Parapet Roof Height

If you didn t get it right you concentrated the stresses at roof edges and you could suck in a parapet or tear or rip a membrane at the parapet photographs 3 and 4.

Parapet roof height. Roof membrane temperatures ottawa canada summer day. Install a non penetrating full height railing. Minimum of 12 to top of parapet. 2015 ibc code commentary.

If the criteria indicated below cannot be attained design calculations should be submitted to indicate suitability. Insulate within parapet wall cavity to depth of roof insulation if present. The minimum height of a parapet wall above the roof surface is 30 inches. We offer railings that attach to the top of the parapet.

If you can penetrate your roof parapet there are several roof parapet railing solutions. Roof membrane must lap up wall to minimum of 12 above roof plane or per specifications whichever is greater. Raise the parapet height with a railing. This is the simplest solution.

Courtesy of max baker and the national research council of canada. The minimum thickness and maximum height of parapet walls should be as indicated in the diagram below. However when a roof slopes down toward an exterior wall and parapet with a slope greater than 2 12 further analysis is required to determine if a taller parapet is necessary.