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Wind Pressure Coefficient, Cq, Question.

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Does the Cq coefficient for elements in areas of discontinuities apply when 
you have an open structure? For example, I have an open frame canopy, steel 
posts and beams, supporting a metal roof deck. The metal deck cantilevers 4' 
at the front. Does the Cq factor (2.3+.5=2.8 for the overhang and 2.3 for the 
perimeter) apply in this case, since there are no two surfaces with an 
included interior angle, as defined in the UBC? Any EXPERT (no guessing) 
opinions?

Regards,

Oshin Tosounian, S.E.