Objective. Students conduct a complete, unsupervised (but observed) roof inspection of the program's practice structure, applying all prior lesson skills to produce a finished roof-section report narrative and a completed inspection field form that meets InterNACHI and ASHI standards of practice requirements.
This lesson, its worked examples and its practice questions has not yet been verified by a credentialed professional in the field or by a certification or approval body. It is a study draft and may contain errors. Do not use it as instructions for work on a job site or on live equipment. Always follow your instructor, your supervising professional, and current official references and regulations.
VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.
This lesson is your capstone field exercise for the Roofing Systems Inspection course. You will perform a complete roof inspection without assistance, produce a professional report narrative, and defend your findings in a brief oral examination. Everything you have practiced — safety setup, systematic observation, defect identification, documentation, and limitation disclosure — must come together in a single, continuous performance.
Both InterNACHI and ASHI Standards of Practice require that a home inspector evaluate the roof as a defined system: materials, structure visible from the surface, flashings, penetrations, drainage components, and ventilation terminations. Real clients rely on that report to make decisions involving thousands of dollars. Practicing under observed but unsupervised conditions trains you to perform at the same level whether an instructor is watching or not.
Before you touch a ladder, complete every item on the safety checklist. This is not optional; a critical safety omission stops the exercise.
PPE selection. Choose slip-resistant footwear, a hard hat where overhead hazards exist at ground level, safety glasses, and work gloves appropriate for roofing surfaces. Do not select equipment you have not been trained to use.
Ladder inspection. Inspect the ladder for cracked rails, missing or damaged rungs, broken feet, and a functioning locking spreader bar (stepladder) or functional rope-and-pulley (extension ladder). Tag-out any defective ladder and select another. Set extension ladders at the correct angle — approximately one foot out for every four feet of height — and secure or have a second person foot the ladder.
Harness and fall protection. Inspect the harness for frayed webbing, damaged buckles, and a serviceable dorsal D-ring. Inspect the self-retracting lifeline or lanyard for cuts, corrosion, and proper gate function on snap hooks. Anchor only to rated anchor points. Do not improvise anchors.
Verbal hazard assessment. Before ascending, state to the observing instructor: roof pitch and estimated slope, surface material and any wet, mossy, or icy conditions observed from the ground, the location of skylights or other fall-through hazards, electrical service-entrance clearance, and your planned access and egress route. This mirrors the professional practice of documenting hazards before beginning work.
Work in a consistent sequence so nothing is missed and so your field form reflects the actual order of observation.
1. Ground observation (all four elevations). Walk the perimeter before ascending. Note overall roof geometry (gable, hip, shed, or combination), any visible sagging ridgeline or rafter sag, missing or displaced material, chimney condition, and gutter and downspout alignment.
2. Roof surface by elevation. Start at the lowest accessible elevation and work upward to the ridge. Cover: roofing material type and estimated age or condition, fastener back-out or exposed fasteners, granule loss or blistering (asphalt shingles), cracked or slipped material (tile or slate), cupping, curling, or clawing, surface debris that masks defects, and any active or prior water-entry evidence such as staining or moss.
3. Flashings. Inspect step flashings at wall-to-roof junctions, counter flashings, valley flashings, and pipe boot/collar flashings around penetrations. Note separation, corrosion, improper lap, and missing sealant or deteriorated caulk.
4. Penetrations. Examine every pipe, vent, exhaust termination, and skylight curb that penetrates the roof plane. Confirm that vent terminations are the correct height above the surface and that exhaust fans terminate outside the building envelope.
5. Drainage. Inspect gutters for proper slope, secure attachment, absence of holes or separated joints, and downspout discharge away from foundation. Note ice-dam evidence if applicable.
6. Ventilation terminations. Confirm ridge vents, box vents, or power ventilators are present, unobstructed, and intact. These affect attic temperature and moisture balance.
Record every observation on the standardized field form as you go. Take annotated photos — one wide-angle establishing shot and one close-up — for every defect. Note the location (north slope, east valley) on both the form and the photo file name.
Convert your field notes into a typed roof-section narrative using the program template. Follow these rules:
During the five-minute Q&A, the instructor will ask you to justify two specific findings and explain two limitations you noted. This tests whether you understand your own report. If your verbal explanation contradicts your written form, that is a documentation error — correct your reasoning, not your form, and be prepared to explain the discrepancy.
Any critical safety failure — ascending without harness when required, skipping ladder inspection, or missing a planted critical safety defect on the field form — results in an automatic repeat of the exercise. Missing 20% or more of planted defects, using incorrect terminology throughout the narrative, or omitting required limitation disclaimers also requires a repeat. Safety and accuracy are non-negotiable in this trade.
Answer each question, then check it. Nothing is recorded; this is your own practice.
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