Worksite Orientation and Site Safety Integration

Welcome to the Worksite

Your externship is where classroom knowledge becomes real-world skill. On day one — before you touch a single module, conduit, or rooftop anchor — you must complete your employer's site-safety orientation. This is not a formality. Employers are required by OSHA to inform every worker of the hazards present at their workplace, and your signature on the site-specific documents confirms you understand those hazards and the controls the company uses to manage them.

Bring your OSHA 10 card from Course 1. It shows your host employer that you already understand general industry safety principles. From that baseline, the orientation will layer on the company-specific rules: where to park, how to report an injury, who the site supervisor is, where the first-aid kit and fire extinguisher are, and how to call for emergency services at a rooftop location where the street address may differ from the actual work position.

Hazard Communication and Site Documents

Federal law requires employers to maintain Safety Data Sheets (SDS) for every hazardous chemical on site. On a PV job this commonly includes roofing adhesives, sealants, penetration-flashing compounds, and battery electrolyte if energy storage is involved. During orientation you will be shown where the SDS binder or digital library is kept and how to read a sheet — particularly sections 2 (hazard identification), 4 (first aid), 8 (exposure controls and PPE), and 15 (regulatory information).

You will also sign off on three site-specific documents:

1. Hazard Communication Plan — confirms you know what chemicals are present and how they are labeled.

2. Fall Protection Plan — describes the specific fall hazards for each roof type the company works on, the anchor systems used, inspection schedules, and rescue procedures if a worker is suspended.

3. Emergency Action Plan (EAP) — exit routes, muster points, names of first-aid-trained personnel, and how to summon emergency services.

Read every document before you sign. Ask questions. Your supervising installer expects new workers to ask questions — silence when something is unclear is a hazard in itself.

The Job-Hazard Analysis (JHA)

A Job-Hazard Analysis is a structured, written process of identifying what could go wrong during a specific task and deciding in advance how to prevent it. On a residential rooftop PV installation, you and your supervising installer complete the JHA together before work begins. The four hazard categories you must address are:

• Fall hazards — unguarded roof edges, skylights, fragile roofing materials, wet or frost-covered surfaces, and ladder access points.
• Electrical hazards — live conductors at the utility meter, the existing service panel, the inverter, and — critically — PV modules, which produce DC voltage whenever exposed to light and cannot be simply switched off. Modules in a series string can present lethal voltage even in partial shade.
• Heat hazards — dark roofing surfaces can exceed 150 °F on a summer day. Heat cramps, heat exhaustion, and heat stroke can develop quickly. Identify shade areas, water supply, and rest schedules on the JHA.
• Struck-by hazards — tools, modules, and fasteners dropped from the roof endanger ground workers. Identify the drop zone, barricade it, and note how overhead work will be communicated to the crew below.

For each hazard, record the specific mitigation on the employer's JHA form, assign responsibility, and initial the line. The JHA stays on the job site. If conditions change — a storm moves in, an unexpected live wire is discovered, a second crew arrives — stop work, update the JHA, and brief the team.

PPE Inspection and Donning

Before ascending the roof for the first time, you must inspect and correctly don every item of required PPE. Your supervising installer will verify fit before you move past the eave line. Work through this sequence:

1. Hard hat — inspect shell for cracks and dents, check suspension for fraying. Wear brim forward unless the manufacturer approves side or rear orientation. Replace after any significant impact, regardless of visible damage.

2. Safety glasses — ANSI Z87.1 rated. Check lenses for deep scratches that impair vision. Side shields required if work overhead creates eye hazard.

3. Cut-resistant gloves — correct size so you retain dexterity for module connectors; inspect for cuts or holes, especially in the palm and thumb crotch.

4. Non-conductive footwear — ANSI/ASTM-rated electrical-hazard (EH) boots with slip-resistant soles appropriate for roofing surfaces. Check that soles are free of embedded debris that could damage roofing material or reduce grip.

5. Full-body harness and lanyard — a full-body harness is required for fall arrest (a body belt alone is not acceptable for arrest, only for restraint positioning). Inspect webbing for cuts, burns, chemical staining, and distortion. Check hardware — D-rings, buckles, and snap hooks — for corrosion, cracks, and free gate operation. Don the harness: legs, chest, shoulders, then adjust all straps so the dorsal D-ring sits between the shoulder blades at the upper back. Connect the lanyard to the dorsal D-ring and to the certified anchor point (rated for the required load). Have your supervisor verify that no strap is twisted and that the fit allows only a flat hand between webbing and body.

Fall-arrest equipment that has arrested a fall must be immediately removed from service and inspected by a competent person before it is returned to use.

Passing the Orientation Check

You pass this lesson when your supervising installer signs the JHA with no uncorrected hazard omissions and confirms on the orientation checklist that you donned all PPE correctly on the first attempt with zero unresolved deficiencies. If a deficiency is found, correct it immediately — there is no penalty for the correction itself, only for ignoring it.