Roofing MCQs Quiz Multiple Choice Questions & Answers

1. For open valleys, flash the valley with metal thats wide enough to extend at least

1. 12 inches under the slate
2. 4 inches under the slate
3. 6 inches under the slate
4. 8 inches under the slate

2. For slate tile installed over copper crickets, the slate should lap the copper at least how many inches?

1. 8
2. 2
3. 4
4. 6

3. Given a roof slope of 10 in 12 and a hip run of 12 feet, the actual length of any hip for the roof will be

1. 19.7 feet
2. 10 feet
3. 12 feet
4. 15.62 feet

4. Given four bundles of single-coursing No. 1 grade 16-inch wood shingles, the maximum recommended weather exposure for sidewall application is

1. 170 square feet applied at a 8 1/2-inch exposure
2. 140 square feet applied at a 7-inch exposure
3. 150 square feet applied at a 7 1/2-inch exposure
4. 160 square feet applied at a 8-inch exposure

5. Given number one handsplit shakes with 22 inch exposure, the number of bundles required per square is

1. 2.78
2. 9.09
3. 2.27
4. 4.17

6. good roofer should always when estimating a roof?

1. Photograph the roof
2. Measure the roof
3. Sketch the roof
4. Secure the ladder

7. Hip and ridge bundles contain how many units per bundle?

1. 60
2. 30
3. 40
4. 50

8. If a roof leaks it is most likely to leak

1. At a valley
2. At the perimeter
3. At a flashing point
4. Under the membrane

9. In a closed valley

1. Do not use asphalt plastic cement
2. The felt underlayment must be doubled in the valley area
3. Flash the valley with a 36 inch-wide layer of mineral or smooth surfaced roll roofing (50 pounds or heavier)
4. Metal flashing is the best choice

10. In damp areas where good ventilation is important clay tile roofs should have

1. counter batten system
2. Double selvage
3. hot mop application
4. ballast system

11. In high wind areas joints should be lapped at least how many inches?

1. 6
2. 2
3. 3
4. 4

12. In high wind areas the drip edge should be nailed on center how many inches apart?

1. 12
2. 2
3. 6
4. 8

13. In high wind areas the drip edge should be nailed on centers

1. 4 inch
2. 8 inch
3. 10 inch
4. 6 inch

14. In single layer applications, all felts should be lapped

1. Horizontally in shingle fashion a minimum of 2 inches
2. Vertically in shingle fashion a minimum of 2 inches
3. Horizontally in shingle fashion a minimum of 3 inches
4. Vertically in shingle fashion a minimum of 4 inches

15. is one of the least expensive metal valley flashing materials and therefore, most often used.

1. Tin
2. Aluminum
3. Copper
4. Zinc

16. Jimmy Joe installed the insulation using dead-level asphalt. Jimmy Joe is going to apply an EPDM roof membrane system. Jimmy Joe should

1. Insure the dead-level asphalt is completely dry before installing the EPDM roof membrane system
2. Install a slip sheet between the membrane and the incompatible substrate
3. Know that is not a recommended roofing application
4. Never mix EPDM systems with any type of asphalt application

17. Jimmy Joe is trimming the upper corner of shingles along the valley centerline at a 45 degree angle. The process of trimming the shingles is known as

1. Serration
2. Trimming the shingles
3. Dubbing
4. Cropping

18. Leaks normally occur around counterflashing during blowing rain because?

1. The nails do not penetrate the substrate far enough
2. There is not enough asphalt sealer at the joint
3. The counterflashing doesnt lap far enough over the base flashing
4. The shingles are not dubbed in cement

19. Lightweight insulated concrete roof decks must have a minimum thickness of inches.

1. 3
2. 1
3. 1
4. 2

20. Lightweight insulates concrete decks must have a minimum compressive strength of pounds per square inch.

1. 125-500
2. 50-75
3. 75-100
4. 100-125

21. Mechanical fasteners should penetrate concrete decks at least

1. 4
2. 1
3. 2
4. 3

22. Mechanical fastening of the membrane installed over treated wood nailers should be

1. 8 inches on center
2. 24 inches on center
3. 16 inches on center
4. 112 inches on center

23. Mechanically fastened EPDM systems must penetrate how far into concrete decks?

1. 3/4 inch
2. 1 foot
3. 6 inches
4. 1 inch

24. Mineral granules applied over mastic as roof surfacing should be deposited at the rate of pounds per square.

1. 60
2. 40 to 50
3. 50
4. 50 to 60

25. Mineral surfaced roll roofing should be installed when the temperature is above how many degrees?

1. 60
2. 40
3. 45
4. 50

26. Mission tile weighs approximately how many pounds per square?

1. 1300
2. 800
3. 900
4. 1000

27. Most leaks occur around vents in about every type of roof, usually because of

1. All of the above
2. Inadequate shingling around a vent
3. Improper flashing
4. Vent flashing not as wide as it should be

28. Nails used for roll roofing should be spaced how far apart?

1. 4 inches
2. 1 inch
3. 2 inches
4. 3 inches

29. Narrow EPDM sheets are usually

1. More than 5 feet wide
2. Less than 3 feet wide
3. 5 feet 6 inches wide
4. 4 feet 8 inches wide

30. new 3-tab roof using a 6-inch pattern will require a full shingle on the course.

1. Seventh
2. Third
3. Fifth
4. Sixth

31. No fasteners may be used within how many inches of centerline when flashing a closed-cut valley?

1. 6
2. 3
3. 4
4. 5

32. No fasteners may be used within inches of centerline in a woven.

1. 3
2. 6
3. 5
4. 4

33. No nail should be located closer than inches to the valley center line.

1. 24
2. 6
3. 12
4. 18

34. Normally shingle roofs are the maximum allowed on any structure.

1. 4
2. 1
3. 2
4. 3

35. Number 1 Straight-split 18 inch by 3/8 inch shingles with an 8 inch exposure has an approximate coverage of how many square feet per square?

1. 75
2. 100
3. 94
4. 80

36. Number 1 straight-split 18 inch long shakes with 7 1/2 inch exposure requires how many bundles per square?

1. 6
2. 3
3. 4
4. 5

37. Oakum applied prior to caulking is called

1. Sealing
2. Backer rod
3. Filler
4. Gapping

38. On a new shingle roof, nails should be inches long.

1. 2
2. 1
3. 1
4. 1

39. On a new slate roof, nails should be how many inch/es longer than twice the thickness of the slate?

1. 2
2. 1
3. 1
4. 1

40. On a wood roof, all may have a sheet metal patch except?

1. Resinous areas
2. Knots
3. Large cracks
4. Rotted wood

41. On closed-cut valleys, make sure the shingle end joints are at least how many inches from the centerline of a closed-cut or woven valley?

1. 12
2. 6
3. 8
4. 10

42. On roof slopes from 4:12 to 6:12 the tile requires

1. Nailing with one nail in addition to using mortar
2. Nailing with 2 nails and bulling
3. Nailing with one nail only
4. Fastening only

43. On roof slopes of less than 1 in 12 the roofer should

1. Prime both sides of the flashing
2. Wear tennis shoes with self-gripping soles
3. Wear a shoulder harness
4. Prime the facing side of the flashing

44. On roofs that slope more than 1/2 in 12, seal joints of flat seams of most metals with

1. Folding and nailing
2. Solder
3. Spiral bending tools
4. Caulking compound

45. On wood shingles with a 5 inch exposure, nail about inches from the bottom edge of the shingle.

1. 10
2. 2
3. 5
4. 7

46. One of the advantages of mineral surfaced roll roofing is

1. The variety of colors available
2. It is inexpensive
3. It will not buckle
4. It will last a long time

47. One of the drawbacks to using mineral surfaced roll roofing is

1. small tear will affect a large deck area
2. The sun will cause deterioration problems after 3 years
3. The granules will wash away over time
4. Tears and rips are hard to repair

48. The roof is 60 feet by 30 feet measured eave to eave. The height of the gable is 5 feet. The squares of shingle required to roof the residence is?

1. 19
2. 16
3. 17
4. 18

49. One square of 18 inch X 3/8-inch straight shakes with 10 inches laid to weather will cover approximately square feet.

1. 118
2. 94
3. 135
4. 110

50. One square of 18-inch X 3/8ths inch True Edge shakes with 8 inches laid to weather will cover approximately square feet.

1. 80
2. 56
3. 53
4. 70