rivets why?

Why are rivets used to fasten gable rakes, sidewall flashing, and ridge caps? Would not self tapping screws be easier?		Paul M 4/25/2017	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/22033/find/
Rivets will sometimes be used to connect two pieces of metal together and secure them. Screws will usually be used to secure the metal to the structure. It all depends upon what is needing to be done. Rivets can allow for continued thermal movement of the metal whereas screws can cause the metal to ripple with temperature changes,		Todd Miller Isaiah Industries, Inc. 4/25/2017	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/22034/find/
Also, in my experience, rivet heads are much smaller, less noticeable and will not back out.		David Stermer 4/25/2017	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/22035/find/

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