One hour fire rating roof 1

[stripez]

Can you give example of a one hour fire rating roof?

For bare I-beam w8x21 and C-purlin 2x6" 1.8mm without any fire retardant or fire cover carrying lightweight metal roof. How long before the I-beam would bend and the C-purlin and thin metal roof melt if they were exposed directly to fire?

Any photos of bent I-beam, melted C-purlins and thin metal roof?

 

[JLNJ]

Fire rated assemblies are tested in a lab under standardized conditions and given ratings according to the performance of the assembly. Hundreds of different assemblies have been tested. Choose the one which works for you.

It sounds like you don’t know what you are doing here - hire an architect to help.