MICHIGAN ROOFING EXAM PREP
QUESTIONS AND CORRECT
DETAILED ANSWERS TOP RATED
VERSION FOR 2026-2027 ALREAY A
GRADED |NEW AND REVISED
When nailing 1/2" O.S.B. board to a floor joist system, what is the
maximum spacing of nails along the joists? - ANSWER- 12 inches
Masonry flashing shall be located ______________________. -
ANSWER- below the first course above grade
Without a vapor barrier, the roof ventilation requirement of the total net
free ventilating area shall not be less than 1 S.F. to __________ of the
area to be ventilated. - ANSWER- 150 S.F.
For roof ventilation, if there is a vapor barrier the net free cross
ventilation is reduced to 1 square foot to ________. - ANSWER- 300
S.F.
You are responsible for determining the ventilation requirements for a
home under construction. If the home has a gable roof and vapor barrier,
what is the minimum ratio of vent area to total attic space area? -
ANSWER- 1:300
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A 3,000 square foot roof requires 10 square feet of ventilation. The
ventilation will be divided equally between ridge and soffit vent. How
many square feet of soffit vent will need to be purchased? - ANSWER-
5
Pick the best solution from the list of possible choices. What should be
done to unheated attic space? - ANSWER- Be vented to minimize
condensation.
The minimum crawl space ventilation required is 1 square foot per each
______ square feet of under floor space without a vapor barrier. -
ANSWER- 150
A ventilating opening within a crawl space shall be located within
__________ of each corner of a building. - ANSWER- 3 feet
An access opening to a crawl space through a perimeter wall shall be a
minimum size of - ANSWER- 16" x 24"
According to code, wood beams, rafters, and joists may NOT be notched
in the middle - ANSWER- 1/3
Truss design drawings shall be provided to the ______________ and
approved prior to installation. - ANSWER- Building official
Truss design drawings shall include: - ANSWER- Span, spacing, and
loads