Working on a flat roof

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## Part 12 General Safety Precautions ## Housekeeping 185 An employer must ensure that a work site is kept clean and free from materials or equipment that could cause workers to slip or trip. ## Lighting 186 (1) An employer must ensure that lighting at a work site is sufficient to enable work to be done safely. 186 (2) An employer must ensure that a light source above a working or walking surface is protected against damage. - 186 (3) An employer must ensure that there is emergency lighting at a work site if workers are in danger if the normal lighting system fails. - 186 (4) Emergency lighting must generate enough light so that workers can - (a) leave the work site safely, - (b) start the necessary emergency shut-down procedures, and - (c) restore normal lighting. ## Pallets and storage racks 187 (1) An employer must ensure that pallets used to transport or store materials or containers are loaded, moved, stacked, arranged and stored in a manner that does not create a danger to workers. - 187 (2) An employer must ensure that racks used to store materials or equipment - (a) are designed, constructed and maintained to support the load placed on them, and - (b) are placed on firm foundations that can support the load. - 187 (3) A worker must report any damage to a storage rack to an employer as quickly as practicable. - 187 (4) The employer and the workers at a work site must take all reasonable steps to prevent storage racks from being damaged to the extent that their integrity as structures is compromised. ## Placement of roofing materials - 187.1 (1) An employer must ensure that supplies and roofing materials stored on the roof of a residential building under construction are located not less than 2 metres from a roof edge. - 187.1 (2) An employer must ensure that the weight of supplies and roofing materials referred to in subsection (1) is uniformly distributed.

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## 29 CFR 1926 (OSHA) - (ii) Each employee reaching more than 10 inches (25 cm) below the level of the walking/working surface on which they are working, shall be protected from falling by a guardrail system, safety net system, or personal fall arrest system. NOTE: Bricklaying operations performed on scaffolds are regulated by subpart L-Scaffolds of this part. - (10) Roofing work on Low-slope roofs. Except as otherwise provided in paragraph (b) of this section, each employee engaged in roofing activities on low-slope roofs, with unprotected sides and edges 6 feet (1.8 m) or more above lower levels shall be protected from falling by guardrail systems, safety net systems, personal fall arrest systems, or a combination of warning line system and guardrail system, warning line system and safety net system, or warning line system and personal fall arrest system, or warning line system and safety monitoring system. Or, on roofs 50-feet (15.25 m) or less in width (see appendix A to subpart M of this part), the use of a safety monitoring system alone [i.e. without the warning line system] is permitted. - (11) Steep roofs. Each employee on a steep roof with unprotected sides and edges 6 feet (1.8 m) or more above lower levels shall be protected from falling by guardrail systems with toeboards, safety net systems, or personal fall arrest systems. - (12) Precast concrete erection. Each employee engaged in the erection of precast concrete members (including, but not limited to the erection of wall panels, columns, beams, and floor and roof 'tees') and related operations such as grouting of precast concrete members, who is 6 feet (1.8 m) or more above lower levels shall be protected from falling by guardrail systems, safety net systems, or personal fall arrest systems, unless another provision in paragraph (b) of this section provides for an alternative fall protection measure. Exception: When the employer can demonstrate that it is infeasible or creates a greater hazard to u…

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- (a) be experienced in the work overseen and trained in the role of safety monitor, - (b) be present at all times when an employee is in the control zone, - (c) have complete authority over the work as it re -lates to the prevention of falls, - (d) be located so as to have a clear view of the work being performed by the employee, - (e) be able to communicate with the employees be -ing protected without needing to yell, - (f) be instantly distinguishable from other workers, - (g) engage in no other duties while acting as the safety monitor, and - (h) monitor a maximum of eight workers. - 105 (7) An employer shall ensure that no employee en -ters the control zone unless the employee is required to do so by reason of the employee's work duties. - 105 (8) The owner of a place of employment, employer and contractor shall each ensure a travel restraint system - (a) is rigged to prevent the employee from reaching an unguarded edge, - (b) is, subject to paragraph (c), attached to an an -chor point capable of supporting two times the maxi -mum load likely to be applied to it, or - (c) when it is used on a roof with a slope greater than 3 in 12, is attached to an anchor point that is ca -pable of withstanding a 22 kN force or, if used under the direction of a competent person, four times the maximum load that may be generated in the fallarresting system. 96-60; 2010-159 ## Weatherproofing of roof - 106 An employer shall ensure that an employee who is engaged in the weatherproofing of a roof that - a) est expérimenté dans la tâche qu'il supervise et a reçu une formation quant à son rôle de chargé de la sécurité; - b) est présent en tout temps lorsqu'un salarié se trouve dans le périmètre de sécurité; - c) possède les pleins pouvoirs au regard du travail en ce qu'il se rapporte à la prévention des chutes; - d) se positionne de telle sorte à avoir une bonne vue de la tâche que le salarié effectue; - e) est ca…

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that a safety net that meets the requirements of subsec -tion 49.8(2) is installed under the area where an em -ployee is working or a that a travel restraint system or fall-arresting system is used by the employee. 2010-159; 2022-27 ## Roofs ## Weatherproofing of roof 105 (1) An employer and a contractor shall each ensure that a warning line is - (a) not less than 2 m from the unguarded edge, - (b) has a minimum diameter of 10 mm, - (c) is suspended at a height of not less than 750 mm and not more than 900 mm, - (d) is supported by corner and intermediate posts sufficient to keep the line taut, and - (e) has readily visible markers placed every 1.5 m along the length of the line. 105 (2) Despite paragraph (1)(a), a warning line may be 1 m from an unguarded edge at the dump point for snow removal or when an employee is engaged in weatherproofing, provided adequate precautions are taken to ensure the safety of the employee. - 105 (3) An employer shall ensure that an employee who is working in the control zone uses another method of fall-protection in addition to the warning line. - 105 (4) When employees are engaged in weatherproof -ing, a safety monitor may be used as the means of fallprotection for employees working in the control zone. - 105 (5) The safety monitor referred to in subsection (4) shall ensure that tasks being performed in the control zone are performed in accordance with the fallprotection code of practice and in a manner that mini -mizes the potential for an employee to fall. - 105 (6) A safety monitor referred in subsection (4) shall s'assurent chacun que des filets de sécurité répondant aux exigences du paragraphe 49.8(2) sont installés audessous du lieu où travaille un salarié ou que ce dernier utilise un système de limitation du déplacement ou un système d'arrêt de chutes. 2010-159; 2022-27 ## Toits ## Imperméabilisation des toits…