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IBC/OSHA requirements for rooftop walkway systems

IBC/OSHA requirements for rooftop walkway systems

IBC/OSHA requirements for rooftop walkway systems

(OP)
I'm doing some code compliance research regarding roof-mounted walkway systems/catwalks/etc., and although I can find multiple manufacturers on the web, I am more interested in specific IBC and/or OSHA codes that are relevant in the design of such systems. I'm not sure if I will have to extrapolate from information regarding catwalks/handrails/etc. or if there is more specific information that I am missing. I would appreciate if anyone can think of specific codes that would be applicable. I'm also interested in the same information regarding roof-mounted duct supports and cable trays. These systems are not to be involved with general public use and will be in an industrial/private property setting.

RE: IBC/OSHA requirements for rooftop walkway systems

You won't find much in the IBC to help. Some Building Officials look at equipment access as part of the building and therefore under the building code, and some will permit you follow OSHA's guidelines for stairs, ladders, access, etc. It may have to do with how much traffic is expected on the roof.

My opinion is that most rooftop walkways and equipment access should be OSHA-compliant and not IBC-compliant. Access up TO the roof is often covered by the IBC - you may need a proper IBC egress stair, but narrow walkways and ladders should be OK on the roof. You should not need a 36"-wide accessible path and 7/11 stairs with closed risers to maintain HVAC units on the roof!

OSHA will offer guidelines for design, but you won't find much to hang your hat on regarding where OSHA applies and where the IBC applies.

RE: IBC/OSHA requirements for rooftop walkway systems

I can't offer much in the way of guidance other than to say every roof of meaningful size should have an easy way to access it for maintenance purposes, whether that is a ladder, inside stairway, roof hatch, etc. The roof is perhaps the most important exterior face of the structure and in most cases the largest exterior face. Being generally horizontally it is also probably the most prone to weathering. Good inspections and general housekeeping on the roof will keep any type of roof surface lasting much longer than if it is ignored.

RE: IBC/OSHA requirements for rooftop walkway systems

Agree with JLNJ. Unless there is public access to the roof, only OSHA requirements apply. 29CRF1910.23 & 1910.24

https://www.osha.gov/pls/oshaweb/owadisp.show_docu...


Ladders, ships ladders or alternating tread devices can also be used.

“Faith is taking the first step even when you don’t see the whole staircase.” MLK

RE: IBC/OSHA requirements for rooftop walkway systems

(OP)
Thanks very much for the helpful responses.

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