radius corner/roof caps to siding(aluminum)

[skmnorth]

What would be the best way to install aluminum siding with aluminum radius corners all around.I want this material installed without screws using the double sided tapes to a steel structure.Would the radius edge have to be installed before the full sheets of siding,using an interlocking seam.Or would the radius edge have to be fastened down before the siding is put in place,and then insert strips mounted along the seams.I'm trying find which process is the cleanest. Thank-you!

[MHensley]

The best in my mind would be to put the siding on first then the roof caps to help hold the siding back tight against the frame. This would also prevent additional moulding and leaks