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!

*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.

Jobs

Sprinklers in stairs

Sprinklers in stairs

(OP)
Just digging into protection of stairs, when NFPA 13 2013 edition calls out protection under the first "accessible" landing, is this underneath the 2nd floor landing as you look up?

Thank you,

Eric Hendrix, SET
NICET Certified
Design Manager

RE: Sprinklers in stairs

I believe it is in reference to the first intermediate landing (i.e, where stuff could potentially be stored under).

13-13 8.15.3.2.3.1 seems to confirm this, by saying that if the space under the stairs is blocked off so that storage can't occur then you don't need any sprinklers at the bottom.

RE: Sprinklers in stairs

(OP)
That is exactly what I thought and have thought for years as it goes directly into protection under the stair.

I guess the older I get I tend to rethink many positions, as a challenge to myself I suppose.

Eric Hendrix, SET
NICET Certified
Design Manager

RE: Sprinklers in stairs

There are many who still think it is above the door for egress. That is incorrect. To clarify, the required sprinkler will be around 5'-0" AFF depending on construction type.

R/
Matt

RE: Sprinklers in stairs

Just an aside, be aware of the difference between a stair and a stairwell.

We recently had an AHJ ask us to install sprinklers beneath every landing in a stairwell. NFPA 13 has a distinction between stairs and stairwells. Thankfully it was clearly worded enough to distinguish.

RE: Sprinklers in stairs

Good point. Most "Stairs" like Grand Stairs in a lobby, are actually Obstructions > 48". Sprinklers must then be installed throughout the area..

R/
Matt

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


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