Roof Wind Pressures
Roof Wind Pressures
(OP)
Hello,
I am working on a structure that will get "over-build" trusses installed on top of a flat roof to create a look like a mansard roof. I am trying to determine my reaction forces for these trusses. I have calculated my wind loads but I'm not sure when to use roof uplift or pressure with wall pressure or suction. Please refer to the attachment. I would think that #1 and #4 of the attachment are the forces that I need to design for. Are #2 and/or #3 ever possible loading conditions?
Thank you for your input!
I am working on a structure that will get "over-build" trusses installed on top of a flat roof to create a look like a mansard roof. I am trying to determine my reaction forces for these trusses. I have calculated my wind loads but I'm not sure when to use roof uplift or pressure with wall pressure or suction. Please refer to the attachment. I would think that #1 and #4 of the attachment are the forces that I need to design for. Are #2 and/or #3 ever possible loading conditions?
Thank you for your input!
EIT






RE: Roof Wind Pressures
In my opinion, if you're not sure, you should include it.
RE: Roof Wind Pressures
Thanks for the quick response and the explanation. I agree and plan to check the design as a parapet also.
EIT