×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Jobs

Roof Drainage

Roof Drainage

Roof Drainage

(OP)
How do you size a roof gutter?

RE: Roof Drainage

I'm led to believe that MEPs have building codes they follow for gutters, that go by roof area.  This corner of the website is mostly civils, and we usually ignore this.  You might want to crosspost this question to the ME area of the site.  I'm sure nobody will object.

Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com

RE: Roof Drainage

you can think of gutters as open channel flow with the roof contributing sheet flow into the channel. could manning equation work?

I would make basic assumption that you want the gutters to handle lets say 2" of rainwater. That would give you the volume  based on roof area.
Then use manning equation to size it.  

RE: Roof Drainage

In addition to the actual gutter capacity, you need to check for (orifice flow) restriction at the downspout connection.

Peter Smart
HydroCAD Software
www.hydrocad.net
 

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!


Resources