden members connected in a specific geometric patten, risk of collapse when 20% strength lost

Question 7

Truss Roof

Answer 7

Strong roofing system composed of chords, diagonals, and gusset plates. Preassembled

Question 8

Bowstring Truss Roof

Answer 8

Truss with a curved top chord

Question 9

Arched Roof

Answer 9

Rounded roof usually associated with a bowstring truss

Question 10

Rafters

Answer 10

2x4 to 2x14 spaced 12-24”, support roof decking. Outward force pushes on exterior wall creating tension

Question 11

Type I Class

Answer 11

Fire Resistive

Question 12

Type III Class

Answer 12

Exterior Protected, masonry

Question 13

Type II Class

Answer 13

Noncombustible

Question 14

Type IV Class

Answer 14

Heavy Timber

Question 15

Type V Class

Answer 15

Wood Frame

Question 16

Panelized Roof

Answer 16

Beams, Purlins, Joists, Plywood decking

LamBeams spanning length or width of building, spaced 12-40 feet

Gusset plates beginning to substitute purlins, metal hangers

Joists 24” on center

Question 17

Conventional Roof

Answer 17

Wood rafters, 2x6 or larger, across outside walls. Supported with pilasters for strength
Older roofs may have scissor bracing (bridging)

Question 18

Lightweight Panelized Roof

Answer 18

Large prefab panels, made from plywood or OSB, assembled on the ground and lifted into place. Supporting structures are lighter materials (GLU LAM) beams.

Question 19

Lightweight Construction

Answer 19

Lack of mass (2x4 trusses)

Suspect connections (gusset plates, hurricane clips, roof clips)

Sheeting materials (OSB)

Gets strength from tension/compression (truss)

Age of building (new)

Question 20

Conventional Construction

Answer 20

Larger mass (2x6,8,10,12 rafters)

Full span of lumber between load bearing walls (2x8/10/12 floor joists that carry to beams) (beams rest on columns which transfer load to footers)

Sheeting materials (1x6, plywood)

Age of building (old)