1013.5 mech equip guards

[rktect 1]

Actually the 18 foot long guard rail will be as follows.

there are 4 upright legs spaced at 6'-6" apart equalling about 18 feet wide. Each upright at both ends is held down by 210 pounds of weights. The two center uprights will only have 30 pounds of weights.

 

[Mech]

Secured to the building could mean tape, glue, rope . . .

I bet this is not what was intended.

 

[fireguy]

Hang 200# of sand, gravel or cement blocks over the roof edge and see if anything falls on the ground?

 

[ICE]

Hang 200# of contractor over the roof edge and see if anything falls on the ground?

If they trust the system, let them prove it.....but I would never approve it.

 

[Phil]

I glanced through the documentation on the web site. There tests seemed to show the freestanding unit can meet the design load. Even if you ignore the requirement for structural attachment, IIRC, chapter 17 of the IBC requires in situ testing to performed with twice the design load. So the rail would need to be tested with 400 lbs concentrated load and tested with 100 plf load.

 

[Phil]

I don't know if I was clear in my previous post. The rail system appeared to be tested with a 50 plf load. Not what the code requires for in situ testing.