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


Water Curtain

Water Curtain

Water Curtain

I am currently designing the fire protection system for a large warehouse which has fire rated compartments with fire rated walls to confine the fire. These fire zones / fire compartments must have fire rated self closing doors to prevent spreading the fire from one zone to another. What section of what code allows a water curtain as a substitute for a self colsing magnetic fire rated door.

RE: Water Curtain

To my knowledge there is no allowance in the NFCs or ICCs that allow water curtains in lieu of FRR construction.

RE: Water Curtain

Like Night said I believe curtains are only for floor penetrations and large openings like prosceniums.

RE: Water Curtain


What are the size of the openings??

Unless something else is driving it, normally fusible link is only thing required.

Doors will more than likely be cheaper all the way around, over sprinklers.

RE: Water Curtain

All fire compartments in the entire warehouse will be protected by ESFR ceiling sprinklers which has large drop orifices and additionally, it will have in-rack sprinkler protection at one level of racking system. I will let you know the openings for each fire compartment soon.I believe the water will be supplied to the water curtains from same firefighting pump of sprinklers.

I would also like to know if self closing magnetic fire doors are cheaper then water curtains.

RE: Water Curtain

What will be the commodities stored in these fire rated compartments?

RE: Water Curtain


Is the in the USA??

Not a desingner builder whatever,,

But a overhead door or similar swing will be cheaper in the long run.

RE: Water Curtain


Have you reached out to the insurance carrier loss prevention department for input? Fire walls are a big deal to insurance companies. Installing anything less than a fire door with a fusible link or smoke detector for activation of the door can cost the building owners many $$$ over the life of the building. Water curtain will not cut it from an insurance point of view both from a water damage potential and adequate fire separation.Check out the free FM Data Sheets MAXIMUM FORESEEABLE LOSS 1-22 for details on fire wall openings.

RE: Water Curtain

just some side info here, we recently installed 3 deluge systems in the same industrial building in the USA for compartmentation reasons. The building in general complies with IBC but the AHJ accepted the deluge in lieu. So at the end, for me it s all about the AHJ or/and the insurance carrier.

RE: Water Curtain

Thank you so much for your valuable inputs. I will provide self closing fire rated doors instead of water curtains.

RE: Water Curtain

Water courtain will not protect as fine as door.
Sprinklers are to control damage while fire brigade arrive, and in warehouses one or two small variables may lead to limited sprinkler effectiveness.

If sprinklered, I guess big warehouse fire doors are more expensive than courtain.

If you have high cost goods, high deductibles, and AHJ and insurance accepts courtain, be sure to take all the preventive measures, plant 4 leaf clovers, and go to church every sunday.

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!


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