Florida Roofing Trade Knowledge Test
Prep (GCS) //TRADE & KNOWLEDGE
ROOFING EXAM NEWEST 2025 ACTUAL
EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS)
Who is responsible for requiring the wearing of appropriate personal protective
equipment?
REFERENCE: OSHA - 1926.28(a) - ✔✔ANSW✔✔..The employer
Valley flashing for metal roof shingles shall extend at least:
REFERENCE: FBC-B 2020/2017 - 1507.5.7 - ✔✔ANSW✔✔..8 inches from the
centerline each way
How many plies of coal tar built-membrane are needed to waterproof a wall when the
hydrostatic pressure is 49 feet?
REFERENCE: NRCA-2020-WATERPROOF-PG.43 & 44 - ✔✔ANSW✔✔..3
On counter flashing systems, flashing receivers should be:
REFERENCE: SMACNA-PG.4.6 - ✔✔ANSW✔✔..16 oz. copper
A roofing crew should be able to place ___ squares per day of mechanically fastened
EPDM roofing.
REFERENCE: WALKERS 31ST - PG.825 - ✔✔ANSW✔✔..35
In batten seam roofing, the recommended MAXIMUM distance between battens is:
, REFERENCE: SMACNA-(7th)-PG. 6.18 - ✔✔ANSW✔✔..20 inches
In a HVHZ, no re-cover applications shall take place over which of the following existing
materials?
REFERENCE: FBC-B 2020/2017 - 1521.16 - ✔✔ANSW✔✔..Wood shingles
It is recommended that drip edge metal for tile roof systems be fabricated from:
REFERENCE: NRCA Steep Slope (2021) PG. 226 - ✔✔ANSW✔✔..16 oz copper
A gallon of water weighs:
REFERENCE: NRCA-2020-WATERPROOFING - PG. 30 - ✔✔ANSW✔✔..62.4 lbs per
cubic foot
What is the nominal weight of 22-gage stainless steel?
REFERENCE: SMACNA-(7th) - PG. A.3 - TABLE A-4 - ✔✔ANSW✔✔..1.31 lb. /ft2
On a sloping roof penetration extend the flashing flange a minimum of:
REFERENCE: SMACNA-(7th) -PG. 8.24 - ✔✔ANSW✔✔..4 inches onto the roof
Special Kraft-faced fiberglass batts come in two thicknesses and are:
REFERENCE: RCE-PG. 350 - ✔✔ANSW✔✔..24 inches wide and 48 inches long
Per NRCA, skylight frames should overlap the curb a minimum of how many inches to
act as a counterflashing or a separate counterflashing should be installed?
REFERENCE: NRCA-METAL PANEL AND SPF - PG. 153 and PG. 165 (2016) and PG.
201 and PG. 440 (2020) - ✔✔ANSW✔✔..3 inches
Per NRCA, which of the following is not a bitumen used for built-up membrane systems
(BUR)?
REFERENCE: NRCA-2019-MEMBRANE-PG. 174 - ✔✔ANSW✔✔..Coal-tar system
According to Walker's, when performed metal siding is laid on roofs, it should have an
end lap of:
REFERENCE: WALKERS-(31st) - PG. 811 - ✔✔ANSW✔✔..3 to 6 inches depending on
the pitch of the roof.
Prep (GCS) //TRADE & KNOWLEDGE
ROOFING EXAM NEWEST 2025 ACTUAL
EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS)
Who is responsible for requiring the wearing of appropriate personal protective
equipment?
REFERENCE: OSHA - 1926.28(a) - ✔✔ANSW✔✔..The employer
Valley flashing for metal roof shingles shall extend at least:
REFERENCE: FBC-B 2020/2017 - 1507.5.7 - ✔✔ANSW✔✔..8 inches from the
centerline each way
How many plies of coal tar built-membrane are needed to waterproof a wall when the
hydrostatic pressure is 49 feet?
REFERENCE: NRCA-2020-WATERPROOF-PG.43 & 44 - ✔✔ANSW✔✔..3
On counter flashing systems, flashing receivers should be:
REFERENCE: SMACNA-PG.4.6 - ✔✔ANSW✔✔..16 oz. copper
A roofing crew should be able to place ___ squares per day of mechanically fastened
EPDM roofing.
REFERENCE: WALKERS 31ST - PG.825 - ✔✔ANSW✔✔..35
In batten seam roofing, the recommended MAXIMUM distance between battens is:
, REFERENCE: SMACNA-(7th)-PG. 6.18 - ✔✔ANSW✔✔..20 inches
In a HVHZ, no re-cover applications shall take place over which of the following existing
materials?
REFERENCE: FBC-B 2020/2017 - 1521.16 - ✔✔ANSW✔✔..Wood shingles
It is recommended that drip edge metal for tile roof systems be fabricated from:
REFERENCE: NRCA Steep Slope (2021) PG. 226 - ✔✔ANSW✔✔..16 oz copper
A gallon of water weighs:
REFERENCE: NRCA-2020-WATERPROOFING - PG. 30 - ✔✔ANSW✔✔..62.4 lbs per
cubic foot
What is the nominal weight of 22-gage stainless steel?
REFERENCE: SMACNA-(7th) - PG. A.3 - TABLE A-4 - ✔✔ANSW✔✔..1.31 lb. /ft2
On a sloping roof penetration extend the flashing flange a minimum of:
REFERENCE: SMACNA-(7th) -PG. 8.24 - ✔✔ANSW✔✔..4 inches onto the roof
Special Kraft-faced fiberglass batts come in two thicknesses and are:
REFERENCE: RCE-PG. 350 - ✔✔ANSW✔✔..24 inches wide and 48 inches long
Per NRCA, skylight frames should overlap the curb a minimum of how many inches to
act as a counterflashing or a separate counterflashing should be installed?
REFERENCE: NRCA-METAL PANEL AND SPF - PG. 153 and PG. 165 (2016) and PG.
201 and PG. 440 (2020) - ✔✔ANSW✔✔..3 inches
Per NRCA, which of the following is not a bitumen used for built-up membrane systems
(BUR)?
REFERENCE: NRCA-2019-MEMBRANE-PG. 174 - ✔✔ANSW✔✔..Coal-tar system
According to Walker's, when performed metal siding is laid on roofs, it should have an
end lap of:
REFERENCE: WALKERS-(31st) - PG. 811 - ✔✔ANSW✔✔..3 to 6 inches depending on
the pitch of the roof.
