what is the rationale for allowing 98% of the osb web to be cut out of wood I joist? they recommend cutting holes in the center of the span. How does this affect the resistance to maximum bending moment at the center? Would the unit act like a truss with 45 degree force lines thus aviding the...
I am in a 110 mph wind zone.48" x24" roof vents are cut into the 1/2 osb roof sheathing.Should the edges be blocked at unsupported edges? Inspector Jeff in Florida