Guards required at flat roofs of commercial buildings?

Does the 2007 CBC (2006 IBC) or the 2007 CMC (2006 UMC) require installation of GUARDS (guardrails) and/or parapet walls that are at least 42 inches high at flat roof of commercial buildings (with skylights, roof-top HVAC equipment) and are accessible via roof scuttles. This is for a new one-story warehouse/manufacturing building, 30 feet from grade to the roof?
Original Post
Guards and/or parapet walls are not required at the roofs since it is not considered "open-sided walking surface..."

If mechanical equipment or hatch is located close to roof edge, sections 1013.5 and 1013.6 would apply. See code text and sketch below.

Section 1013 of the 2007 CBC and 2006 IBC provides your answer.

============================
SECTION 1013
GUARDS, 1013.1 Where required.
Guards shall be located along open-sided walking surfaces, mezzanines, industrial equipment platforms, stairways, ramps and landings that are located more than 30 inches above the floor or grade below. Guards shall be adequate in strength and attachment in accordance with Section 1607.7. Where glass is used to provide a guard or as a portion of the guard system, the guard shall also comply with Section 2407. Guards shall also be located along glazed sides of stairways, ramps and landings that are located more than 30 inches above the floor or grade below where the glazing provided does not meet the strength and attachment requirements in Section 1607.7.
Exception: Guards are not required for the following locations:
1. On the loading side of loading docks or piers.
2. On the audience side of stages and raised platforms, including steps leading up to the stage and raised platforms.
3. On raised stage and platform floor areas, such as runways, ramps and side stages used for entertainment or presentations.
4. At vertical openings in the performance area of stages and platforms.
5. At elevated walking surfaces appurtenant to stages and platforms for access to and utilization of special lighting or equipment.
6. Along vehicle service pits not accessible to the public.
7. In assembly seating where guards in accordance with Section 1025.14 are permitted and provided.


1013.5 Mechanical equipment.
Guards shall be provided where appliances, equipment, fans, roof hatch openings or other components that require service are located within 10 feet of a roof edge or open side of a walking surface and such edge or open side is located more than 30 inches above the floor, roof or grade below. The guard shall be constructed so as to prevent the passage of a 21-inch-diameter sphere. The guard shall extend not less than 30 inches beyond each end of such appliance, equipment, fan or component.

1013.6 Roof access.
Guards shall be provided where the roof hatch opening is located within 10 feet of a roof edge or open side of a walking surface and such edge or open side is located more than 30 inches above the floor, roof or grade below. The guard shall be constructed so as to prevent the passage of a 21-inch-diameter sphere.

============================

Attachments

Photos (1)
CBC 1013.5 and 1013.6 state that guards are required when appliances, equipment, fans, roof hatch openings, and other components that require service are located within 10 feet of a roof edge or open side of a walking surface that is located more than 30 inches above the floor, roof, or grade below.
Is this any different in the 2001 CBC? I know 1998 UBC is less than 10 feet. What about the provision for a 24" parapet. The diagram above isn't entirely accurate as the CBC does not consider a guard (i.e. railing) and parapet as synonymous.
aarchitect,

I am not in the CBC but I don't understand why a parapet would not by synonymous with a guard if it met the height requirements of 1013.2, the opening and extention requirements of 1013.5 and the load requirements of 1607.7. (2006 IBC)
I'm still looking for the 2001 requirements but I'd like to throw out that the 2007 CMC gives a conflicting requirement of 6 feet from a roof scuttle to the roof edge in 904.10.3.3.

"At least six (6) feet of clearance shall be available between the opening and the edge of roof or similar hazard, or rigidly fixed rails or guards a minimum of forty-two (42) inches in height shall be provided on the exposed side. Where parapets or other building structures are utilized in lieu of guards or rails, they shall be a minimum of forty-two inches in height."
Likes (0)
×
×
×
×
×