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FMAPPROVAL 4470

Single-Ply, Polymer-Modified Bitumen Sheet, Built-Up Roof (BUR) and Liquid Applied Roof Assemblies for Use in Class 1 and Noncombustible Roof Deck Construction

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Organization: FM
Publication Date: 1 December 2016
Status: active
Page Count: 29
scope:

This standard applies to all single-ply, polymer-modified bitumen sheet, BUR and liquid applied roof assemblies intended to protect the building and its occupancy from the weather elements of nature.

The performance of a roof assembly depends on all components that make up the assembly, beginning with the deck and its securement to the structure to the uppermost layer exposed to the weather. It is therefore necessary to evaluate the entire roof assembly as a single entity.

This standard is intended to evaluate only those hazards investigated and is not intended to determine suitability for the end use of a product.

This standard evaluates single-ply, polymer-modified bitumen sheet, BUR and liquid applied roof assemblies for their performance in regard to fire from above and below the structural deck, simulated wind uplift, susceptibility to hail storm damage, water leakage, foot traffic, corrosion of metal parts, , susceptibility to heat damage, puncture resistance (optional) and solar reflectance (optional). An optional noncombustible core rating for roof insulation is also included.

Purpose

This standard states Approval requirements for single-ply, polymer-modified bitumen sheet, built-up roof (BUR) and liquid applied roof assemblies.

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 surveillance program.

Document History

FMAPPROVAL 4470
December 1, 2016
Single-Ply, Polymer-Modified Bitumen Sheet, Built-Up Roof (BUR) and Liquid Applied Roof Assemblies for Use in Class 1 and Noncombustible Roof Deck Construction
This standard applies to all single-ply, polymer-modified bitumen sheet, BUR and liquid applied roof assemblies intended to protect the building and its occupancy from the weather elements of nature....
April 1, 2010
Single-Ply, Polymer-Modified Bitumen Sheet, Built-up Roof (BUR), and Liquid Applied Roof Assemblies for Use in Class 1 and Noncombustible Roof Deck Construction
This standard applies to all single-ply, polymer-modified bitumen sheet, built-up roof (BUR) and liquid applied roof assemblies intended to protect the building and its occupancy from the weather...
April 1, 1986
Class 1 Roof Covers
A description is not available for this item.

References

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