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Heat stress and ladder safety

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Toolbox Talk: Heat Stress and Ladder Safety

Date: [DATE] Duration: [DURATION] minutes Presenter: [PRESENTER NAME] Location: [LOCATION]

Objective

To educate workers on the combined hazards of heat stress and ladder use, enabling them to recognize risks, implement control measures, and follow safe work procedures to prevent injuries and illnesses.

Introduction

Working in hot conditions increases the risk of heat stress, which can impair judgment and physical capabilities. Combining this with ladder use creates a heightened risk of falls and other injuries. This toolbox talk will cover how to identify and mitigate these combined hazards to ensure a safe working environment.

Presenter Note: Engage the audience by asking if anyone has personal experience related to the topic.

Key Points

  • Recognize the symptoms of heat stress and their impact on physical and mental performance. Heat stress can lead to impaired judgment, reduced coordination, and increased fatigue, all of which can increase the risk of falls from ladders.
  • Understand the importance of proper ladder selection, inspection, and setup, especially in hot weather. Heat can affect the structural integrity of ladders, making thorough inspections even more critical.
  • Implement control measures to reduce both heat stress and ladder-related hazards. This includes providing shade, water, and rest breaks, as well as ensuring proper ladder safety practices.
  • Follow safe work procedures for ladder use, including maintaining three-point contact and avoiding overreaching. These procedures are crucial for preventing falls, especially when heat stress is a factor.
  • Use appropriate PPE to protect against both heat and fall hazards. This includes wearing heat-reflective clothing, staying hydrated, and using fall protection equipment when required.

Hazard Identification

  • Heat Stress: Working in high temperatures can lead to heat exhaustion, heat stroke, and other heat-related illnesses. Symptoms include dizziness, fatigue, confusion, and muscle cramps, all of which can impair a worker's ability to safely use a ladder.
  • Ladder Instability: Improper ladder setup or use can lead to falls. Factors such as using the wrong ladder for the job, failing to secure the ladder properly, or overreaching can increase the risk of accidents.
  • Compromised Ladder Integrity: Excessive heat can weaken ladder materials, especially wood or plastic, making them more prone to failure. Regular inspections are essential to identify any signs of damage or degradation.

Presenter Note: Encourage participants to share any additional hazards they've encountered.

Control Measures

  • Engineering Controls: Provide shade or cooling areas to reduce heat exposure. Use ladders made of non-conductive materials when working near electrical hazards [1].
  • Administrative Controls: Schedule work during cooler parts of the day and provide frequent rest breaks in shaded areas. Implement a buddy system to monitor workers for signs of heat stress.
  • Personal Protective Equipment (PPE): Wear light-colored, loose-fitting clothing, and use cooling vests or bandanas. Ensure proper fall protection equipment is used when working at heights [2].
  • Ladder Inspection and Maintenance: Inspect ladders daily before use for any signs of damage or wear [1]. Ensure ladders are stored under suitable cover, protected from the weather, and kept in a dry location away from excessive heat [1].

Safe Work Procedures

  1. Assess the Environment: Before starting work, evaluate the temperature, humidity, and potential heat sources. Ensure adequate ventilation and shade are available.
  2. Inspect the Ladder: Check the ladder for any defects, such as loose rungs, damaged side rails, or worn non-slip feet [1]. Do not use a ladder if it is unsafe [1].
  3. Set Up the Ladder Properly: Place the ladder on a stable, level surface. Secure the ladder to prevent slipping or movement [3]. Ensure that if a portable ladder is used, that it is equipped with non-slip feet [4].
  4. Maintain Three-Point Contact: Always maintain three points of contact (two hands and one foot, or two feet and one hand) when climbing or working on a ladder [5].
  5. Avoid Overreaching: Position the ladder close to the work area to avoid overreaching. Climb down and reposition the ladder as needed.

Presenter Note: If possible, demonstrate the safe work procedure or use visual aids.

Personal Protective Equipment (PPE) Requirements

  • Hard Hat: Wear a hard hat to protect against falling objects.
  • Safety Glasses: Use safety glasses to protect against dust, debris, and other eye hazards.
  • Appropriate Clothing: Wear light-colored, loose-fitting clothing to promote ventilation and reduce heat absorption.
  • Fall Protection: Use a personal fall arrest system when working at heights where there is a risk of falling 3 meters or more [2].

[Emphasize the importance of proper PPE use and maintenance]

Real-World Example or Case Study

A worker was using a ladder to perform maintenance on a rooftop HVAC unit on a hot summer day. Due to heat exhaustion, the worker lost their grip and fell from the ladder, sustaining serious injuries. The investigation revealed that the worker had not taken adequate rest breaks, was not properly hydrated, and the ladder was not secured properly. This incident highlights the importance of recognizing the combined hazards of heat stress and ladder use, and implementing appropriate control measures.

[Discuss what went wrong or right, and the lessons learned]

Presenter Note: Ask participants if they can relate this example to their own experiences.

Group Discussion

Discuss the following questions:

  1. What are some early warning signs of heat stress that you should be aware of in yourself and your coworkers?
  2. What steps can we take to ensure ladders are properly inspected and maintained, especially during hot weather?
  3. How can we improve communication and awareness regarding heat stress and ladder safety on our job sites?

Presenter Note: Encourage active participation and facilitate the discussion.

Emergency Procedures

  1. Recognize the Signs: Be aware of the symptoms of heat stress (dizziness, confusion, nausea) and ladder-related incidents (falls, instability).
  2. Provide First Aid: If a worker shows signs of heat stress, move them to a cool, shaded area, provide water, and seek medical attention. For ladder-related injuries, administer first aid and call for emergency assistance.
  3. Report the Incident: Report all incidents, including near misses, to your supervisor immediately.
  4. Investigate the Cause: Conduct a thorough investigation to determine the root cause of the incident and implement corrective actions to prevent recurrence.

Questions and Answers

[Encourage participants to ask questions]

[Provide answers to common questions related to the topic]

  • Q: What type of ladders should we use when working near electrical sources?

A: Only use approved wood ladders or nonconductive ladders made of synthetic material equal to or exceeding the strength of approved wood ladders [1].

  • Q: How often should ladders be inspected?

A: All ladders should be inspected daily before use [1].

  • Q: What is the proper angle for setting up a ladder?

A: The ladder should be placed against the structure so that the slope of the ladder is 1 horizontal to 4 vertical [3].

Summary

  • Heat stress can significantly impair judgment and physical capabilities, increasing the risk of ladder-related accidents.
  • Proper ladder inspection, setup, and maintenance are crucial for preventing falls, especially in hot weather.
  • Implementing control measures such as providing shade, water, and rest breaks can reduce the risk of heat stress.
  • Following safe work procedures, including maintaining three-point contact and avoiding overreaching, is essential for safe ladder use.

Action Items

  1. Review and understand the company's heat stress prevention plan.
  2. Conduct daily inspections of ladders before use.
  3. Practice proper ladder setup and safe climbing techniques.

Remember: Stay cool, stay safe, and always inspect your ladder!

Report all hazards, near-misses, and incidents to your supervisor immediately.

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5 source record(s)

Sources used for this answer

[1] Occupational Health and Safety Code

Page 93

Open source document

Source excerpt

- (a) has a centre structural rail along the length of the ladder, - (b) is at least 1 metre wide, and - (c) is constructed of materials that are substantial enough in size to accommodate the maximum intended load. ## Manufactured portable ladder - 135 An employer must ensure that a portable ladder manufactured on or after July 1, 2009 meets the requirements of - (a) CSA Standard CAN3 Z11-M81 (R2005), Portable Ladders , - (b) ANSI Standard A14.1-2007, American National Standard for Ladders - Wood Safety Requirements , - (c) ANSI Standard A14.2-2007, American National Standard for Ladders - Portable Metal Safety Requirements , or - (d) ANSI Standard A14.5-2007, American National Standard for Ladders - Portable Reinforced Plastic - Safety Requirements . ## Securing and positioning - 136 A worker must ensure that - (a) a portable ladder is secured against movement and placed on a base that is stable, - (b) the base of an inclined portable ladder is no further from the base of the wall or structure than 1/4 of the distance between the base of the ladder and the place where the ladder contacts the wall, and - (c) the side rails of a portable ladder extend at least 1 metre above a platform, landing or parapet if the ladder is used as a means of access to the platform, landing or parapet. ## Fall protection 137 (1) An employer must ensure that a worker working from a portable ladder from which the worker may fall 3 metres or more uses a personal fall arrest system. - 137 (2) Subsection (1) does not apply while the worker is moving up or down the portable ladder. - 137 (3) Despite subsection (1), if it is not reasonably practical to use a personal fall arrest system, a worker may work from a portable ladder without fall protection if - (a) the work is a light duty task of short duration at each location, - (b) the worker's centre of balance is at the centre of the ladder at all times even with an arm extended beyond the side rails of the ladder, and - (c) the worker …

[2] Rules for the Administration of the Oregon Safe Employment Act (General Occupational Safety and Health, Division 2, OSHA Oregon)

Page 1588

Open source document

Source excerpt

Oregon Occupational Safety and Health Division Oregon Administrative Rules Division 2 ## (11) Ladders. - (a) When using portable ladders to climb trees, the ladder shall be tied to the tree or supported by another worker. When working from a ladder during cutting operations, the ladder shall be securely tied or braced, and the worker tied in as required by OAR [redacted phone](1)(a)(A). - (b) Ladders, platforms, and aerial devices, including insulated aerial devices, shall not be placed in a position where they could contact an electrical conductor. Reliance shall not be placed on their dielectric capabilities. - (c) Ladders made of metal or other conductive material shall not be used where an electrical hazard exists. Only approved wood ladders (constructed in accordance with ANSI A14.1-1982, Safety Requirements for Portable Wood Ladders, or nonconductive ladders made of synthetic material equal to or exceeding the strength of approved wood ladders, shall be used. - (d) Metal ladders used where no electrical hazard exists shall conform to ANSI A14.2-1982, Safety Requirements for Portable Metal Ladders. - (e) All ladders shall be inspected daily before use. Unsafe ladders shall not be used. - (f) The attaching of cleats, metal points, and safety feet; lashing; or other effective means of securing the ladder shall be used if there is danger of its slipping. - (g) Ladders shall be supported while in storage so they will not sag. Except when on mobile equipment, ladders shall be stored under suitable cover, protected from the weather, and kept in a dry location away from excessive heat. - (h) Ladders shall not be used as bridges or inclined planes to load or handle logs or other material. - (12) Climbing spurs. Climbing spurs shall be of the tree-climbing type and have gaffs suitable for the tree being climbed. Stat. Auth.: ORS 654.025(2) and 656.726(4). Stats. Implemented: ORS 654.001 to 654.295. Hist: OR-OSHA Admin. Order 27-1990, f. 12/12/90, ef. 2/1/91. OR-O…

[3] Occupational Health and Safety Regulations, 2020 (Sask. Reg. 10/2020)

Page 137

Open source document

Source excerpt

## OCCUPATIONAL HEALTH AND SAFETY, 2020 ## Travelways - 16-3 (1) An employer, contractor or owner shall ensure that every travelway: - (a) is strong enough to withstand any traffic to which the travelway may be subjected; - (b) has secure footing for workers and adequate traction for vehicles or equipment; and - (c) is at least: - (i) 600 millimetres wide, in the case of travelways installed before July 1, 1997; and - (ii) 900 millimetres wide, in the case of travelways installed on and after July 1, 1997. - (2) An employer, contractor or owner shall ensure that every travelway that may give rise to a hazard described in subsection 9-2(2) is provided with a guardrail. 31 Dec 2020 c S-15.1 Reg 10 s16-3. ## Stairs - 16-4 An employer, contractor or owner shall ensure that: - (a) the widths of treads, the depths of treads and the vertical distances between treads are uniform throughout the length of any stairway and that each tread is level; and - (b) any stairs installed on or after the day on which this section comes into force, including temporary stairs, are at least 600 millimetres wide. 31 Dec 2020 c S-15.1 Reg 10 s16-4. ## Ladders - 16-5 (1) An employer, contractor or supplier shall ensure that every ladder is designed, constructed, used and maintained to perform its function safely. - (2) An employer, contractor or supplier shall ensure that: - (a) no wooden ladder or stepladder is painted with any substance other than a transparent coating; and - (b) no ladder is made by fastening cleats across a single rail or post. 31 Dec 2020 c S-15.1 Reg 10 s16-5. ## Portable ladders - 16-6 (1) In this section and section 16-7, 'portable ladder' means any ladder that is not fixed in place, and includes a stepladder. - (2) An employer or contractor shall ensure that: - (a) a portable ladder is equipped with non-slip feet;

[4] Occupational Health and Safety Regulations, 2020 (Sask. Reg. 10/2020)

Page 138

Open source document

Source excerpt

## S-15.1 REG 10 ## OCCUPATIONAL HEALTH AND SAFETY, 2020 - (b) a portable ladder is secured against accidental movement during use; - (c) a metal or wire-bound portable ladder is not used where the ladder or a worker handling or using the ladder may come into contact with an exposed energized electrical conductor; and - (d) a portable ladder extends at least 1 metre above any platform, roof or other landing to which the ladder is used as a means of access. - (3) An employer or contractor shall ensure that each worker who handles or uses a portable ladder is instructed in the requirements of this section. - (4) An employer or contractor shall ensure that a stepladder: - (a) is not more than 6 metres high when set for use; - (b) has legs that are securely held in position by means of metal braces or an equivalent rigid support; and - (c) when in use, has a front section slope at an angle of 1 horizontal to 6 vertical. - (5) An employer or contractor shall ensure that: - (a) an extension ladder is equipped with locks that securely hold the sections of the ladder in the extended position; - (b) if a section of an extension ladder is extended, the section that is extended overlaps another section for at least 1 metre; - (c) an extension ladder consisting of 2 sections does not exceed 14.6 metres in length; and - (d) an extension ladder consisting of more than 2 sections does not exceed 20 metres in length. - (6) An employer or contractor shall ensure that no single portable ladder and no section of an extension ladder exceeds 9 metres in length. 31 Dec 2020 c S-15.1 Reg 10 s16-6. ## Use of portable ladders - 16-7 (1) If a worker uses a portable ladder other than a stepladder, an employer or contractor shall ensure that: - (a) the ladder is placed against the structure so that the slope of the ladder is 1 horizontal to 4 vertical; - (b) the worker does not extend any part of the worker's body except for the worker's arms beyond the side rails of the ladder;…

[5] Occupational Safety General Regulations (N.S. Reg. 44/99)

Page 82

Open source document

Source excerpt

## ladder, such as 3-point contact; Clause 148(2)(b) replaced: O.I.C. 2000-130, N.S. Reg. 52/2000. - (c) where the person is standing on a ladder, stand in the centre between the side rails; - (d) where the ladder is a step ladder, not stand on the material shelf, the top or the top step of the ladder; and - (e) where the ladder is not a step ladder, not work from the top three rungs of the ladder. - (3) Clauses (2)(b), (c), (d) and (e) do not apply to a firefighter engaged in structural firefighting or rescue. - (4) An employer shall remove a ladder from service when it has loose, broken or missing rungs, split side rails or other defects that may be hazardous to the safety of a person at the workplace. - 149 (1) An employer shall ensure that a wooden portable ladder that is not commercially manufactured - (a) is made of No. 1 or No. 2 spruce, pine, or fir as graded according to the latest version of CSA standard CSA 0141, 'Softwood Lumber', or other lumber that provides an equivalent level of safety; Subsection 148(2) amended: O.I.C. 2000-130, N.S. Reg. 52/2000. Clause 149(1)(a) replaced: O.I.C. 2000-130, N.S. Reg. 52/2000; amended: O.I.C. 2013-65, N.S. Reg. 53/2013. - (b) is not painted other than by being preserved with a transparent protective coating; - (c) if a single ladder, does not exceed 9 m in length; - (d) has rungs that are - (i) free of knots, - (ii) designed to carry a load of 200 kg placed at the centre, - (iii) uniformly spaced with a maximum rise of 300 mm, - (iv) secured to each side of the side rail of the ladder by at least 3 screws or spiral nails of adequate length or by attachments giving equivalent or \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

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