Fm Global Roof Deck

This standard states factory mutual research requirements for approval of class i insulated steel roof decks.

Fm global roof deck.

203 mm rib module. We also know that in order to create change we must look inward. Meets maximum class 1 90 or per proprietary listings. Allowable fm deck span charts for windstorm ratings less than 1 105 are based upon numerous limit states defined in fm class 4451 approval standard which include.

For 3n 3ni 3np 3na 3npa and 3nia steel roof decks above deck component fastener spacing is reduced as described in the following table to accommodate the 8 in. Fm global property loss prevention data sheets. In january fm global significantly re vised its property loss prevention data sheet 1 29 roof deck securement and above deck roof components this data sheet is intended to provide fm global s recommendations for secure ment of roof decks to roof structures and the proper design and installation of above deck roof components insula tion membrane you need to be aware of the revisions because they may affect roof system design and limit the use of some products and systems. Fm global is a commercial and industrial property insurance company that according to its website is guided by the belief that most losses can be prevented.

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 loss prevention data sheets. The standard applies to all components as assembled in the system below the roof cover. Fm global donates us 500 000 to equal justice initiative although money doesn t solve all problems fm global will invest in solutions that require funding to make our communities better places for all. The research is also used to enhance external standards and codes.

Your roof needs replaced. 610 610 mm could use a spacing of 14 24 in. Your insurance provider is fm global. Membrane width 1 2 deck span.

This section contains reports that are generated to update national and international codes and standards. A point attached system with fm approved fastener spacing for class 1 90 of 24 24 in. Roofnav can take the guesswork out of configuring an fm approved roofing system leaving you to focus on what matters most. It will be a long journey and we are prepared to stay the course for as.

The roof cover is tested in accordance with factory mutual research approval standard 4470. Equal to one half of the deck span is applied per proprietary listings. Roof deck securement and above deck roof components. Fm approved above deck component.

Refer to the use of steel roof decks and fasteners throughout listings for details and limitations. 200 lb construction and maintenance deck stress and deflection uplift deck stress fastener tensile capacity and. 356 610 mm in the perimeter. Fm global is influencing our industry tremendously by codifying or standardizing roof designs mandating safer fire and wind rated roofs.

A class i insulated steel roof deck is one which meets the criteria of this standard for fire wind uplift live load resistances corrosion of metal parts and fatigue of plastic parts.