Roof Design
An automobile roof or car top is the portion of an automobile that sits above the passenger compartment, protecting the vehicle occupants from sun, wind, rain, and other external elements. Because the earliest automobiles were designed in an era of horse drawn carriages early automobile roofs used similar materials and designs.
The roof has been design as per the given master section and the heat distortion on roof and snow load crieteria calcluations are done in a spread sheets and they have been attachement below