![hopper area calculation](/e69yszg/666.jpg)
hopper area calculation
Assumed 100 psf wall for this calculation psig Π Pred/Pmax barg Check for L/D less than 2 Building requires a factor of on vent area Vent area is increased if panel density exceeds the threshold or 40 kg/m^2, whichever is smaller. The total mass of the panel, including insulaton, fasteners and restraint system is divided by the open vent area.