Sidewall wind suction on an irregular building (in plan view)

[SuG89]

Hello,
Refer to the attached image. I am wondering what would be the sidewall wind pressure coefficient for this case where the angle between windward and side walls is 64 degrees and not 90 degrees. Can I use -0.7 for this case?
Regards,
Su

 

[Ron]

You have to check all wind directions that would produce the greatest loading. There are wind directions that would be at 90 degrees to the angled walls you show.