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.


Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

Sprinkler protection under open stairs?

Sprinkler protection under open stairs?

I have a question which is a little hard for me to figure out. I've attached a sketch showing the case. I have a parking garage which is fully sprinkled. This parking garage is not ended with a normal wall, but with some open stairs, which is 30% open (see the sketch). Above the staircase is open sky. There will be cars parked under the stairs, so there is a risk of fire. I am unsure whether sprinklers will activate, or the heat will just penetrate past the sprinkler through the stairs to the sky because of the 30% opening? Maybe it's better to mount smoke detectors under the stairs and sprinklers inside the parking garage? But the problem is that the garage is under a demand that says it should be fully sprinkled. The location is by the way in Denmark, if someone should wonder smile

Hope somebody can please help me with an advice?

RE: Sprinkler protection under open stairs?

Bagge, it seems to me, without benifit of a plan view that you have the sloped area covered, wouldnot a water curtain at the end of the completly covered area before the stair effectively seperate these? and do away with the spkrs under the stair calling it "exterior adjacent stair", besides depending on the dimentions one might be needed, would like to see a floor opening / plan view.  

RE: Sprinkler protection under open stairs?

What is the purpose of the check valve in Figure A. in NFPA-13 2010?

Thanks in advance.

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!


White Paper: Agile Product Engineering and Improved Product Outcomes
Today’s product development cycle is fraught with difficulties. Increased demands for complex functionality and reduced product development windows cause engineering teams to borrow practices from the IT industry, swapping outdated serial workflows for a more flexible and collaborative design method known as Agile Product Engineering. Download Now

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