The assembly which exhibits low fire spread below and above the panel adequate simulated wind uplift resistance and adequate strength and durability during the approval examination will qualify as a class 1 assembly.
Fm global class 1 roof.
Approval standard fm 4470single ply polymer modified bitumen sheet built up roof bur and liquid applied roof assemblies for use in class 1 and noncombustible roof deck construction approval standard fm 4471class 1 panel roofs approval standard fm 4475class 1 steep slope roof covers approval standard fm 4476flexible photovoltaic modules.
1 1 2 approval criteria may include but are not limited to performance requirements marking requirements examination of manufacturing facility ies audit of quality assurance procedures and a follow up program.
According to the scope of fm 4470.
We also know that in order to create change we must look inward.
The performance of a panel roof depends in part on all.
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It will be a long journey and we are prepared to stay the course for as.
Class 1 the class 1 label is an exclusive designation that can only be awarded by fm global.
The class 1 rating is an exclusive designation that can only be awarded by fm global which indicates the successful testing of the entire roof assembly using fm approval standard 4470.
To be rated as a class 1 panel roof assembly only class 1 approved components may be used.
A class 1 panel roof is one which meets the criteria of this standard for fire wind foot traffic and hail damage resistance.
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.
This standard applies to any component intended for use in assembling a panel roof including metal and plastic panel roofs.
Roofnav can take the guesswork out of configuring an fm approved roofing system leaving you to focus on what matters most.
The research is also used to enhance external standards and codes.
This test is significant as it indicates the successful testing of the entire roof assembly using fm approval standard 4470.
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.
The standard applies to all components as assembled in the system below the roof cover.
However in many instances these non fm global insured buildings do not meet fm approvals minimum requirement for roof decks etc yet the designer still calls for an fm approved system.
The best rating achieved is class a which is described by ul as effective against severe fire exposure class 1 rating.
This section contains reports that are generated to update national and international codes and standards.
