Fire Performance

Non-Combustible Load-Bearing Floor/Ceiling Assemblies - 2 Hour Fire Rated Systems

Carpet & Pad

System No.	DESCRIPTION Floor/ Ceiling Components	USG Design No.	U.L. Design No.	RAL No.
	Use USG Design No. links to view design detail PDF
1	FORTACRETE Panel Steel Joist, DWSS, Double Layer Drywall Ceiling	2DS910	G536/G557	RAL-OT06-016/017
2	LEVELROCK Underlayment FORTACRETE Panel Steel Joist, DWSS, Single Layer Drywall Ceiling	1DS1910	G536/G557	Shiner & Associates Field Test Results
3	FORTACRETE Panel Steel Joist, RC-1 Channel, Double Layer Drywall Ceiling	2RC910	G536/G557	RAL-TL06-165/IN06-007
4	FIBEROCK Underlayment FORTACRETE Panel Steel Joist, RC-1 Channel, Single Layer Drywall Ceiling	1RC3910	G536/G557	RAL-TL06-159/IN06-006
5	LEVELROCK Underlayment FORTACRETE Panel Steel Joist, RC-1 Channel, Single Layer Drywall Ceiling	1RC1910	G536/G557	Shiner & Associates Field Test Results

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ceramic tile

System No.	DESCRIPTION Floor/ Ceiling Components	USG Design No.	U.L. Design No.	RAL No.
	Use USG Design No. links to view design detail PDF
1	Isolation Membrane DUROCK Cement Board FORTACRETE Panel Steel Joist, DWSS, Double Layer Drywall Ceiling	2DS357	G536/G557	RAL-OT06-022/023
2	Isolation Membrane FIBEROCK Underlayment Acoustic Mat LEVELROCK Underlayment FORTACRETE Panel Steel Joist, DWSS, Single Layer Drywall Ceiling	1DS12357	G536/G557	Shiner & Associates Field Test Results
3	Isolation Membrane DUROCK Cement Board Acoustic Mat FORTACRETE Panel Steel Joist, DWSS, Single Layer Drywall Ceiling	1DS2357	G536/G557	RAL-TL06-186/IN06-010
4	Isolation Membrane FIBEROCK Underlayment LEVELROCK Underlayment FORTACRETE Panel Steel Joist, DWSS, Single Layer Drywall Ceiling	1DS1357	G536/G557	Shiner & Associates Field Test Results

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Engineered Wood

System No.	DESCRIPTION Floor/ Ceiling Components	USG Design No.	U.L. Design No.	RAL No.
	Use USG Design No. links to view design detail PDF
1	Isolation Membrane FORTACRETE Panel Steel Joist, DWSS Double Layer Drywall Ceiling	2DS58	G536/G557	RAL-OT06-014/015
2	Isolation Membrane LEVELROCK Underlayment FORTACRETE Panel Steel Joist, DWSS Single Layer Drywall Ceiling	1DS158	G536/G557	Shiner & Associates Field Test Results