If part of the building area passes at 9am but does not pass at 3pm does that mean we cant use that 9am area for that time. Basically what I am getting at is that if at 9am 80 percent of the building is withing the 10-500 fc range and at 3pm the building is also at 80% but some of the areas are in different locations. Meaning that they dont share all the same area. Would this still work. Or is the area that does not pass at 3pm disqualify an area that would have passed at 9am?
Thanks in advance