12 Aug Roof Work – JSA

Roof Work Job Safety Analysis (JSA)

Job / Task

Accessing and performing construction, maintenance, inspection, repair, installation, or material-handling activities on roofs where employees may be exposed to falls from roof edges, openings, skylights, ladders, changes in elevation, steep or low-slope surfaces, or fragile roofing materials.

Purpose

This Job Safety Analysis (JSA), also known as a Job Hazard Analysis (JHA), identifies hazards associated with roof work and establishes controls to prevent falls, falling-object incidents, ladder-related injuries, slips and trips, structural failure, and injuries associated with adverse weather, unsafe access, and improper fall-protection use.

Personnel Qualifications

Employees performing roof work shall be trained to recognize fall hazards and to properly use the fall-protection systems, access equipment, tools, and work practices required for the task. Employees using personal fall arrest systems shall understand equipment inspection, anchorage, connection, fall clearance, swing-fall hazards, and rescue procedures.

Employees shall:

• Recognize roof edges, openings, skylights, fragile surfaces, steep slopes, and other fall hazards.
• Use required guardrails, personal fall arrest systems, restraint systems, warning-line systems, safety-monitoring systems, or other approved controls as applicable.
• Inspect fall-protection equipment before each use.
• Use only approved anchorages and compatible fall-protection components.
• Maintain required fall protection while accessing and working on the roof.
• Use safe ladder, stairway, scaffold, or lift access.
• Keep roof surfaces and access paths free of unnecessary trip hazards.
• Control tools and materials to prevent falling objects.
• Recognize weather conditions that make roof work unsafe.
• Stop work when fall protection, roof integrity, access, weather, or rescue provisions are inadequate.

Required PPE

PPE shall be selected based on the roof work, fall exposure, and surrounding hazards and may include:

• Hard hat.
• Safety glasses with side protection.
• Work gloves appropriate to the task.
• Slip-resistant safety footwear suitable for the roof surface.
• High-visibility apparel where traffic or mobile-equipment exposure exists.
• Full-body harness and compatible lanyard, self-retracting lifeline, lifeline, rope grab, or other connecting device where required.
• Hearing protection where noise exposure requires it.
• Additional task-specific PPE identified by the hazard assessment.

JSA – Job Steps, Hazards, and Controls

Step 1 – Plan the Roof Work

Potential Hazards

• Fall from roof edge.
• Unrecognized openings or fragile surfaces.
• Falling objects.

Required Controls

• Identify the roof type, slope, elevation, access method, work area, and tasks before work begins.
• Identify roof edges, skylights, openings, holes, changes in elevation, fragile surfaces, and leading edges.
• Determine the required fall-protection system for each exposure.
• Evaluate conditions below the work area and establish falling-object controls.
• Establish a rescue method before employees are exposed to fall hazards requiring personal fall arrest.

Step 2 – Evaluate Roof Condition and Structural Integrity

Potential Hazards

• Roof collapse.
• Fall through deteriorated surface.
• Unstable footing.

Required Controls

• Determine that the roof and walking/working surfaces can safely support employees, tools, equipment, and materials.
• Identify deteriorated decking, damaged roofing, soft spots, corrosion, water damage, or other questionable areas.
• Treat unknown or questionable surfaces as unsafe until evaluated.
• Mark, guard, or restrict access to fragile or damaged areas.
• Do not place concentrated loads on surfaces not verified to support them.

Step 3 – Inspect the Access Route

Potential Hazards

• Fall while accessing roof.
• Trips.
• Unsafe transition.

Required Controls

• Provide a safe means of access such as a ladder, stairway, scaffold, or aerial lift.
• Keep access routes free of debris, cords, hoses, and stored materials.
• Inspect access equipment before use.
• Provide safe transition from the access system to the roof.
• Maintain required fall protection during transitions.

Step 4 – Set Up and Use Ladders

Potential Hazards

• Ladder fall.
• Ladder movement.
• Overreaching.

Required Controls

• Select the proper ladder type and length.
• Inspect the ladder before use and remove defective ladders from service.
• Set the ladder on a stable, level surface and secure it as required.
• Where used for access to an upper landing, extend the ladder above the landing as required or provide an equivalent secure grasping device.
• Maintain three points of contact while climbing and keep hands free for climbing.

Step 5 – Inspect Fall-Protection Equipment

Potential Hazards

• Equipment failure.
• Improper connection.

Required Controls

• Inspect harnesses, lanyards, self-retracting lifelines, rope grabs, lifelines, connectors, and anchorage components before each use.
• Check webbing, stitching, D-rings, hooks, buckles, locking mechanisms, and labels.
• Remove damaged, contaminated, altered, or questionable equipment from service.
• Verify all components are compatible.
• Follow manufacturer inspection and use instructions.

Step 6 – Select and Verify Anchorage

Potential Hazards

• Anchorage failure.
• Excessive free fall.
• Swing fall.

Required Controls

• Use anchorages designed, installed, and approved for the fall-protection system.
• Position anchorage to minimize free-fall distance and swing-fall exposure.
• Do not connect to vents, piping, conduit, guardrails, roof equipment, or other components unless specifically approved as anchorages.
• Verify anchorage location provides adequate fall clearance.
• Use engineered horizontal lifelines or other systems only as designed and installed.

Step 7 – Don and Connect Personal Fall Protection

Potential Hazards

• Improper harness fit.
• Fall during connection.
• Incorrect attachment.

Required Controls

• Inspect and properly adjust the full-body harness before use.
• Connect the fall-protection device to the designated harness attachment point.
• Connect only to approved anchorage systems.
• Verify hooks and carabiners are fully closed and locked.
• Maintain required connection whenever exposed to the fall hazard.

Step 8 – Evaluate Fall Clearance and Swing Fall

Potential Hazards

• Contact with lower level.
• Impact with structure.

Required Controls

• Calculate or verify required fall clearance before using a personal fall arrest system.
• Consider connecting-device length, deceleration distance, harness stretch, employee height, anchorage location, and safety margin.
• Keep anchorage as directly above the employee as practical.
• Avoid working far to the side of an anchorage where a swing fall could occur.
• Use restraint or another protective method when adequate arrest clearance is unavailable.

Step 9 – Protect Roof Edges

Potential Hazards

• Fall from unprotected edge.

Required Controls

• Install guardrails or other passive fall protection where feasible.
• Use personal fall protection or other approved systems where required.
• Maintain awareness of roof edges while carrying materials or working backward.
• Keep trip hazards away from exposed edges.
• Do not remove edge protection unless alternate protection is established.

Step 10 – Protect Roof Openings and Holes

Potential Hazards

• Fall through opening.
• Dropped materials.

Required Controls

• Guard or cover roof openings and holes as required.
• Secure covers against accidental displacement.
• Ensure covers are capable of supporting anticipated loads.
• Mark or identify covers where required.
• Do not remove covers until alternate fall protection is in place.

Step 11 – Work Near Skylights

Potential Hazards

• Fall through skylight.

Required Controls

• Treat skylights as fall hazards unless they are protected or verified to meet applicable load and guarding requirements.
• Use guardrails, screens, covers, personal fall protection, or other approved controls.
• Do not sit, stand, kneel, or place materials on skylights.
• Clearly identify skylight locations when visibility is limited.
• Keep access paths away from unprotected skylights whenever practical.

Step 12 – Work on Low-Slope Roofs

Potential Hazards

• Fall from roof edge.
• Loss of awareness of edge.

Required Controls

• Use fall-protection systems permitted for the specific roofing operation and conditions.
• Install warning lines at required locations when warning-line systems are used.
• Keep mechanical equipment within areas permitted by the applicable fall-protection arrangement.
• Use guardrails, safety nets, personal fall arrest, restraint, or other required systems where applicable.
• Do not rely on a warning line alone where additional protection is required.

Step 13 – Work on Steep Roofs

Potential Hazards

• Sliding or falling from roof.
• Loss of footing.

Required Controls

• Use required fall protection for steep-roof work.
• Wear footwear that provides suitable traction for the roof surface.
• Maintain secure footing and avoid sudden movements.
• Use roof brackets, crawling boards, or other equipment only when properly installed and applicable to the work.
• Keep materials secured against sliding.

Step 14 – Work Near Fragile Roofing Materials

Potential Hazards

• Fall through roof.
• Structural failure.

Required Controls

• Identify translucent panels, deteriorated decking, brittle roofing, and other fragile surfaces.
• Do not step on or place loads on fragile surfaces.
• Use covers, guardrails, platforms, crawling boards, or personal fall protection as appropriate.
• Establish clearly defined safe travel paths.
• Restrict access to fragile areas.

Step 15 – Move Across the Roof

Potential Hazards

• Trip.
• Slip.
• Loss of fall protection.

Required Controls

• Use designated travel paths where established.
• Maintain continuous fall protection where required.
• Manage lanyards and lifelines to prevent tripping, snagging, or entanglement.
• Walk carefully and avoid stepping backward toward roof edges.
• Keep travel paths clear of loose materials, cords, hoses, and debris.

Step 16 – Handle Tools and Materials

Potential Hazards

• Falling objects.
• Loss of balance.
• Overexertion.

Required Controls

• Use hoists, ropes, lifts, or other methods to move heavy or awkward materials to the roof.
• Keep tools and materials away from roof edges and openings.
• Secure lightweight materials against wind.
• Use tool tethering or other falling-object controls where appropriate.
• Do not carry loads that interfere with safe climbing, balance, or visibility.

Step 17 – Protect Personnel Below

Potential Hazards

• Struck-by falling tools or materials.

Required Controls

• Barricade or control access below roof work where necessary.
• Use toe boards, screens, debris nets, tool tethering, or other controls as appropriate.
• Do not throw tools, debris, or materials from the roof.
• Communicate overhead work to affected personnel.
• Require head protection in designated exposure areas.

Step 18 – Maintain Roof Housekeeping

Potential Hazards

• Slips.
• Trips.
• Materials blown from roof.

Required Controls

• Remove scrap, packaging, fasteners, cords, hoses, and unnecessary materials regularly.
• Clean spills and slippery substances promptly.
• Secure materials that could roll, slide, or become airborne.
• Keep access paths and fall-protection equipment free of obstructions.
• Do not allow debris to accumulate near roof edges or openings.

Step 19 – Work Around Roof-Mounted Equipment

Potential Hazards

• Trips.
• Electrical or mechanical hazards.
• Restricted clearance.

Required Controls

• Identify HVAC units, vents, piping, electrical equipment, antennas, and other roof-mounted systems.
• Maintain required clearance from energized equipment.
• Do not use roof equipment as fall-protection anchorage unless specifically designed and approved.
• Keep access and service clearances unobstructed.
• Coordinate shutdown or energy-control requirements where work affects equipment.

Step 20 – Monitor Weather Conditions

Potential Hazards

• Slip.
• Wind-related fall.
• Lightning.
• Heat or cold stress.

Required Controls

• Monitor wind, rain, snow, ice, lightning, temperature, and changing weather conditions.
• Suspend roof work during lightning, high winds, or other conditions that make work unsafe.
• Do not work on surfaces made dangerously slippery by rain, frost, ice, snow, or other conditions until controlled.
• Secure loose materials before adverse weather.
• Consider environmental exposure and provide appropriate heat- or cold-stress controls.

Step 21 – Respond to a Fall or Fall-Arrest Event

Potential Hazards

• Suspension trauma.
• Delayed rescue.
• Secondary fall.

Required Controls

• Immediately initiate the established rescue plan.
• Call emergency assistance as appropriate.
• Do not allow untrained employees to attempt improvised rescue.
• Protect rescuers from fall hazards during rescue.
• Provide prompt medical evaluation after a fall-arrest event.

Step 22 – Remove Impacted Fall-Protection Equipment

Potential Hazards

• Reuse of compromised equipment.

Required Controls

• Immediately remove from service equipment subjected to fall-arrest impact loading.
• Tag or segregate the equipment to prevent reuse.
• Follow manufacturer requirements for inspection, repair, or disposal.
• Do not return equipment to service unless specifically approved.
• Document equipment disposition as required.

Step 23 – Complete Roof Work and Demobilize

Potential Hazards

• Fall during cleanup.
• Dropped materials.
• Premature removal of protection.

Required Controls

• Remove tools, debris, and materials using safe handling methods.
• Maintain fall protection until employees are fully within a protected area or safely off the roof.
• Do not remove guardrails, covers, warning lines, or anchorages prematurely.
• Inspect the roof for remaining openings, loose materials, or hazards.
• Store fall-protection equipment properly after inspection.

General Safe Work Requirements

• Roof fall hazards shall be evaluated before employees access the roof.
• Fall protection shall be provided at applicable regulatory thresholds and whenever site or client requirements are more protective.
• Guardrails, covers, restraint systems, and other fall-prevention methods shall be used where feasible.
• Personal fall arrest systems shall use compatible components and approved anchorages.
• Fall clearance and swing-fall hazards shall be evaluated before using personal fall arrest equipment.
• Roof openings, holes, skylights, and fragile surfaces shall be guarded, covered, or otherwise protected.
• Safe roof access and transitions shall be provided and maintained.
• Employees shall not work from deteriorated or questionable roof surfaces until they have been evaluated and made safe.
• Tools and materials shall be controlled to prevent falling-object hazards.
• Roof surfaces, access paths, and work areas shall be maintained free of unnecessary slip and trip hazards.
• Employees shall not work on dangerously slippery roof surfaces unless the hazard has been effectively controlled.
• Weather conditions shall be monitored throughout roof work.
• Employees shall not use makeshift platforms, boxes, buckets, or other devices to gain additional working height.
• Fall-protection equipment shall be inspected before each use and defective equipment removed from service.
• A prompt rescue method shall be established when personal fall arrest systems are used.
• Equipment subjected to fall-arrest impact loading shall be removed from service.
• Work shall stop whenever roof integrity, access, fall protection, anchorage, weather, or rescue provisions are inadequate.

Training

Employees exposed to roof fall hazards shall receive training by a competent or qualified person, as applicable, so they can recognize fall hazards and understand the procedures necessary to minimize those hazards. Training shall address roof edges, holes, skylights, fragile surfaces, steep and low-slope roof hazards, access methods, guardrails, warning-line systems where applicable, personal fall arrest and restraint systems, equipment inspection, anchorage, fall clearance, swing falls, falling-object protection, weather hazards, and rescue procedures. Retraining shall be provided when workplace conditions or equipment change, or when employee knowledge or performance indicates that previous training is no longer adequate.

References

• OSHA 29 CFR 1926 Subpart M – Fall Protection.
• OSHA 29 CFR 1926.501 – Duty to Have Fall Protection.
• OSHA 29 CFR 1926.502 – Fall Protection Systems Criteria and Practices.
• OSHA 29 CFR 1926.503 – Training Requirements.
• OSHA 29 CFR 1926 Subpart X – Stairways and Ladders, where applicable.
• Applicable manufacturer instructions, site-specific fall-protection plans, and client requirements.