×
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

fire wall - existing pre-eng bldg

fire wall - existing pre-eng bldg

fire wall - existing pre-eng bldg

(OP)
A Contractor friend of mine erected a pre-engineered steel building. The inspector informed him that it violated the limiting distance requirements on the side wall and wants a two hr rating on the side wall (160 ft long x 18 ft eave ht).  The building is a typical pre-eng with rigid frames at 20 oc, w/ girts and 24 gage o/s sheeting. Has anyone had to do something like this after the fact.

There is a jog in the wall so that half of it requires only 1-hr rating

RE: fire wall - existing pre-eng bldg

seems more like an architectural question unless you are asking us about designing some type of break away wall....?

RE: fire wall - existing pre-eng bldg

What is the building occupancy and classification?

RE: fire wall - existing pre-eng bldg

Check out UL fire ratings U425, U489, and V421.
Each of those has the potential of a 2-hour rating with an appropriate number of layers of drywall.  Note that if you are needing a rating for an exterior fire source it may be necessary to get a layer of drywall between the girts and the exterior siding. (Obviously problematic on an existing structure).

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