outrigger scafold engineering

huangyhg

outrigger scafold engineering
i am investigating whether a wood roof structure can support an outrigger scaffold setup.  the weight on the steel scaffold is approximately 1300# (mostly on the back) to counterweight the platform that hangs over the building.  this results in 600# point loads on the 2 rear scaffold legs (assume 100# goes to the front legs).
a raised 2x4 @ 48鈥?o.c. roof structure sits 2鈥?above the main roof and appears to be insufficient to handle this load condition.  although this is hard to picture i guess, my question is鈥?br>
has anybody run into something like this or
does anybody have any references that might help (scaffold engineering)?
thanks for your help