×
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

what is fm global loss prevention?

what is fm global loss prevention?

what is fm global loss prevention?

(OP)
why do roof assembly need to meet fm class 90?

RE: what is fm global loss prevention?

Factory Mutual is a large insurance organization.  Their specifications have been widely accepted as fundamentally sound and protective of buildings.  Other insurors require compliance with FM, mostly for commercial/industrial buildings.  FM is usually at least as stringent as the building codes.
 

RE: what is fm global loss prevention?

Ron has correctly stated that Factory Mutual (FM) is a large insurance organization that drafts standards that try to ensure that the property owners building will survive most hazards.  The class the OP is refering to "I" or "1" - 90 and refers to an acceptable wind pressure of about 45 lbs per sq. Ft. and then doubled and applied to the field of the roor surface with higher numbers at the edges and ridge and even higher numbers(pressures) applied to the corner zones.  Recently (last ten yeats or so)the system has been based on the IBC Code with Importance factors of 1.15 (essential facility) applied.

They also have snow loads with a coef. of 0.9 * the Ground Snow Load instead of 0.7 * the GSL to get the Flat Roof Snow Load.

Their rules apply to fire rules, sprinkler systems, Hail, seismic, etc., etc.

You can download there design rules from their website which you can get by searching for Factory Mutual Insurance.

Their rules only apply if your owner wants to be insured by their company or one that uses their standards.

Many Architects call out their specifications rightly and wrongly.

Jim

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