What types of approval are obtainable for metal walls and metal roofs for approval in Dade County?
The procedure below describes two types of roof or wall panel approvals. Different panel shapes or profiles will require separate application. 1) Approval for one profile and one gage based on only one span and one pressure in the field or interior zone, in the same manner as it was tested, and one maximum calculated pressure with reduced span in the corner and perimeter or end zone. Thicker gages of same profile can be included in the approval but they will be limited by the results of the thinner gage. Minimum testing: Three (3) specimens of the thinner gage, if several gages are to be included, for the maximum span to be used in the field or interior zone. The test result shall be within a 20% maximum difference to be accepted. Calculations for one maximum projected pressure to be used on either corners and perimeter or end zone based on E, I and S adjusted by the test and limited by bending, deflection and reaction at fastener location. Limitations; pressure and span on the field,
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