AZ Roofing Contractor study guide
AZ Roofing Contractor · Work through your exam, one topic at a time.
The Arizona Roofing Contractor license is a classification issued by the Arizona Registrar of Contractors (ROC) that authorizes a business to contract for roofing work in the state. It is written for working roofing professionals - installers, foremen, estimators, and small-business owners - who are moving from performing the trade to contracting for it, and who must demonstrate that they can run a roofing business competently as well as install roofs correctly. The AZ Roofing Contractor study guide has 9 sections and about 2,977 words.
01Roofing Materials, Components, and System Selection
System selection starts with slope, because slope decides how fast water leaves the roof. Roofs at 3:12 or steeper are steep-slope; 2:12 or flatter are low-slope membrane roofs.
321 words, about 2 min02Roof Decking, Substrate Preparation, and Underlayment
Decking carries loads and holds fasteners, so it must be sound, dry, flat, and thick enough for the rafter spacing. Typical minimum panel thickness is 3/8 in.
341 words, about 2 min03Steep-Slope Roofing Installation (Shingle, Tile, Metal, Slate, Wood)
Start with a starter course at eaves and rakes so wind cannot lift tab edges. Set exposure from the shingle: a standard three-tab is 12 in.
347 words, about 2 min04Low-Slope and Built-Up Roofing Systems (Mod-Bit, EPDM, TPO, PVC, Foam)
Built-up roofing (BUR) is layers of felt or ply sheet set in hot or cold asphalt; four plies means four reinforcing layers plus surfacing. Modified bitumen comes in torch-applied, self-adhered, and cold-adhesive forms, usually as a base sheet plus a granulated cap sheet with staggered side and end laps.
327 words, about 2 min05Flashing, Penetrations, and Waterproofing Details
Base flashing turns up at least 8 in. above the roof surface against a wall or curb, and counterflashing laps over it so water cannot get behind.
340 words, about 2 min06Roof Drainage, Insulation, and Ventilation
Low-slope roofs need at least 1/4 in. per foot of slope to drains, scuppers, or gutters, with saddles between drains and crickets behind large penetrations so water cannot pond.
325 words, about 2 min07Roof Inspection, Repair, and Maintenance
A systematic inspection starts at the ground with a roof plan sketch, then moves to eaves, valleys, penetrations, and ridges. Look for granule loss and bare spots, curling, cupping, clawing, fishmouths, ridging, and blisters.
312 words, about 2 min08Estimating, Plan Reading, and Project Planning
Start with the roof plan, then check slope notations, ridge and valley lines, sections, details, and general notes. Sections reveal insulation thickness and flashing heights that the plan hides; details show the flashing sequence.
333 words, about 2 min09Codes, Standards, and Jobsite Safety Compliance
Roofing falls under the residential code (IRC Chapter 9) or the commercial code (IBC Chapter 15), plus referenced standards: ASTM specifications for shingles, underlayment, and modified bitumen; UL classifications for fire, wind, and impact; and manufacturer installation instructions, which are enforceable when referenced. Key code items include minimum slope per product, underlayment requirements, ice barrier where required, flashing heights, attic ventilation, and fastening schedules.
331 words, about 2 min