California Roofing Contractor Exam (C-39 License) Practice Exam

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• With slate roofing, the overlap from one course to the next should cover nail holes of the lower course by at least:
• A mansard roof slopes in ______ direction(s).
• What is the Mini-Mopper used for?
• What is underlayment and why is it installed?
• What are two common types of flat roofing materials for residences?
• No joints in any _______ adjacent courses in a wood shingle roof should be in direct alignment.
• Which tool is preferred for driving nails into slate roofing?
• Which roof type slopes in four directions?
• Which of the following is a dead load on a roof?
• Which statement about BUR and EPDM/TPO is accurate?
• Shakes extend beyond rake edges by approximately how much?
• A common feature of roofs with multiple plies is their classification as which type?
• What is the primary purpose of roof flashing around penetrations?
• What is the approximate area of a circular roof with a 12-foot diameter?
• It is warmer outside than inside. Warm air would come in by:
• What is flashing tape used for in roof flashing?
• Which measurement represents the minimum sidelap between adjacent wood shingle courses?
• What energy-efficiency characteristic is required for new roofs?
• Where can asphalt be used for roofing?
• How do three-tab shingles differ from architectural shingles in appearance and wind performance?
• The distance from the lower edge of a top shingle to the upper edge of the shingle two courses below is called
• On a tile roof, what size and spacing of rafters should be used?
• Prevailing wage applies to which type of projects in California roofing?
• Which safety requirement is specified by fall protection standards when working at height?
• What is the purpose of a valley in a roof and how should flashing be installed there?
• Which statement is true regarding joints across three adjacent courses?
• Which statement best describes the stop notice in project funding?
• When should a lien release ordinarily be obtained?
• What scaffolding safety practices should be followed on roofing jobs?
• Which type of roofing material cannot be used by a roofing contractor?
• What is the recommended purpose of a change order in contracting?
• Which motion best describes applying hot asphalt with a mop?
• What is a mechanic's lien and when is it used?
• Where is step flashing typically installed?
• Which statement best describes valley flashing installation?
• Which factor is commonly influenced by energy codes when selecting roofing materials?
• The overhang for the starter course of wood shingles should be:
• Shakes should extend beyond the rake edges approximately:
• What is a pay-when-paid clause?
• Roller-type felt laying machines should be:
• Why is accurate record-keeping important in a roofing business?
• Which of the following is NOT a residential roof system commonly used in California?
• How should roof penetrations (vents, pipes) be flashed?
• Which statement correctly describes the cementing weights used for built-up roofs?
• What term refers to the lower exposed edge of a wood shingle?
• With slate roofing, nail holes are usually found _______ of the length down from the top of the slate.
• Which term describes the vertical spacing between the exposed edges of consecutive shingles in the same course?
• What is the most common type of fuel used in tar kettles?
• Which term describes the horizontal overlap between shingles?
• What is the term for the distance between the exposed edges of overlapping shingles?
• The 3 inch overlap between slate courses is intended to cover nail holes of the lower course.
• A stop notice allows a project owner to withhold funds to satisfy a lien filed by whom?
• What is the function of a roof deck?
• The policy that no joints should be in direct alignment across any _______ adjacent courses applies to how many adjacent courses?
• Public works bidding typically requires which of the following?
• Improper flashing installation around roof penetrations can lead to what outcome?
• One square foot contains how many square inches?
• Why isn't plastic cement used on wood shingles?
• On a siphon hose in a kettle, what causes the check valve to jam open?
• What is the minimum underlayment for asbestos-cement shingles?
• What considerations apply to lead-based paint compliance in remodeling roofing projects?
• How do energy codes (Title 24) influence roofing installations?
• What is the recommended approach to flat roof drainage?
• Why is proper nail length and nail pattern important when installing shingles?
• Which option correctly restates the rule for alternate courses?
• If the unit measure is 8 inches and the rafter length is 7 feet, what is the rise?
• A gable roof slopes in ______ direction(s).
• What is the purpose of gutter systems in roofing?
• A gambrel roof slopes in ______ direction(s).
• What is the area of a circular roof with a 12-foot diameter?
• The minimum dimension for any venting area in the 16 sq ft requirement must be at least how many feet?
• What is the purpose of a vented attic space, and how does it relate to roof performance?
• What guidelines govern lead-safe remodeling on older homes?
• What is a lien release and when should it be obtained?
• The load that includes people and equipment on a roof is called:
• If a roof has a slope of 24:12, what is its angle to the horizontal?
• What is the final inspection in roofing projects?
• Which of the following is a live load on a roof?
• What kind of machine is used to apply felt on a steep slope?
• Which statement about private roofing projects is true?
• Which statement about drip edge placement is correct?
• The best tool for nailing slate is:
• What is wind uplift and why is proper nailing important?
• What are common temporary protective measures used on roofing job sites?
• What is the minimum weight of moisture-proof felt?
• Which statement best describes a ridge vent's effect on attic ventilation?
• What type of felt underlayment should you use for metal tiles?
• By how much should the offset joints of overlapping slate courses be at minimum?
• If a slate roof has a 4:12 slope, does it meet the minimum slope requirement?
• Felt must be able to absorb how many times its weight in asphalt?
• How many square inches are in one square foot?
• Ordinary roof coverings may be applied over foam plastic when the foam is separated from the interior of the building by plywood sheathing at least ______ thick.
• Which measurement is stated as the minimum sidelap for neighboring wood shingle courses?
• Which tool is used to measure the weather exposure on all types of shingles?
• For alternate courses, which guideline best describes the joint arrangement?
• What term describes the distance from the lower edge of a top shingle to the upper edge of the shingle two courses below?
• For alternate courses, which of the following describes how joints should relate to each other?
• What is the area of a circular roof with a 12-foot radius?
• What is a scupper and where is it found?
• The guideline for alternate courses best described by which statement?
• Which statement correctly describes joint alignment across three adjacent courses?
• What is a seal cap?
• Which of the following best describes the standard slate thickness?
• Why is attic ventilation important in a roof system?
• For roofing tile, what is the minimum underlayment requirement?
• For metal tile roofs, which underlayment option is acceptable?
• Which statement is true about the minimum sidelap between adjacent wood shingle courses?
• What is a parapet and why is it significant to roofing?
• How does wind rating influence shingle selection?
• What type of roof can NOT be recovered?
• What is the minimum underlayment for wood shingles?
• What is a ridge vent and how does it work?
• The distance that adjacent shingles overlap horizontally is called what?
• What is the minimum underlayment for asphalt shingles?
• What is the flash point of asphalt?
• What is the approximate area of a triangular roof with sides 10 ft, 20 ft, and 20 ft?
• Which statement about counterflashing is true?
• The distance from the lower edge of a top shingle to the upper edge of the next lower course is called
• What is the minimum sidelap required between adjacent wood shingle courses?
• Which tool is used by a roll-setter to secure felt bonds?
• Where asphalt is used, rock is not practical on roofs with a slope greater than:
• Which tile has different tones of red color in a single tile?
• Which roof type has the most plies?
• What is the role of the roof decking material (such as plywood or OSB) in a roof system?
• In California, when is a permit generally required for roof work?
• The effective venting area for smoke and heat venting must be at least 16 sq ft, with no dimension less than:
• The starter course for wood shakes should have an overhang of at least:
• What is the main problem if a wood shingle is nailed too high?
• Which of the following best describes the role of gutter maintenance in protecting a building?
• How does proper flashing around skylights affect roof longevity?
• The rules described pertain to which roofing material?
• What are the two main exams you must pass to get a C-39 license?
• Which statement about slate nails holes positioning is correct?
• Which state agency licenses California roofing contractors and issues the C-39 classification?
• If flashing around a roof penetration is installed incorrectly, what is the most likely consequence?
• What is the name for the distance from the lower edge of a top shingle to the upper edge of the shingle in the course immediately below it?
• On built-up roofs, cement each felt sheet with how many pounds per square of asphalt or how many pounds per square of pitch?
• What is a drip edge and where should it be installed?
• Describe a typical contract close-out process for a roofing project.
• The term for air entering a building when outdoor air is warmer?
• Which starter course overhang is specified for asphalt shingles?
• For roof penetrations, which combination best ensures a watertight seal when flashing is installed?
• What is the purpose of a payment bond on a public works project?
• Which phrase best restates the rule for alternate courses?
• Which device is used to dispense asphalt on a roofing job?
• When installing a ring-clamp drain on an insulated roof, how do you cut the insulation?
• What does a roll-setter use to ensure a tight bond of the felt?
• A drip edge is applied in which positions?
• Which of the following is NOT a recommended ladder safety practice when working on a roof?
• Standard roofing slate is _______ thick.
• What is the purpose of using the correct nail length and nail pattern when installing shingles?
• What is the function of an ice and water shield?
• What is a common safety or compliance benefit of maintaining detailed project records for roofing work?
• What is the function of a downspout in a roof drainage system?
• In cold climates, what is the role of roof underlayment?
• The starter course for asphalt shingles should have an overhang of:
• How much hot asphalt should you have on a mop?
• The restriction on joint alignment primarily applies to which group size of adjacent courses?
• Which roofing type requires no underlayment?
• In terms of energy-efficiency, new roof installations must be:
• The type of roof to be installed is determined by:
• How do dimensional shingles differ from asphalt shingles?
• What is loss prevention in roofing projects?
• What is the area of a triangular roof with sides 10 feet, 20 feet, and 20 feet?
• Which two insurances should a roofing contractor carry for employees?
• What is a chimney cricket and its purpose?
• What is warranty transfer and why is it important for resale?
• A shed roof slopes in ______ direction(s)?
• Which safety standard is generally associated with roofing work under Cal/OSHA?
• What California document allows a project owner to withhold funds to satisfy a subcontractor lien?
• The fixed components such as membranes that contribute to the weight of the roof are called:
• The primary determinant of what roof to install is the roof's:
• What distinguishes private projects from public works in California roofing?
• Which statement about flashing tape is accurate?
• Which of the following is NOT a residential roof system commonly used in California?
• Which way is the ridge applied?
• Which statement best describes retention in a construction contract?
• When sealing ridges for clay tile, which method is appropriate?
• What is the minimum slope for slate roofs?
• In the contract close-out process, what is the purpose of obtaining lien releases?
• What is a retention in a construction contract?
• Which material classification is not permitted for use by a contractor?
• What is the approximate area of a circular roof with a 12-foot radius?
• The end of flex-pipe for hot asphalt must extend which distance relative to the wall?
• The insulation cutting requirement for a ring-clamp drain specifies tapering the insulation back by at least:
• Which characteristic describes variegated tile?
• What is the proper way to seal the ridge when working with clay tile?
• If flex-pipe (flex-hose) is used for hot asphalt, where must the end extend?
• A hip roof slopes in ______ direction(s).
• When starting a new roof, what would you do first?
• How many feet are in 120 inches?
• Distinguish step flashing from counterflashing.
• Applying hot asphalt with a mop should be done by which motion?
• Why do the horizontal and vertical chalk lines NOT have to be perfectly straight when installing mission tile?
• What is the minimum underlayment for wood shakes?