×
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

CONCEALED SPACE SPRINKLERS

CONCEALED SPACE SPRINKLERS

CONCEALED SPACE SPRINKLERS

(OP)
If there is a ceiling that is 8" below the solid wood joists and the steel that supports the ceiling is 2" thick, would you consider this exempt from needing sprinklers above and below? It may be a little picky but the space to fit the pipe and upright cc2 head is really limited if not impossible to fit everything in. Would you follow the letter of the code or say close enough?

RE: CONCEALED SPACE SPRINKLERS

When you say "the steel that supports the ceiling", do you mean the thin hat track that holds the drywall up?  I'm not just picturing it.

Is the building existing, or new?  If new, ask the arch/GC to raise the ceiling 2" or just board to the underside of the joists.  

 

RE: CONCEALED SPACE SPRINKLERS

You are talking about a combustible concealed space where some sort of suspended gypsum board ceiling is fixed to a metal frame?

I would sprinkler it.

To make a call "close enough" is well outside the limits of a layout technicians competency.

If for some reason I felt it wasn't necessary I would hire a competent PE or FPE to evaluate the situation and if he told me, on letterhead with signature please, sprinklers weren't required then I would leave them out.  That said good luck on finding one that would sign off on something like that.

When I have questions I always ask myself "what would a FPE tell  me?" which always causes me to do what I wanted to get out of doing.
 

RE: CONCEALED SPACE SPRINKLERS

I would either have them raise the ceiling 2" or put a layer of rock on the bottom of the 2x's

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