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C39
–
Roofing Contractor
A roofing contractor
installs products and repairs surfaces that seal, waterproof and
weatherproof structures. This work is performed to prevent water or its
derivatives, compounds or solids from penetrating such protection and
gaining access to material or space beyond. In the course of this work,
the contractor examines and/or prepares surfaces and uses the following
material: asphaltum, pitch, tar, felt, glass fabric, urethane foam,
metal roofing systems, flax, shakes, shingles, roof tile, slate or any
other roofing, waterproofing, weatherproofing or membrane material(s)
or a combination thereof.
The Roofing (C-39)
Examination is divided into five major sections. These sections are:
1.
Roofing Job Evaluation (30%)
Roof-covering
selection
Roofing
plans and specifications
Roofing
components, materials & measurements
Roofing
calculations
2. Job
Site and Deck Preparation (16%)
Roofing
preparation management
Roof
removals
Deck
corrections
3.
Low-Slope Roof Installations (16%)
Equipment,
set-up, maintenance & procedures
Deck
preparations and insulation
Built-up
applications
Single-ply
and fluid applied applications
4.
Steep-Slope Roof Installations (24%)
Metals,
penetrations, ventilation and insulation
Composition
shingle coverings
Tile
coverings
Wood
and synthetic shake installations
Metal
panel installations
5. Roof
Installation Safety (14%)
Cal/OSHA
administrative requirements
Fall
protection and roof safety
Tool,
equipment and material safety
*Percentages
are approximate*
Sample
Questions
The following
questions are typical of the types of items that are on the
examination. The correct answer is highlighted.
1. How
many inches must roof valley flashing overlap?
1-1/2”
2”
3”
4”
2. What
is the purpose of cant strips?
To protect edge metal
To secure steel fasteners
To eliminate sharp angles
To apply cold adhesives
3. If
a flat rectangular roof measures 16’ x 31’, how
many squares of roof covering is required?
5
15
25
50
*All
questions are written and reviewed by licensed contractors who are
actively working in the field*
Resources
Cal/OSHA State of
California Construction Safety Orders.
