Hi all,
Potential scenario on stair vignette...
If I need to propose a stair landing to be located directly above the exit door on ground floor (or anywhere above the egress path), what is the minimum clearance required? I know we need 80 inches headroom in the stairs, but what about when you are at ground floor, and you need to walk under a stair landing to the exit door? This is not specified in the vignette code, but my research suggest that an egress path needs 7'-6" clear headroom... So assuming the stair landing is 12" thick, I should be able to locate the landing at 8'-6" or higher, correct?
The section on the practice vignette shows the height of the ext door as 8'-0", so would a 9'-0 intermediate landing height suffice in this case?
Also, has anyone ever seen the exit door have a head height lower than 8'-0"?
I know it is safer to go higher, no need to remind me... I am specifically asking what is the absolute minimum clearance assuming the door is lower than 8'-0"? And if you locate a landing below the minimum clearance, is this a fatal error?
Finally, does failing the stair vignette automatically mean failing the whole test?
Thank you.