A warm air furnace is to be installed on a building roof that has a 6 in 12 slope. The catwalk requirements for the installation shall have a minimum width of?

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For the installation of a warm air furnace on a roof with a 6 in 12 slope, the catwalk requirements are informed by industry standards and safety regulations, particularly those set forth by organizations such as the National Fire Protection Association (NFPA) and the Occupational Safety and Health Administration (OSHA). When working on sloped roofs, maintaining safety during access and maintenance operations is crucial.

A catwalk width of 24 inches is typically specified to ensure that there is ample space for technicians to safely maneuver while servicing equipment. This width allows for comfortable movement with tools and additional equipment, especially in situations where there might be a need for two technicians to work side by side or one to pass another. Choosing a width that is 24 inches also accommodates the requirement for carrying out tasks while minimizing the risk of falls, which can be heightened on sloped surfaces.

Wider catwalks, while potentially more spacious, often exceed the minimal functional requirements. The other options provide insufficient width for safe access and operation, which is critical when working on larger equipment like furnaces. Thus, the correct minimum width for a catwalk in this context is 24 inches.

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