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1509.2.1 Height Above Roof
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A penthouse or other projection above the roof in structures of other than Type I construction shall not exceed 28 feet (8534 mm) above the roof where used as an enclosure for tanks or for elevators that run to the roof and in all other cases shall not extend more than 18 feet (5486 mm) above the roof.
Related Code Sections
1509.2.1 Roof Assemblies and Rooftop Structures, Height Above Roof
A penthouse or other projection above the roof in structures of other than Type I construction shall not exceed 28 feet (8534 mm) above the roof ...
Building Code 2009 of Alabama > 15 Roof Assemblies and Rooftop Structures > 1509 Rooftop Structures > 1509.2 Penthouses > 1509.2.1 Height Above Roof
1510.2.1 Roof Assemblies and Rooftop Structures, Height Above Roof Deck
Penthouses constructed on buildings of other than Type I construction shall not exceed 18 feet (5486 mm) in height above the roof deck as measured ...
Building Code 2015 of Alabama > 15 Roof Assemblies and Rooftop Structures > 1510 Rooftop Structures > 1510.2 Penthouses > 1510.2.1 Height Above Roof Deck