9.26.13. Sheet Metal Roofing

9.26.13. Sheet Metal Roofing
9.26.13.1. Thickness
  1. Sheet metal roofing shall be not less than
    1. 0.33 mm thick galvanized steel,
    2. 0.46 mm thick copper,
    3. 0.46 mm thick zinc, or
    4. 0.48 mm thick aluminum.
9.26.13.2. Support
  1. Except as provided in Sentence 9.23.16.1.(1), where sheet metal roofing is not supported by roof decking but spans between spaced supports, the panels shall be designed to support the specified live loads for roofs.