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					                    PWS WORKPLACE
                    HEALTH and SAFETY PROGRAM

                    FALL PREVENTION
                    and ROOF SAFETY

                  FOR PWS OPERATED and

Prepared by:
Technical Support Services
Asset Management Division
Department of Public Works and Services
Government of the Northwest Territories

April 2004

 1. Introduction                                                 3. Responsibilities
    The Public Works and Services (GNWT) Fall                    PWS Responsibilities:
    Prevention and Roof Safety Program helps                     •   Provide a safe working environment for all
    prevent falls from elevated work areas. Elevated                 PWS staff working on roofs and elevated
    areas are work sites that are more than 3 metres                 areas.
    (10 feet) off the ground or floor.                           •   Ensure that all staff and contractors working
    This program applies to all employees or                         on roofs and elevated areas know the
    contract service providers working for PWS. It                   procedures for roof safety.
    applies to all in-service facilities (buildings). It         Worker Responsibilities:
    also applies to fuel tanks and delivery trucks.
    The program does not apply to projects under                 •   Know the safety procedures for accessing
    construction or renovation.                                      and working on roofs and elevated areas.
                                                                 •   Use required safety equipment properly.
                                                                 •   Keep work areas free of snow, ice, and
                                                                     materials not needed for the immediate work.
    2. Definitions                                                   This prevents slip, fall, or trip hazards.
                                                                 •   Immediately report or correct faulty
    In-service facilities – Buildings that are being
                                                                     equipment and hazardous conditions.
    used. Also includes newly constructed or
    renovated buildings, where a certificate of
    substantial completion has been issued.
    Control zone – The 2-metre border around the            4.       General Requirements
    edge of a flat roof or platform. The control zone
    is bigger than two metres if the surface is                  All buildings must provide:
    slippery. A control zone is also needed around               • Safe access to roof areas.
    shafts, pits, hatch entries, etc. The use of a               • A way to load materials onto roof or elevated
    control zone is not permitted as a fall protection               area.
    system on any sloped roof.
                                                                 • Permanent access within the safe zone to
    Safe zone – An area (inside the control zone)                    roof-mounted equipment that needs ongoing
    where it is safe to work. It must be clearly                     maintenance – or, permanent fall safety
    marked, so all people on the roof can see it.                    protection equipment.
                                                                 • A clearly marked safe zone when workers are
                                         Roof Edge                   present on a flat roof or elevated area.
                                                                 • Permanent fall safety equipment on all
            2m       CONTROL ZONE                                    sloped roofs and where the Workers’
                                                                     Compensation Board (WCB) requires it. This
                                                                     includes fixed anchor points where needed.
                   SAFE ZONE
                                                                 • All permanent roof access must be clear of
               Access to Safe Zone                                   obstructions and in good repair.

                                                                        “Fall Protection is Our Duty”
                      Guardrails with Access to Safe Zone
          Roof Plan – Control and Safe Zones

2                                  GNWT – PUBLIC WORKS AND SERVICES
                                                          FALL PREVENTION AND ROOF SAFETY

5.       Safety Procedures
     Keep in Touch – When you work alone on a                 Control Zone – A control zone is required for
     roof platform or surface more than 3 metres (10          all work performed on flat roofs and elevated
     feet) high, stay in regular contact with other           areas. When you are in the safe zone, no other
     employees. The best way is for them to be able           fall protection is needed.
     to see you. A communications (radio) system is
     an acceptable alternative.                               How big is the control zone?
                                                          •   at least 2 metres (6½ feet) wide, from the edge of
     Short-Term Access – If you need to work in the           the roof or platform.
     control zone or on a slope, even for a short time:   •   wider than 2 m during bad conditions, such as
         • Stay in direct contact with another                when the roof surface is slippery.
                                                              The control zone must be clearly marked in a
         • Use the right fall protection, as required         way that can be seen all year. The PWS standard
             by the WCB.                                      is a raised warning line – a 6.5 mm (¼ inch)
     This includes roof inspections and maintenance           yellow polypropylene rope hanging between
     of equipment.                                            orange pylons one metre high.
     Ladder Safety – If you use a ladder to gain              Guardrails – If permanent roof access is not in
     access to a roof, keep 3 points of contact at all        the safe zone, permanent guardrails must be
     times. This means keeping both hands and one             installed.
     foot, or both feet and one hand, in contact with
     the ladder at all times.                                 Working in the Control Zone – When you
                                                              work in the control zone of a roof or elevated
     Do not hand carry equipment, parts, supplies or          surface, always:
     tools. Use a rope or hoist to raise or lower
     materials. A suitable backpack can be used for       •   Use toeholds or kick boards in the work area, as
     materials up to 6 kilograms.                             required by the Workers’ Compensation Board.
                                                          •   Use a lifeline or lanyard and body harness
     Portable Ladders – When using a portable                 attached to a permanent anchor; unless a
     single or extension ladder:                              guardrail is provided at the edge of the control
•    Place the ladder so the distance from its base to        zone, hatch entries, and entrances to shafts and
     the wall (or other support) is about ¼ of the            pits.
     ladder length from the ground to the support.
•    Make sure the bottom of the ladder rests on a            Lighting – If there is no permanent lighting,
     firm and level base, and the top end rests on a          install temporary lights in the work area and
     bearing surface that is strong enough to support         along the path to the work area, if warranted.
     the load.
                                                              Bad Weather – Do not work on a roof or
•    Make sure the ladder is long enough to stick up          elevated area during bad weather.
     about one metre above the place you are
     climbing to.
•    Be sure the ladder has a non-slip base or is held,
     tied or secured to prevent slipping.
                                                                        “Safety is not a matter of
•    Do not work from the top 2 rungs of a ladder or             being able to afford it or not afford it,
     the top 2 steps of a stepladder.                                     it is a moral issue.”

                                   GNWT – PUBLIC WORKS AND SERVICES                                                3
                              FALL PREVENTION AND ROOF SAFETY

6.      Remember                                       7.        Standards and References
     Remember these important rules:                        For more detail about standards, read these:
•    Keep direct contact with another employee.             • Canadian Standards Association
•    Work with appropriate fall protection.                 • NWT Consolidation of General Safety
•    Mark the control zone with a temporary raised             Regulations
     line if there is no permanent guardrail.               •    NWT Fall Protection Code of Practice
•    Use the control-zone procedure only on a flat              (currently in draft form)
•    Clear the work area and nearby areas of snow
     and ice and non-secured materials.
                                                            References include:
•    Clearly mark locations of all roof accessories,
     like parapets, hatches, vents, chimneys, and           • WCB legislation, NWT Safety Act
     skylights.                                             • CAN/CSA-Z259.1-95, Safety Belts and
                                                            • CAN/CSA-Z259.2-M1979, Fall-Arresting
                                                               Devices, Personnel Lowering Devices, and
                                                               Life Lines
                                                            • CAN/CSA-Z259.10-M90, Full Body
                                                            • CAN/CSA-Z259.11-M92, Shock Absorbers
                                                               for Personal Fall Arrest Systems
                                                            • Canadian Centre for Occupational Health
                                                               and Safety

4                              GNWT – PUBLIC WORKS AND SERVICES

Shared By:
Description: Safety Equipment,Means that for the protection of traffic and pedestrian safety, give full play to the role of the road, set in the road along the pedestrian tunnels, pedestrian bridges, lighting, guardrails, signposts, signs and markings and other facilities in general.