C 39 Roofing Trade Test Actual Test 2026 |
Complete Questions and Correct Answers
(Verified Answers) | Just Released |
Newest Version
The plan area of a building is 2,600 sq ft of roofing with a design factor of 1.10.
The downspout for the gutter will drain 200 sq ft of roof area per 1 sq in of
downspout area. What should be the area for the downspout? ---------CORRECT
ANSWER-----------------14.3 sq in
You are installing a galvanized steel roof and the plans call for a built-in gutter.
Which metal should you use for the gutter? ---------CORRECT ANSWER----------------
-Stainless steel
When designing a rectangular gutter, the minimum ratio of depth to width should
be: ---------CORRECT ANSWER-----------------3 to 4
To protect the edge of the building and metal roof from rain and wind, you should
install a: ---------CORRECT ANSWER-----------------Perimeter flashing
,What should be the minimum gage of galvanized steel valley flashing? ---------
CORRECT ANSWER-----------------24 gage
How many fasteners per cleat are required when using expansion cleats for
standing seam metal roofs with continuous pans over 30' in length? ---------
CORRECT ANSWER-----------------2
Rigid insulation is to be applied over a wood roof deck. A metal or wood grid
system must be installed if the rigid insulation is: ---------CORRECT ANSWER---------
--------1 1/2" thick or greater
At what slope does a roof become a high-pitched roof? ---------CORRECT ANSWER-
----------------Over 6:12
A roof is considered to be low-pitched when its slope is: ---------CORRECT
ANSWER-----------------3:12 or less
A roof with a slope of 8:12 is considered what pitch? ---------CORRECT ANSWER-----
------------1/3 pitch
, Your crew is on the roof welding with materials containing beryllium and there is
a strong wind. According to Cal/OSHA, what must you do? ---------CORRECT
ANSWER-----------------Require crew to wear supplied-air respirators
What thickness of zinc coating is placed on steel sheets to create galvanized
sheets? ---------CORRECT ANSWER-----------------1.25 oz/sq ft
A roofing contractor discovers damage done by other trades to a newly installed
roof. What should the roofing contractor do? ---------CORRECT ANSWER--------------
---Submit a written report to the general contractor and/or the owner for any
visible damage
When layers of felt are joined by hot-mopping, the process is most similar to: ------
---CORRECT ANSWER-----------------Welding
If final surfacing is not installed, roofing felts already installed should be: ---------
CORRECT ANSWER-----------------"Glazed" and sealed at the end of each days work
The bending radius of compositional roofing materials is generally limited to: ------
---CORRECT ANSWER-----------------45 degrees
Complete Questions and Correct Answers
(Verified Answers) | Just Released |
Newest Version
The plan area of a building is 2,600 sq ft of roofing with a design factor of 1.10.
The downspout for the gutter will drain 200 sq ft of roof area per 1 sq in of
downspout area. What should be the area for the downspout? ---------CORRECT
ANSWER-----------------14.3 sq in
You are installing a galvanized steel roof and the plans call for a built-in gutter.
Which metal should you use for the gutter? ---------CORRECT ANSWER----------------
-Stainless steel
When designing a rectangular gutter, the minimum ratio of depth to width should
be: ---------CORRECT ANSWER-----------------3 to 4
To protect the edge of the building and metal roof from rain and wind, you should
install a: ---------CORRECT ANSWER-----------------Perimeter flashing
,What should be the minimum gage of galvanized steel valley flashing? ---------
CORRECT ANSWER-----------------24 gage
How many fasteners per cleat are required when using expansion cleats for
standing seam metal roofs with continuous pans over 30' in length? ---------
CORRECT ANSWER-----------------2
Rigid insulation is to be applied over a wood roof deck. A metal or wood grid
system must be installed if the rigid insulation is: ---------CORRECT ANSWER---------
--------1 1/2" thick or greater
At what slope does a roof become a high-pitched roof? ---------CORRECT ANSWER-
----------------Over 6:12
A roof is considered to be low-pitched when its slope is: ---------CORRECT
ANSWER-----------------3:12 or less
A roof with a slope of 8:12 is considered what pitch? ---------CORRECT ANSWER-----
------------1/3 pitch
, Your crew is on the roof welding with materials containing beryllium and there is
a strong wind. According to Cal/OSHA, what must you do? ---------CORRECT
ANSWER-----------------Require crew to wear supplied-air respirators
What thickness of zinc coating is placed on steel sheets to create galvanized
sheets? ---------CORRECT ANSWER-----------------1.25 oz/sq ft
A roofing contractor discovers damage done by other trades to a newly installed
roof. What should the roofing contractor do? ---------CORRECT ANSWER--------------
---Submit a written report to the general contractor and/or the owner for any
visible damage
When layers of felt are joined by hot-mopping, the process is most similar to: ------
---CORRECT ANSWER-----------------Welding
If final surfacing is not installed, roofing felts already installed should be: ---------
CORRECT ANSWER-----------------"Glazed" and sealed at the end of each days work
The bending radius of compositional roofing materials is generally limited to: ------
---CORRECT ANSWER-----------------45 degrees
