Fm Global Roof Drainage Requirements

All canales and scuppers must have positive drainage.

Fm global roof drainage requirements.

Design live load of the roof. All canales and or scuppers must have a metal pan lining extending not less than 6 inches 152mm past the inside of the parapet and not less than 6 inches 152mm from each side of the canale or scupper opening. Install wood cants that are not pressure treated against decay around parapet perimeters. Dropping from the 5 drain in the table to a 3 drain cuts the serviced or drainable roof area to about 0 26 x the roof areas shown in the table.

Roofnav i s recommended for the selection of fm approved roof assemblies. Fm approved pv modules are recommended to fm global clients worldwide the hazards as energy costs rise and pressure mounts to offset or reduce greenhouse gas emissions a growing number of corporations utilities and municipalities are turning to photovoltaic pv systems to turn sunshine directly into electricity. Here s what that means. You have to sign up in order to view data sheets on the fm global website but it s free and definitely worth your time.

Thereby adhering to factory mutual requirements is of utmost importance when working on the roof of an fm global insured building. Fm global conducts research for use in the data sheets that our engineering field staff use to support our client s efforts to protect their business. For guidelines on designing roof drainage systems see fm global s ds 1 54 roof loads for new construction data sheet. 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.

Your roof needs replaced. Reference fm global data sheet 1 54 3. Refer to the nrca roofing manual and fm global property loss prevention data sheets. This section contains reports that are generated to update national and international codes and standards.

Your insurance provider is fm global. 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. Roofnav can take the guesswork out of configuring an fm approved roofing system leaving you to focus on what matters most. Roof specifications and roofnav assembly number fm global form 2688 application for acceptance of roofing systems should be completed for each type of roof covering system for each building.

Since reroofing represents roughly seventy percent of the roofing contracts in the market each year we ll use it as a case study to illustrate the detailed knowledge required to meet factory mutual standards. A common mistake made when these documents are not followed is that roof edge fascias end up being inadequately secured says judd peterson aia president of judd allen group edina minn.