RRO STUDY GUIDE QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2025-2026
What is a roof? - Answers the sheltering structure of a building that protects the interior spaces
from natural elements.
Is plywood an air barrier? - Answers Yes
Point of fixation on metal roof - Answers
How many hours to consider ponding water? - Answers 48 hours
What are the types of clay tiles? - Answers
What are types of slate? - Answers
What is APP vs SPS? - Answers
What are the heat welds requirements for thermoplastic? - Answers
Thermoplastic vs. Thermosets - Answers
Change directive vs. Change order - Answers A change order requires agreement from the
owner and other parties involved. A change directive is used to direct the contractor to perform
additional work when there is not an agreement between the owner and contractor
What is oil canning? - Answers Oil canning is defined as the perceived waviness of a metal panel
and is an inherent characteristic of light-gauge, cold-rolled flat metal products.
What are the different types of seams for metal roofing? - Answers Double lock seam, a
symmetrical seam, a one-piece snap-lock and a two-piece snap-lock
SSSMR vs. ASSMR - Answers Structural Standing Seam Metal Roof
Architectural Standing Steam Metal Roof
What does SPUF stand for? - Answers Spray in place Polyurethane Foam
What does EPDM stand for? - Answers ethylene propylene diene monomer
Test cuts for single ply roofing? - Answers
Test cuts for SPUF roofing? - Answers
What are the slope requirements 1-4 for asphalt? - Answers 1/4:12 through 3:12
Coal tar vs. Asphalt - Answers
Flood requirements for asphalt - Answers
, Fastener per shingle - Answers 6
Size of shingles - Answers 1 ft x 3 ft
Low slope vs. Steep slopes for all types - Answers
What types of SPUF are acceptable? - Answers
"Lift" = ___________ minimum and maximum for SPUF roofing - Answers
What is the minimum slope for asphalt shingles? - Answers 2:12
What is the minimum nail penetration for shingles? - Answers
Clay tile exposure - Answers
What does ASTM D3617 read? - Answers Standard practice for sampling and analysis of built
up roofing system during application
Aromatic vs. Aliphatic? - Answers
BUR test cut size - Answers 2 in diameter
Size of insulation boards - Answers 48 in x 48 in
48 in x 96 in
Asphalt per square = _________ lbs - Answers
Single ply pull test requirements - Answers
IRMA = ? - Answers Inverted Roofing Membrane Assembly
UL = ? - Answers Underwriters Laboratories
FM = ? - Answers Factory Mutual
Hydrokenetic vs. Hydrostatic - Answers Hydrostatic roofs do not even require underlayment. On
the other hand, hydrokinetic panels (also known as architectural panels) rely on gravity to shed
rainwater, and therefore can only be installed on steeply sloped roofs
LWIC deck minimum thickness - Answers 2 inches
EFVM = ? - Answers Electric Field Vector Mapping
ASCE-7
ASCE7-16 - Answers Wind speed maps and risk categories
What is a perm rating? - Answers The unit telling the mass rate of water vapor flowing through 1
What is a roof? - Answers the sheltering structure of a building that protects the interior spaces
from natural elements.
Is plywood an air barrier? - Answers Yes
Point of fixation on metal roof - Answers
How many hours to consider ponding water? - Answers 48 hours
What are the types of clay tiles? - Answers
What are types of slate? - Answers
What is APP vs SPS? - Answers
What are the heat welds requirements for thermoplastic? - Answers
Thermoplastic vs. Thermosets - Answers
Change directive vs. Change order - Answers A change order requires agreement from the
owner and other parties involved. A change directive is used to direct the contractor to perform
additional work when there is not an agreement between the owner and contractor
What is oil canning? - Answers Oil canning is defined as the perceived waviness of a metal panel
and is an inherent characteristic of light-gauge, cold-rolled flat metal products.
What are the different types of seams for metal roofing? - Answers Double lock seam, a
symmetrical seam, a one-piece snap-lock and a two-piece snap-lock
SSSMR vs. ASSMR - Answers Structural Standing Seam Metal Roof
Architectural Standing Steam Metal Roof
What does SPUF stand for? - Answers Spray in place Polyurethane Foam
What does EPDM stand for? - Answers ethylene propylene diene monomer
Test cuts for single ply roofing? - Answers
Test cuts for SPUF roofing? - Answers
What are the slope requirements 1-4 for asphalt? - Answers 1/4:12 through 3:12
Coal tar vs. Asphalt - Answers
Flood requirements for asphalt - Answers
, Fastener per shingle - Answers 6
Size of shingles - Answers 1 ft x 3 ft
Low slope vs. Steep slopes for all types - Answers
What types of SPUF are acceptable? - Answers
"Lift" = ___________ minimum and maximum for SPUF roofing - Answers
What is the minimum slope for asphalt shingles? - Answers 2:12
What is the minimum nail penetration for shingles? - Answers
Clay tile exposure - Answers
What does ASTM D3617 read? - Answers Standard practice for sampling and analysis of built
up roofing system during application
Aromatic vs. Aliphatic? - Answers
BUR test cut size - Answers 2 in diameter
Size of insulation boards - Answers 48 in x 48 in
48 in x 96 in
Asphalt per square = _________ lbs - Answers
Single ply pull test requirements - Answers
IRMA = ? - Answers Inverted Roofing Membrane Assembly
UL = ? - Answers Underwriters Laboratories
FM = ? - Answers Factory Mutual
Hydrokenetic vs. Hydrostatic - Answers Hydrostatic roofs do not even require underlayment. On
the other hand, hydrokinetic panels (also known as architectural panels) rely on gravity to shed
rainwater, and therefore can only be installed on steeply sloped roofs
LWIC deck minimum thickness - Answers 2 inches
EFVM = ? - Answers Electric Field Vector Mapping
ASCE-7
ASCE7-16 - Answers Wind speed maps and risk categories
What is a perm rating? - Answers The unit telling the mass rate of water vapor flowing through 1
