JACKLINE
C-39 Roofing Trade Practice Test 1 With Questions And 100% CORRECT ANSWERS
One- inch solid cap-head nails or
Composition flashing (base flashing) should be
fastened with:
Nails driven theough tin disks
Pitch pockets or pitch boxes: Are not recommended because they require extensive maintenance
Reinforced concrete can be used as a structural Some moisture will remain in concrete decks even after the surface is dry
deck. Which of the following is a correct
statement?
Roofing insulation and membranes must be A vapor retarder or
protected from latent moisture in concrete
decks. In northern climates, this is usually A venting sheet
accomplished with:
Steel decks should be at least _____ or heavier. 22g
Insulation applied to steel roof decks before the In two separate layers where insulation thickness permits
roof membrane is installed should be applied:
C-39 Roofing Trade Practice Test 1
1/8
, The top flanges of a steel roof deck should be Perpendicular to the roof slope
installed:
The maximum deflection allowed for a steel deck 1/4" per 100 feet
is:
If the steel decks must be spot-welded to 1/2 inches ... 12 inches
structural steel, puddle welds ______ or larger in
diameter are recommended. They should be
made on washers and spaced at least ______ on
center.
If thermosetting insulation is used over structural 18 to 22 pounds per cubic foot
decks, the density should be:
The correct density for thermosetting insulation Compacting
is accomplished by:
Thermosetting insulation is compacted in two 6 inches
layers if the total thickness is greater than:
Install base-ply vapor barrier and
Thermosetting insulative fills must be protected
from latent moisture in roof decks. Which of the Install wood nailers at all perimeters and
following procedures is recommended?
Install wood nailers at all roof projections
What type of roof is recommended over Aggregate
thermosetting insulative fills
A span rating of _____ means that a plywood 32/16
panel may be used for roof decking over
supports spaced 32 inches o.c. or for sub
flooring over supports spaced 16 inches o.c.
On plywood decks not covered with insulation, a Attached with annular-threaded nails
base ply should be _____ to serve as as the base
ply of the roof membrane.
The choice of membrane type for a roof is Geographical location and
frequently determined by:
C-39 Roofing Trade Practice Test 1
Climate
2/8
C-39 Roofing Trade Practice Test 1 With Questions And 100% CORRECT ANSWERS
One- inch solid cap-head nails or
Composition flashing (base flashing) should be
fastened with:
Nails driven theough tin disks
Pitch pockets or pitch boxes: Are not recommended because they require extensive maintenance
Reinforced concrete can be used as a structural Some moisture will remain in concrete decks even after the surface is dry
deck. Which of the following is a correct
statement?
Roofing insulation and membranes must be A vapor retarder or
protected from latent moisture in concrete
decks. In northern climates, this is usually A venting sheet
accomplished with:
Steel decks should be at least _____ or heavier. 22g
Insulation applied to steel roof decks before the In two separate layers where insulation thickness permits
roof membrane is installed should be applied:
C-39 Roofing Trade Practice Test 1
1/8
, The top flanges of a steel roof deck should be Perpendicular to the roof slope
installed:
The maximum deflection allowed for a steel deck 1/4" per 100 feet
is:
If the steel decks must be spot-welded to 1/2 inches ... 12 inches
structural steel, puddle welds ______ or larger in
diameter are recommended. They should be
made on washers and spaced at least ______ on
center.
If thermosetting insulation is used over structural 18 to 22 pounds per cubic foot
decks, the density should be:
The correct density for thermosetting insulation Compacting
is accomplished by:
Thermosetting insulation is compacted in two 6 inches
layers if the total thickness is greater than:
Install base-ply vapor barrier and
Thermosetting insulative fills must be protected
from latent moisture in roof decks. Which of the Install wood nailers at all perimeters and
following procedures is recommended?
Install wood nailers at all roof projections
What type of roof is recommended over Aggregate
thermosetting insulative fills
A span rating of _____ means that a plywood 32/16
panel may be used for roof decking over
supports spaced 32 inches o.c. or for sub
flooring over supports spaced 16 inches o.c.
On plywood decks not covered with insulation, a Attached with annular-threaded nails
base ply should be _____ to serve as as the base
ply of the roof membrane.
The choice of membrane type for a roof is Geographical location and
frequently determined by:
C-39 Roofing Trade Practice Test 1
Climate
2/8
