Roofing MCQ Multiple Choice Questions Answers - Page 3 for Practice
61. EPDM membranes should never be installed with which of the following?
Correct Answer is: Plastic cement and dead level
62. Existing gypsum decks when re-roofed require fasteners.
Correct Answer is: Nail-tite Type A
63. Expansion joints may be installed in all of the following except?
Correct Answer is: In a valley
64. Flat and steep asphalts can be heated safely to degrees Fahrenheit.
Correct Answer is: 450 and 475
65. For open valley application trimming off corners of shingles is referred to as
Correct Answer is: Dubbing
66. For open valleys, flash the valley with metal thats wide enough to extend at least
Correct Answer is: 4 inches under the slate
67. For slate tile installed over copper crickets, the slate should lap the copper at least how many inches?
Correct Answer is: 4
68. 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
Correct Answer is: 19.7 feet
69. Given four bundles of single-coursing No. 1 grade 16-inch wood shingles, the maximum recommended weather exposure for sidewall application is
Correct Answer is: 150 square feet applied at a 7 1/2-inch exposure
70. Given number one handsplit shakes with 22 inch exposure, the number of bundles required per square is
Correct Answer is: 2.27
71. good roofer should always when estimating a roof?
Correct Answer is: Sketch the roof
72. Hip and ridge bundles contain how many units per bundle?
Correct Answer is: 40
73. If a roof leaks it is most likely to leak
Correct Answer is: At a valley
74. In a closed valley
Correct Answer is: Flash the valley with a 36 inch-wide layer of mineral or smooth surfaced roll roofing (50 pounds or heavier)
75. In damp areas where good ventilation is important clay tile roofs should have
Correct Answer is: counter batten system
76. In high wind areas joints should be lapped at least how many inches?
Correct Answer is: 3
77. In high wind areas the drip edge should be nailed on center how many inches apart?
Correct Answer is: 2
78. In high wind areas the drip edge should be nailed on centers
Correct Answer is: 4 inch
79. In single layer applications, all felts should be lapped
Correct Answer is: Horizontally in shingle fashion a minimum of 2 inches
80. is one of the least expensive metal valley flashing materials and therefore, most often used.
Correct Answer is: Aluminum
81. Jimmy Joe installed the insulation using dead-level asphalt. Jimmy Joe is going to apply an EPDM roof membrane system. Jimmy Joe should
Correct Answer is: Install a slip sheet between the membrane and the incompatible substrate
82. 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
Correct Answer is: Dubbing
83. Leaks normally occur around counterflashing during blowing rain because?
Correct Answer is: The counterflashing doesnt lap far enough over the base flashing
84. Lightweight insulated concrete roof decks must have a minimum thickness of inches.
Correct Answer is: 3
85. Lightweight insulates concrete decks must have a minimum compressive strength of pounds per square inch.
Correct Answer is: 125-500
86. Mechanical fasteners should penetrate concrete decks at least
Correct Answer is: 1
87. Mechanical fastening of the membrane installed over treated wood nailers should be
Correct Answer is: 8 inches on center
88. Mechanically fastened EPDM systems must penetrate how far into concrete decks?
Correct Answer is: 1 inch
89. Mineral granules applied over mastic as roof surfacing should be deposited at the rate of pounds per square.
Correct Answer is: 50 to 60
90. Mineral surfaced roll roofing should be installed when the temperature is above how many degrees?
