A single exit or access to a single exit shall be permitted from any story or occupied roof where one of the following conditions exists.
Roof slope fire egress.
The minimum roof slope for metal roof panels depend on 3 different scenarios.
Emergency exits on these floors usually come in the form of egress windows.
The occupant load number of dwelling units and common path of egress travel distance do not exceed the values in table 1006 3 2 1 or 1006 3 2 2.
As a firefighter assigned to the roof you must keep an open mind with regard to your operations roof construction access to and egress from the roof tools and how you will perform the details.
For example a fire escape is defined as a means of egress because it s a way for someone to exit a building in an emergency.
Lapped nonsoldered seam metal roofs without applied lap sealant must have a minimum roof slope of 3 12 25 slope.
Paragraph 7 2 1 5 8 9 from nfpa 101 says that roof doors have to either allow free egress from the roof or be kept locked.
Roofs with slopes greater than 10 degrees and up to 30 degrees will require additional anchoring.
This means for every 12 horizontal units the roof must rise a minimum of 3 vertical units.