C-30 ROOFING TRADE PRACTICE TEST 5
If there are two layers of no. 15 felt under asphalt shingles, the slope of the roof must be
less than: - Answer -4:12
Snap the vertical layout line for tile: - Answer -Perpendicular to the horizontal chalk
lines
How much does a roll of APP modified bitumen weigh? - Answer -100-120 lb
When using a roof jack, how far should the top of the jack reach under the shingle? -
Answer -5"
What is the correct exposure for typical hip tiles? - Answer -14"
When laying tile to a hip, the hip nailing board should be set back at least _______ so
the tile can be set around the corner. - Answer -10"
End shingles in an open valley are set in _______ of cement: - Answer -3"
Mechanical fasteners and asphalt cementing must be used to attach the first ply of a
roof membrane to: - Answer -Steel decks
What type of valley flashing should you use with steel shingles? - Answer -Galvanized
metal
Which of the following is always true about roofing nails? - Answer -They should be
designated specifically for roofing
What are normally doubled at all eaves for steep roofing applications? - Answer -
Shingles
Why do you trim, cut, and fold back corners of felt? - Answer -So a nail driven through
them will hold better
Roofing materials should be installed when? - Answer -Weather is warm
What type of below-grade waterproofing panel expands when it gets wet? - Answer -
Bentonite/clay panel
If you install lightweight insulating concrete over a structural deck, you must vent the
concrete: - Answer -To allow for additional drying of concrete and to prevent the
buildup of water-vapor pressure
What regulates the heat in a LP kettle? - Answer -Thermostat
, The best way to tear off a gravel roof is: - Answer -Top to bottom
What is the melting point of type II flat asphalt? - Answer -158*-176* F
For wood shingles, the minimum distance from the middle of the valley to the edge is: -
Answer -8"
For wood shakes, the minimum distance from the middle of the valley to the edge is: -
Answer -11"
How much is in a roll of 90-pound cap? - Answer -One square
What kind of fasteners do you use with shakes? - Answer -Zinc coated or aluminum
nails
What kind of fasteners would you NOT use with shakes? - Answer -Steel wire
What is the name of the framing that supports the dead load? - Answer -Rafters
If you discover that plans are 6" off, whom should you contact? - Answer -The architect
or engineer
You show up to a job and notice that the roof deck is substandard. You should: -
Answer -Notify the general contractor
A protective coating over polyfoam shoukld be installed: - Answer -As soon as possible
A sample cut is made in a heavy built-up roof to: - Answer -Check the average weight
of interply bitumen moppings
Of the following which would NOT cause a vent to leak? - Answer -Too wide a vent cap
is used
Adhesion for roll roofing should be: - Answer -Cold
For a two-square flat roof, what is the maximum live load per square foot? - Answer -20
psf
What constitutes a fire-retardant roof? - Answer -Class A, B, or C
Which built-up roof is most appropriate for a 3/12 roof? - Answer -Shiplapped
If you are re-roofing with shakes over asphalt shingles, what is it that you would NOT
do? - Answer -Use 15-lb felt
If there are two layers of no. 15 felt under asphalt shingles, the slope of the roof must be
less than: - Answer -4:12
Snap the vertical layout line for tile: - Answer -Perpendicular to the horizontal chalk
lines
How much does a roll of APP modified bitumen weigh? - Answer -100-120 lb
When using a roof jack, how far should the top of the jack reach under the shingle? -
Answer -5"
What is the correct exposure for typical hip tiles? - Answer -14"
When laying tile to a hip, the hip nailing board should be set back at least _______ so
the tile can be set around the corner. - Answer -10"
End shingles in an open valley are set in _______ of cement: - Answer -3"
Mechanical fasteners and asphalt cementing must be used to attach the first ply of a
roof membrane to: - Answer -Steel decks
What type of valley flashing should you use with steel shingles? - Answer -Galvanized
metal
Which of the following is always true about roofing nails? - Answer -They should be
designated specifically for roofing
What are normally doubled at all eaves for steep roofing applications? - Answer -
Shingles
Why do you trim, cut, and fold back corners of felt? - Answer -So a nail driven through
them will hold better
Roofing materials should be installed when? - Answer -Weather is warm
What type of below-grade waterproofing panel expands when it gets wet? - Answer -
Bentonite/clay panel
If you install lightweight insulating concrete over a structural deck, you must vent the
concrete: - Answer -To allow for additional drying of concrete and to prevent the
buildup of water-vapor pressure
What regulates the heat in a LP kettle? - Answer -Thermostat
, The best way to tear off a gravel roof is: - Answer -Top to bottom
What is the melting point of type II flat asphalt? - Answer -158*-176* F
For wood shingles, the minimum distance from the middle of the valley to the edge is: -
Answer -8"
For wood shakes, the minimum distance from the middle of the valley to the edge is: -
Answer -11"
How much is in a roll of 90-pound cap? - Answer -One square
What kind of fasteners do you use with shakes? - Answer -Zinc coated or aluminum
nails
What kind of fasteners would you NOT use with shakes? - Answer -Steel wire
What is the name of the framing that supports the dead load? - Answer -Rafters
If you discover that plans are 6" off, whom should you contact? - Answer -The architect
or engineer
You show up to a job and notice that the roof deck is substandard. You should: -
Answer -Notify the general contractor
A protective coating over polyfoam shoukld be installed: - Answer -As soon as possible
A sample cut is made in a heavy built-up roof to: - Answer -Check the average weight
of interply bitumen moppings
Of the following which would NOT cause a vent to leak? - Answer -Too wide a vent cap
is used
Adhesion for roll roofing should be: - Answer -Cold
For a two-square flat roof, what is the maximum live load per square foot? - Answer -20
psf
What constitutes a fire-retardant roof? - Answer -Class A, B, or C
Which built-up roof is most appropriate for a 3/12 roof? - Answer -Shiplapped
If you are re-roofing with shakes over asphalt shingles, what is it that you would NOT
do? - Answer -Use 15-lb felt
