×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Snow Drift on Lower Roof

Snow Drift on Lower Roof

Snow Drift on Lower Roof

(OP)
Ground Snow = 35 psf
Roof Snow = 30 psf.

The lower roof, above an entrance, extends 10' beyond the  building.  The upper roof,(lu>150')which is 13' above the lower roof, extends 8' beyond the building.  Thus, the lower roof extends 2' further from face of building.  With the 8' overhang above the lower roof, will a drift occur?

Thank you!

RE: Snow Drift on Lower Roof

I wouldn't count on an upper roof overhang to reduce a lower roof drift.  While there is some logic in saying that blown snow will drop mostly beyond the lower roof, with swirling winds, complex behavior, and silence on this matter in the codes, I'd take the conservative route here.

RE: Snow Drift on Lower Roof

If you leave your car window open one quarter inch, even with one of the popular aftermarket wind/rain deflector installed, snow will blow in under the right conditions.  Be conservative, do not count on a shadow effect.

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! Already a Member? Login



News


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