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// CODE SNIPPET

[BG] 1510.2.1 Height Above Roof Deck

Building Code 2018 of Illinois > 15 Roof Assemblies and Rooftop Structures > 1510 Rooftop Structures > 1510.2 Penthouses > 1510.2.1 Height Above Roof Deck
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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 to the average height of the roof of the penthouse. Penthouses located on the roof of buildings of Type I construction shall not be limited in height.

Exception: Where used to enclose tanks or elevators that travel to the roof level, penthouses shall be permitted to have a maximum height of 28 feet (8534 mm) above the roof deck.

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