Roofing work

Roofing work is a high-risk activity. The most common causes of injury are  

Only work of very short duration (certainly less than a day) should be carried out on pitched roofs accessed only from ladders. Pitched and other roof edges will normally require protection in the form of guardrails and toeboards fitting. 

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Work on high-voltage electrical supply, radioactive equipment, roof work such as checking toxic exhaust from ventilation outlets. 

The suspended superheater below the furnace roof worked well in regulating the steam temperature. Three 75 t/h CFBC boilers of similar design have been operating in Anshan Second Thermal Power Plant during... 

C. Joint position coefficient B B value is determined by the relative azimuth angle of control joint surface and working face roof Based on classification method, joint fissure survey results in field and coal and rock physical and mechanical parameters test results. The dip angle of controlled joint surface is steep dip in working face roof Working face roof is normally horizontal. The joint position coefficient B of surrounding rock is 0.85 when it is classified by the unfavorable principle. This value is used to improve safety factor. 

Fall protection is needed anytime a fall of 6 feet or more is possible, including roof work. 

For example, the old instruction said that employers performing roofing work did not have to use active fall protection systems such as har-ness/lanyard/ lifeline or self-retracting devices, guardrails... 

Alternative fall protection measures may also be used to the extent allowed under the provisions addressing specific types of work. For example, one provision permits the use of warning fines and safety monitoring systems during tfie performance of roofing work on low-sloped roofs. 

The limitations on the use of mechanical equipment during the performance of roofing work on low-sloped roofs ... 

Warning lines — must be must be erected around all sides of the roof work area and shall consist of ropes, wires, or chains, and supporting stanchion. 

During roofing work, materials and equipment cannot be stored within six feet of a roof edge unless guardrails are erected at the edge. Materials near a roof edge must be stable and self-supporting. 

The warning line must be erected around all sides of the roof work area. 

The two companies were cited for willful violations stemming from a lack of fall protection for workers performing roofing work and failing to use fall protection while workers were being machine lifted to the roof... 

Mechanical equipment means all motor or human propelled wheeled equipment used for roofing work, except wheelbarrows and mopcarts. 

Roofing work means the hoisting, storage, application, and removal of roofing materials and equipment, including related insulation, sheet metal, and vapor barrier work, but not including the construction of the roof deck. 

Warning line system means a barrier erected on a roof to warn employees that they are approaching an unprotected roof side or edge, and which designates an area in which roofing work may take place without the use of guardrail, body belt, or safety net systems to protect employees in the area. 

No employee shall be allowed in the area between a roof edge and a warning line unless the employee is performing roofing work in that area. 

No employee, other than an employee engaged in roofing work [on low-sloped roofs] or an employee covered by a fall protection plan, shall be allowed in an area where an em-... 

A. No. OSHA s fall protection standard for construction generally requires fall protection when there is a fall distance of six feet or more. In a few, very specific situations (low-slope roof work, some leading-edge work, precast concrete erection, and residential construction), because of feasibility limitations, the standard permits the use of a warning line, in combination with other measures, instead of conventional fall protection (guardrail systems, personal fall arrest systems or safety net systems) to keep employees away from an edge. 

Roof work, particularly work on pitched roofs, is hazardous and requires a specific risk assessment and method statement prior to the commencement of work. Further details are given in Chapter 8. 

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