NRCA Metal Flashings study materials
NRCA Metal Flashings study resources

NRCA Metal Flashings study plan

NRCA Metal Flashings · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Metal flashing materials and metallurgy (copper, steel, aluminum, zinc, lead, stainless, coatings and finishes) & Dissimilar-metal contact, galvanic corrosion, electrolysis and isolation detailing

  • Build a one-page comparison table of copper, lead, zinc, stainless steel, aluminum, and coated carbon steel covering melting range, thermal expansion, typical thickness/temper, and approved substrate types, citing at least one standard or manufacturer technical bulletin per metal.

  • Explain in your own words how galvanic series position, electrolyte presence, and anode-to-cathode area ratio drive corrosion rate, then rank five common metal pairings from most to least risky.

  • Identify three isolation strategies (bituminous coating, neoprene or EPDM separator, stainless fasteners, plastic-sleeved clips) and state where each belongs in a flashing assembly.

  • List the clearance and runoff rules that keep copper or lead discharge from landing on galvanized steel or aluminum below, and note the coating-failure mechanism involved.

  • Distinguish mill-finish, anodized, Kynar/polyester-coated, and terne-coated surfaces by how each affects solderability, fastener choice, and field touch-up.

Your checkpoint

A single reference sheet (two pages maximum) with the metal comparison table, the galvanic risk ranking, and a labeled sketch of an isolated copper-to-galvanized transition showing separator, fastener, and drainage path.

Week 2

Fabrication fundamentals: shop and field layout, forming, soldering, brazing, welding, fastening and sealants

  • Describe safe layout procedure for a flashing detail: measuring, transferring dimensions to flat stock, allowing for bend deduction and material thickness, and marking bend lines.

  • Sequence the forming steps for a simple hemmed drip edge and a locked standing seam, naming the tool used at each step and the order that prevents distortion.

  • Compare soldering, brazing, and welding for copper, stainless, and coated steel, stating which joint types and thicknesses each suits and which metals must never be heat-joined.

  • Specify flux, solder alloy, and heat-control practice for a copper soldered seam, and explain why residual flux must be removed.

  • Select fasteners and sealants for three scenarios (concealed cleat, exposed lap, movement joint), justifying fastener type, spacing, and sealant compatibility with the metal.

Your checkpoint

A written fabrication procedure card for one representative flashing (for example a chimney cricket or a wall cap) listing every cut, bend, join, fastener, and sealant step in order with the tool named at each step.

Week 3

Fabrication fundamentals: shop and field layout, forming, soldering, brazing, welding, fastening and sealants & Roof penetration flashings: vent stacks, pipes, curbs, chimneys, skylights and equipment supports

  • Draft dimensioned flat-pattern layouts for a vent-stack flashing, a pipe boot with a rolled collar, and a rectangular equipment curb, showing seam locations and expansion allowance.

  • Explain how to form and join a pitch pan or curb cap so that water sheds away from the penetration and the joint stays above the water line.

  • Identify the flashing sequence for a masonry chimney: base flashing, counterflashing, cricket, and cap, and state which component is installed first and why.

  • Describe how skylight and equipment-support curbs are flashed and counterflashed, including how the curb height relates to the roof slope and snow or ponding exposure.

  • Practice one heat-joined or mechanically locked joint on scrap of the exam-relevant metal and record what failed or worked.

Your checkpoint

A shop packet of three dimensioned flat-pattern drawings (vent stack, pipe collar, rectangular curb) with bend lines, seam types, and a one-paragraph sequence note for each.

Week 4

Roof drainage flashings: gutters, downspouts, scuppers, conductors, expansion joints and overflow provisions & Base flashings, edge metal, drip edges, gravel stops and roof-to-wall transitions

  • Size a gutter and downspout for a stated roof area and rainfall intensity using the rational-method approach, and show the arithmetic.

  • Lay out gutter slope, hanger spacing, expansion allowance at end caps, and outlet placement for a run of at least 40 feet.

  • Detail a scupper and overflow (secondary drainage) provision so the overflow outlet sits above the primary inlet and discharges visibly.

  • Draw the layer order and fastening for edge metal, drip edge, gravel stop, and a roof-to-wall transition, naming which layer laps over which.

  • Explain how expansion joints and conductor (leader) joints accommodate movement without trapping water or stressing fasteners.

Your checkpoint

A drainage takeoff and detail sheet for one hypothetical roof: computed gutter and downspout sizes, hanger spacing, and three labeled section sketches (gutter with expansion joint, scupper with overflow, roof-to-wall base and counterflashing).

Week 5

Wall and through-wall flashings, counterflashings, reglets, copings and parapet terminations

  • Describe reglet cutting, insertion depth, and sealant detailing for a through-wall flashing, and state how weep provisions release water at the wall base.

  • Sequence base flashing, through-wall flashing, and counterflashing so each laps shingle-fashion and the counterflashing sheds over the base.

  • Detail coping and parapet termination, including cleat attachment, joint spacing for expansion, and how the cap sheds to both roof and exterior face.

  • Explain how concealed counterflashing is anchored in a reglet versus surface-mounted, and the trade-offs in serviceability and water resistance.

  • Identify the causes of the most common wall-flashing failures (wrong lap direction, blocked weeps, sealant-only terminations) and the corrective detail for each.

Your checkpoint

A wall-section drawing set (three details: reglet through-wall flashing, counterflashing over base, parapet coping) each annotated with lap direction, fastener type and spacing, sealant location, and weep path.

Week 6

Roof penetration flashings: vent stacks, pipes, curbs, chimneys, skylights and equipment supports & Base flashings, edge metal, drip edges, gravel stops and roof-to-wall transitions & Codes, standards, manufacturer instructions and safe work practices for metal flashing installation

  • Cross-reference the installation requirements in the applicable code or standard for flashing height above roof, counterflashing, and secondary drainage, and note where manufacturer instructions are stricter.

  • Assemble a pre-task safety checklist covering fall protection, hot-work permits for soldering and welding, ladder and edge practice, and metal-handling cuts.

  • Compare two manufacturer installation guides for the same product family and list where their fastener spacing, sealant, or clearance instructions diverge.

  • Explain how to read a manufacturer detail drawing and translate it into a field instruction the crew can follow without the drawing in hand.

  • Describe the inspection and testing steps (water test, visual lap check, fastener pull check) that verify a completed flashing before close-out.

Your checkpoint

A one-page code-and-manufacturer cross-check matrix for three flashing conditions, with columns for code requirement, manufacturer requirement, chosen field practice, and the safety control that applies.

Week 7

Metal flashing materials and metallurgy (copper, steel, aluminum, zinc, lead, stainless, coatings and finishes) & Roof drainage flashings: gutters, downspouts, scuppers, conductors, expansion joints and overflow provisions & Wall and through-wall flashings, counterflashings, reglets, copings and parapet terminations & Base flashings, edge metal, drip edges, gravel stops and roof-to-wall transitions

  • Re-derive the metal comparison and galvanic ranking from week one without notes, and correct any gaps.

  • Redo drainage sizing and expansion-joint layout from memory, then check against your week-four sheet.

  • Redraw the wall-section details from week five from memory and mark every lap and fastener.

  • Write out the edge-metal and roof-to-wall layer order and the reason each layer laps as it does.

  • Identify your three weakest subtopics from the redraw exercise and schedule targeted review for each.

Your checkpoint

A closed-book practice set of ten self-written questions spanning materials, drainage, wall flashings, and edge metal, answered and self-scored with a short note on each error.

Week 8

Dissimilar-metal contact, galvanic corrosion, electrolysis and isolation detailing & Codes, standards, manufacturer instructions and safe work practices for metal flashing installation & Fabrication fundamentals: shop and field layout, forming, soldering, brazing, welding, fastening and sealants

  • Build a final isolation-detail checklist that a field installer could carry, covering dissimilar-metal contact, fastener selection, and drainage separation.

  • Summarize the code, standard, and manufacturer-instruction hierarchy in five sentences and state what to do when they conflict.

  • Run a timed 40-question mixed practice exam and record score by domain.

  • Review every missed item, writing the correct principle rather than the answer, and confirm understanding with a fresh example.

  • Finalize a one-page exam-day summary sheet of formulas, clearances, and sequencing rules.

Your checkpoint

A timed practice-exam score report by domain plus a one-page exam-day summary sheet of formulas, clearances, lap rules, and isolation details.

Milestones

Week 2: Can state, without notes, the galvanic risk ranking of five metal pairings and the isolation method for each, and can describe the bend sequence for a hemmed drip edge.

Week 4: Scores at least 70 percent on a self-made 20-question quiz covering materials, fabrication, and drainage sizing, with correct arithmetic shown for the sizing items.

Week 6: Can draw the through-wall flashing, counterflashing, and coping details from memory with lap direction and fastener spacing labeled, and can cite the code and manufacturer requirement for flashing height and secondary drainage.

Week 8: Scores at least 80 percent overall on the timed 40-question mixed practice exam with no domain below 60 percent, and has a completed exam-day summary sheet.