Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Related Articles


ASCE 7 wind load on roof with angle greater than 45 degrees

ASCE 7 wind load on roof with angle greater than 45 degrees

ASCE 7 wind load on roof with angle greater than 45 degrees

How are roof component and cladding loads calculated in ASCE 7-02 or ASCE 7-05 for a gable roof with a roof angle larger than 45 degrees?

RE: ASCE 7 wind load on roof with angle greater than 45 degrees

I think there is a graphic and table which mention this, but I am in a hotel in Denver right now without a copy in front of me.

Absent better guidance, you would not be too far off using values for leeward wall surfaces.  Steeper than 45 degrees, you still get vortices in the lee of the ridge to consider, but the flow on the field of the leeward side is disrupted and it is a somewhat turbulent, low pressure air mass.

Windward pressures will be near the windward wall values.

For C&C, take special note of the perimeter, which will have the highest forces, particularly on the lee side of corners.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close