Class 1 the class 1 label is an exclusive designation that can only be awarded by fm global.
Roof nav class 1.
Roofnav is a free web based tool developed by fm approvals that provides fast access to the most up to date fm approved roofing products and assemblies.
Roofnav can take the guesswork out of configuring an fm approved roofing system leaving you to focus on what matters most.
Whether you are an architect.
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Building owners and some specifiers and designers don t realize that the ratings apply to uplift pressures in pounds per square foot psf not wind speeds.
According to the scope of fm 4470.
Roof navigator roofnav from fm approvals is the definitive source of up to date information on fm approved roofing assemblies and products.
Approval guide roofnav approval standards customer portal.
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Explosion and suppression wildcard.
Successful steel deck roofing assemblies are rated class 1 which indicates that if the roof was constructed as tested and approved by fm approvals it is an acceptable insurance risk from an internal fire viewpoint.
One common misconception is the belief that fm approvals windstorm classification ratings such as 1 60 1 90 or 1 120 correlate to wind speeds of 60 90 or 120 miles per hour mph.
Designed for roofing professionals roofnav will help you increase productivity provide higher customer satisfaction and generate more repeat business.
Roofnav is a complimentary tool from fm approvals that provides access to the most up to date fm approved roofing products and assemblies.
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Designed to help roofing professionals roofnav provides easy access to the most up to date fm approved roofing related information and related installation recommendations from relevant fm global property.
Fm class 1 requires that a roof deck assembly is subjected to a series of tests internal fire external fire wind uplift resistance foot traffic corrosion resistance impact resistance and susceptibility to heat damage as described in fm 4470 approval standard for class 1 roof covers.
Designed to help roofing professionals roofnav provides easy access to all roofing related information from the fm approvals approval guide and related installation recommendations from relevant fm global.