Roof projects new fm global reviews roof plans to determine resistance to anticipated wind uplift pressures and fire spread potential.
Fm roof uplift ratings.
In the case of roofing systems fm is particularly well known for determining how roofing performs not only for fire but also for high wind.
These ratings actually apply to wind uplift pressure in pounds per square foot and are not directly related to.
Include drawings and details of the roof cover flashing and design loads.
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Fm approvals have classification ratings 1 60 1 90 or 1 120.
The following information is needed to conduct a thorough review of new roof installations and re roofing projects.
In fact it is unique among other testing laboratories in the way that it performs wind uplift testing it uses full scale roof sections measuring 12 feet by 24 feet to obtain an accurate view of.