Fm Global Roof Deck Attachment

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Fm global roof deck attachment.

If a specific fastening detail is required every 6 in. Structural concrete minimum 2 500 psi. 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. 1 5 1 2 0 91 and 0 75 mm thick steel roof deck to supporting steel thicknesses of greater than or equal to 0 125 in.

These values are in reference to mechanically attached insulation cover boards under. The research is also used to enhance external standards and codes. 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. 2 1 1 the x hsn 24 fastener is a powder actuated steel deck structural attachment fastener used in securing 16 18 20 and 22 gauge msg 0 0598 0 0474 0 0358 and 0 0295 in.

Steel deck performance is qualified by fm approval standard for steel deck 4451. Steel 22 gauge and heavier. 150 mm on center in the field of the roof use two of the same deck welds or fasteners in the same deck rib in the perimeter fm 1 29 2 2 3 4. This section contains reports that are generated to update national and international codes and standards.

Fm global s loss prevention data sheet 1 29 roof deck securement and above deck roof components issued february 2020 provides guidelines for steel roof deck attachment for fm insured buildings. The performance of an insulated steel deck roof depends in part on all components in the roof system makeup and on how they interact. Fm 1 29 s section 2 2 3 4 indicates one of two approaches a performance based approach or a prescriptive enhancement approach can be used. Factory mutual fm attachment layout examples.

Roof cover performance is evaluated in accordance with fm approval standard for class 1 roof covers 4470. Roofnav can take the guesswork out of configuring an fm approved roofing system leaving you to focus on what matters most. 3 2 mm but less than or equal to 0 375 in. In general fm approved decks include.

The support fastener pattern should be determined for the type of fastener desired using the rdnp determined above.