Roofing Exam 2026 || 100% Accurate Answers.
Which of these is NOT among the purposes of a roof deck?
A) Provide Fire Resistance
B) Provide Structural Support
C) Accommodate building movement
D) Provide waterproofing and moisture control correct answers D) Provide waterproofing and
Moisture control
Which of the following are non-stationary loads that a roof deck must be able to support?
A) Sheathing overpayment
B) Mobile installation equipment
C) Underside Mechanical Equipment
D) The weight of the deck and roof membrane correct answers B) Mobile installation equipment
Which of these most accurately describes the makeup of lightweight insulating concrete?
A) Portland cement and water with chemical additives and no aggregate material.
B) Portland cement and water aggregates such as stone or crushed gravel.
C) Portland cement and water with prelate, vermiculite, and polystyrene beads
D) Portland cement and water with aggregates such as shale, clay or slate correct answers C)
Portland cement and water with prelate, vermiculite, and polystyrene beads.
Which of these most accurately describes the makeup of structural lightweight concrete?
A) Portland cement and water and impregnated with an air-entraining agent or pre-generated
foam
B) Portland and cement and water with aggregates such as crushed stone or gravel
C) Portland cement and water with perlite, vermiculite, or polystyrene beads
D) Portland cement and water with aggregates such as shale, clay or expanded slate correct
answers D) Portland cement and water with aggregates such as shale, clay or expanded slate
Why does NRCA recommend replacing roof decks made of laminated insulation and OSB?
A) Leakage is much more likely with composite wood panels made of OSB
B) Their tendency to hold moisture can lead to dimensional changes and faster back out
C) These composite roof decks have a negative chemical effect in materials
D) These composite roof decks cause flashings to fail correct answers B) their tendency to hold
moisture can lead to dimensional changes and fastener back out
Which statement most accurately describes wood-plank and wood panel decks
A) The proper thickness of wood material is determined by design loads.
B) A wood-plank deck should have at least 2-inch nominal thickness
C) Plywood decks are required to be thicker than OSB decks.
D) All grades of plywood and OSB are suitable for roof decks correct answers A) The Proper
thickness of wood material is determined by designed loads.
Which statement most accurately describes the best roofing system?
A) A system with a warranty of at least 10 years.
,B) A System that includes a long term service agreement in its warranty
C) A System that is matched to building specifications and characteristics
D) A System with a warranty that includes no restrictive provisions correct answers A) A system
with a warranty of at least 10 years
How should reinforcement be installed in a built-up low-slope roof membrane?
A) In factory-surfaced metal foil
B) Applied directly to the roof deck
C) Embedded between layers of waterproofing material
D) As liquid-applied coating when aggregate is added to the top layer correct answers C)
Embedded between layers of waterproofing material
Which of these is recommended while heating asphalt bitumen during the installation of a low-
slope roofing membrane?
A) Maintain kettle and tanker temperatures within 5 degrees of the flash point temperature
B) Apply asphalt at 5 degrees if maximum equiviscous temperature
C) Measure the EVT after it is applied to the roofing membrane
D) Circulate bitumen while heating is underway correct answers D) Circulate bitumen while
heating is underway
Which of these is the best way to apply built-up roofing plies in low-slope roofing membranes?
A) As a complete roof membrane in a single day
B) In phased applications spaced over several days
C) Sealed with hot bitumen or bituminous roof cement
D) Allowing bladed coating of hot asphalt between layers to set overnight correct answers A) As
a complete roof membrane is a single day
Which of the following serves as the weatherproofing component in single ply low-slope roof
membranes?
A) Polymer-modified bitumen
B) Aggregate or mineral granules
C) Bitumen or cold-applied adhesive
D) Thermoset or thermoplastic membranes correct answers D) Thermoset or thermoplastic
membranes
Which of these adds most to fire resistance in low-slope roof membranes?
A) Organic felt, glass-fiber ply sheet or polyester fabric
B) Aggregate or mineral granule surfacing
C) Polymer-modified roof cement and adhesives
D) Bitumen or cold-applied adhesive correct answers B) Aggregate or mineral granule surfacing
Which of these is most appropriate for installing eave edge metal in asphalt shingle roofs?
A) Extend the felt over the flange
B) Install the felt under the flange
C) Butt the underlayment to the metal drip edge
D) Set the metal edge in all-weather adhesive correct answers A) Extend the felt over the flange
, Which statement most accurately describes asphalt shingles used in residential roofing?
A) All major types of shingles are available in custom shapes
B) The most common dimension for strip shingles in 12 inches by 36 inches
C) All manufactures must make strip shingles to the same dimensions
D) T-lock shingles usually use a stronger self-sealing adhesive tape than other types. correct
answers B) The most common dimension for strip shingles in 12 inches by 36 inches
Which of the following is the not part of the composition of an asphalt shingle?
A) A reinforcing mat
B) Asphalt and fillers
C) Thermoplastic layers
D) A mineral granule surfacing correct answers C) Thermoplastic layers
Which of these is the most important performance characteristic of granules on asphalt shingles?
A) To offer a wide range of textures
B) To provide a wider range of colors
C) To protect the coating grade asphalt surface
D) To allow for proper application of saturantgrade asphalt correct answers C) To protect the
coating grade asphalt surface
What does NRCA recommend when installing and asphalt shingle roof?
A) A Minimum of six nails per shingle should be used for all roofs
B) A Minimum of three nails per shingle should be used for all roofs
C) A Minimum of six nails per shingles should be used for roofs in high-wind areas
D) A Minimum of four staples per shingles should be used only in individual shingles correct
answers C) A minimum of six nails per shingles should be used for roofs in high-wind areas
Which of these materials are most likely to cause more rapid deterioration in roofing systems
with vaulted or cathedral ceilings?
A) Large-volume attic spaces with roof slopes greater than 8:12
B) Use of vapor retarder where January temperatures are 30F of less
C) Installation of a balanced ventilation system with slopes less than 8:12
D) Asphalt-based components installed over insulated, non-vented decks correct answers D)
Asphalt-based components installed over insulated, non-vented decks
Which of these is a common risk from use of nail-base insulation and its impact on steep slope
assemblies?
A) Condensation or moisture accumulation
B) Rapid heat loss due to the lack of insulation
C) Moisture damage from excessive ventilation
D) Separation of plywood or OSB layers in roof decking correct answers A) Condensation or
moisture accumulation
Which of these is most likely to need to be enhanced when installing valleys in areas prone to
regular freeze-thaw cycles and accumulations of ice and snow?
Which of these is NOT among the purposes of a roof deck?
A) Provide Fire Resistance
B) Provide Structural Support
C) Accommodate building movement
D) Provide waterproofing and moisture control correct answers D) Provide waterproofing and
Moisture control
Which of the following are non-stationary loads that a roof deck must be able to support?
A) Sheathing overpayment
B) Mobile installation equipment
C) Underside Mechanical Equipment
D) The weight of the deck and roof membrane correct answers B) Mobile installation equipment
Which of these most accurately describes the makeup of lightweight insulating concrete?
A) Portland cement and water with chemical additives and no aggregate material.
B) Portland cement and water aggregates such as stone or crushed gravel.
C) Portland cement and water with prelate, vermiculite, and polystyrene beads
D) Portland cement and water with aggregates such as shale, clay or slate correct answers C)
Portland cement and water with prelate, vermiculite, and polystyrene beads.
Which of these most accurately describes the makeup of structural lightweight concrete?
A) Portland cement and water and impregnated with an air-entraining agent or pre-generated
foam
B) Portland and cement and water with aggregates such as crushed stone or gravel
C) Portland cement and water with perlite, vermiculite, or polystyrene beads
D) Portland cement and water with aggregates such as shale, clay or expanded slate correct
answers D) Portland cement and water with aggregates such as shale, clay or expanded slate
Why does NRCA recommend replacing roof decks made of laminated insulation and OSB?
A) Leakage is much more likely with composite wood panels made of OSB
B) Their tendency to hold moisture can lead to dimensional changes and faster back out
C) These composite roof decks have a negative chemical effect in materials
D) These composite roof decks cause flashings to fail correct answers B) their tendency to hold
moisture can lead to dimensional changes and fastener back out
Which statement most accurately describes wood-plank and wood panel decks
A) The proper thickness of wood material is determined by design loads.
B) A wood-plank deck should have at least 2-inch nominal thickness
C) Plywood decks are required to be thicker than OSB decks.
D) All grades of plywood and OSB are suitable for roof decks correct answers A) The Proper
thickness of wood material is determined by designed loads.
Which statement most accurately describes the best roofing system?
A) A system with a warranty of at least 10 years.
,B) A System that includes a long term service agreement in its warranty
C) A System that is matched to building specifications and characteristics
D) A System with a warranty that includes no restrictive provisions correct answers A) A system
with a warranty of at least 10 years
How should reinforcement be installed in a built-up low-slope roof membrane?
A) In factory-surfaced metal foil
B) Applied directly to the roof deck
C) Embedded between layers of waterproofing material
D) As liquid-applied coating when aggregate is added to the top layer correct answers C)
Embedded between layers of waterproofing material
Which of these is recommended while heating asphalt bitumen during the installation of a low-
slope roofing membrane?
A) Maintain kettle and tanker temperatures within 5 degrees of the flash point temperature
B) Apply asphalt at 5 degrees if maximum equiviscous temperature
C) Measure the EVT after it is applied to the roofing membrane
D) Circulate bitumen while heating is underway correct answers D) Circulate bitumen while
heating is underway
Which of these is the best way to apply built-up roofing plies in low-slope roofing membranes?
A) As a complete roof membrane in a single day
B) In phased applications spaced over several days
C) Sealed with hot bitumen or bituminous roof cement
D) Allowing bladed coating of hot asphalt between layers to set overnight correct answers A) As
a complete roof membrane is a single day
Which of the following serves as the weatherproofing component in single ply low-slope roof
membranes?
A) Polymer-modified bitumen
B) Aggregate or mineral granules
C) Bitumen or cold-applied adhesive
D) Thermoset or thermoplastic membranes correct answers D) Thermoset or thermoplastic
membranes
Which of these adds most to fire resistance in low-slope roof membranes?
A) Organic felt, glass-fiber ply sheet or polyester fabric
B) Aggregate or mineral granule surfacing
C) Polymer-modified roof cement and adhesives
D) Bitumen or cold-applied adhesive correct answers B) Aggregate or mineral granule surfacing
Which of these is most appropriate for installing eave edge metal in asphalt shingle roofs?
A) Extend the felt over the flange
B) Install the felt under the flange
C) Butt the underlayment to the metal drip edge
D) Set the metal edge in all-weather adhesive correct answers A) Extend the felt over the flange
, Which statement most accurately describes asphalt shingles used in residential roofing?
A) All major types of shingles are available in custom shapes
B) The most common dimension for strip shingles in 12 inches by 36 inches
C) All manufactures must make strip shingles to the same dimensions
D) T-lock shingles usually use a stronger self-sealing adhesive tape than other types. correct
answers B) The most common dimension for strip shingles in 12 inches by 36 inches
Which of the following is the not part of the composition of an asphalt shingle?
A) A reinforcing mat
B) Asphalt and fillers
C) Thermoplastic layers
D) A mineral granule surfacing correct answers C) Thermoplastic layers
Which of these is the most important performance characteristic of granules on asphalt shingles?
A) To offer a wide range of textures
B) To provide a wider range of colors
C) To protect the coating grade asphalt surface
D) To allow for proper application of saturantgrade asphalt correct answers C) To protect the
coating grade asphalt surface
What does NRCA recommend when installing and asphalt shingle roof?
A) A Minimum of six nails per shingle should be used for all roofs
B) A Minimum of three nails per shingle should be used for all roofs
C) A Minimum of six nails per shingles should be used for roofs in high-wind areas
D) A Minimum of four staples per shingles should be used only in individual shingles correct
answers C) A minimum of six nails per shingles should be used for roofs in high-wind areas
Which of these materials are most likely to cause more rapid deterioration in roofing systems
with vaulted or cathedral ceilings?
A) Large-volume attic spaces with roof slopes greater than 8:12
B) Use of vapor retarder where January temperatures are 30F of less
C) Installation of a balanced ventilation system with slopes less than 8:12
D) Asphalt-based components installed over insulated, non-vented decks correct answers D)
Asphalt-based components installed over insulated, non-vented decks
Which of these is a common risk from use of nail-base insulation and its impact on steep slope
assemblies?
A) Condensation or moisture accumulation
B) Rapid heat loss due to the lack of insulation
C) Moisture damage from excessive ventilation
D) Separation of plywood or OSB layers in roof decking correct answers A) Condensation or
moisture accumulation
Which of these is most likely to need to be enhanced when installing valleys in areas prone to
regular freeze-thaw cycles and accumulations of ice and snow?
