×
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

ventilation requirements for attic of commercial bldg

ventilation requirements for attic of commercial bldg

ventilation requirements for attic of commercial bldg

(OP)
Will it likely pose a problem to remove the ventilators on the top of a commercial building. We have a 40 year old commercial building that will soon get a new roof (changing from a built-up roof system to a simgle ply membrane roofing system).  The roofing contractor suggested removing the existing turbine "whirlybird" ventilators to save on flashing cost and leak potentials.  He felt like they were not needed and he noted they are not on most similar buildings in shopping centers.

The building has a suspended ceiling (on track grid) with 2' x 4' ceiling tile panels that have about 1.5" insulation.  Above those, all the HVAC ducts, sprinklers, and pipes are run.  Then the roof is metal deck with lightweiht concrete with the built-up roofing on top of that.

Thanks for any advise or recommendations to other references.

RE: ventilation requirements for attic of commercial bldg

If the ceiling is not directly applied to the roof framing members, there is no requirement to ventilate the attic.  In most commercial buildings with flat roofs, there is no ventilation provided for the "attic" space.

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