hatches in spaces i think those stair structures are awe notifying. >> i can speak to that. >> when there's a roof deck you need a stair that's code compliant and need handrails a hatch didn't allow that a hatch works if mechanic equipment or spates space on the roof. >> we've used hatches before why is this different that a hatch won't work here. >> i honestly can't answer that why a hatch wouldn't be feasible as opposed to the bulk. >> can i ask the architect so if we were to minimal a hatch that's an opening in the envelope at that location we'll be required to build a par pit