ACTUAL COMPLETE REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
when you install a patch on BUR membrane for fastener backout, you
should clean and prepare an area of at least --- inches beyond the
perimeter of the defect. The first patch ply should extend at least ---
beyond the perimeter of the defect. the next patch ply should at least --
- beyond the first ply.
18 inch, 6 inch ,3 inch
which of the following is the most true about vapor movement?
A. vapor drive moves from inside to outside a building in cooling climate
conditions
B. vapor drive is constant all year in buildings located in mixed climate
conditions
C. vapor drive moves from inside to outside a building in heating climate
conditions
D. vapor drive causes more water vapor movement from diffusion than is
air led
A. vapor drive moves from inside to outside a building in cooling climate
conditions
,in the vaulted ceiling, which of these would most likely lead to rapid
deterioration of a roofing system?
A. large-volume attic spaces with roof slopes greater than 8:12
B. use of a vapor retarder where January temperatures are 30 degrees or
less
C. installation of a balanced ventilation system with slopes less than 8 in
12
D. asphalt-based components installed directly over insulated, non
vented decks
D. asphalt-based components installed directly over insulated, non
vented decks
which of these is not a likely indicator or inadequate ventilation of a
steep slope roofing system?
A. rust on the underside of a metal deck
B. moisture on the top surface of the deck
C. A history of perimeter leakage on the ceiling
D. staining and mold growth on the wood structure
B. moisture on the top surface of the deck
,which of the following serves as the weatherproofing component in a
low sloping BUR roof membrane?
A. Polymer-modified bitumen
B. Aggregate or mineral granules
C. bitumen or cold-applied adhesive
D. Thermoset or thermplastic membranes
C. bitumen or cold applied adhesive
C. bitumen or cold-applied adhesive
How should reinforcement be installed in a build-up low-slope roof
membrane?
A. in a factory-surfaced metal foil
B. applied directly to the roof deck
C. embedded between layers of waterproofing material
D. as liquid applied coatings when aggregate is added to the top layer
C. embedded between layers of waterproofing material
What component in thermoset or thermoplastic roof membranes
provides the reinforcement?
A. fibers
B. adhesives
C. polymers
D. benzyl plastic additives
C. polymers
, (fix) which of these is most accurate about open valleys in a wood
roofing system?
A. tapered valleys increase the risk of leakage
B> tapered valleys should be wider at the high point
C. metal valley flashing is used to carry runoff water
D. closed valleys are the most effective in regions that experience heavy
precipitation
C. metal valley flashing is used to carry runoff water
what provides the weatherproofing in a build-up roof system?
A. felt
B. Aggregate
C. bitumen
D. Plies
C. bitumen
The temperature in which heated bitumens is at proper viscosity is?
A. 460 degrees
B. 360 degrees
C. 560 degrees
D. 540 degrees
C. 560 degrees