Roof Live Load "Promenade Purposes"
Roof Live Load "Promenade Purposes"
(OP)
Does anyone know what is intended in IBC for roof live loading under special purpose roofs where it is stated that "roofs used for promenade purposes" use 60psf live loading, while roofs "used for assembly purposes" are 100psf.
I'm looking at a single family residence where the roof will be used as a roof deck - what is the line between "promenade" and "assembly"? I can't find a definition anywhere.
I'm looking at a single family residence where the roof will be used as a roof deck - what is the line between "promenade" and "assembly"? I can't find a definition anywhere.






RE: Roof Live Load "Promenade Purposes"
RE: Roof Live Load "Promenade Purposes"
Mike McCann
MMC Engineering
RE: Roof Live Load "Promenade Purposes"
I don't think you need to use commercial live load requirements of 60 and 100 psf respectively for promenade and assembly.
RE: Roof Live Load "Promenade Purposes"
RE: Roof Live Load "Promenade Purposes"
Does a roof deck fall under the category "deck" and therefore it's 40psf, or does it fall under "special purpose roof" and get a 60 (or 100)?
The term promenade is ambiguous - how often do you have a roof for strolling but are sure that no one can sit/assemble? They should define that more clearly or eliminate it.
RE: Roof Live Load "Promenade Purposes"
I would use 60psf for residenial loading of decks and all balconies. Though some engineers do say that as the area become smaller than 100 sq. ft. people will stand closer together which is why areas 100 sq. ft. or less should be 60psf and any areas greater than 100 sq.ft. can be 40psf.
Garth Dreger PE - AZ Phoenix area
As EOR's we should take the responsibility to design our structures to support the components we allow in our design per that industry standards.
RE: Roof Live Load "Promenade Purposes"