REINFORCED CONCRETE STEEL FRAME COMBINATIONS

SEPARATING WALLS	SEPARATING FLOORS
SEPARATING WALLS	E-FC-2	E-FC-10	E-FC-18	E-FS-1	E-FS-2	E-FS-3
E-WS-1	W ₁	W	W ₁	W ₁	✔	✔
E-WS-2	✔	W	✔	W	W	W
E-WS-3	W	W	W	W	W	W
E-WS-4	W ₁	W	W ₁	W ₁	✔	✔
E-WS-5	✔	✔	✔	W	W	W
E-WS-6	N/A - FOR HOUSES ONLY

KEY
W	Only the separating wall requires pre-completion sound testing.
1	Lightweight steel and timber frame walls may be constructed above in-situ poured concrete floors. The lightweight walls built directly off the concrete floors may be registerd as Robust Details provided: they meet all other requirements of the Robust Details, including flanking constructions the principles of the raft foundation junction are followed. As such, the concrete of the floor must have a mass of 365 kg/m2 (min), and a floating floor treatment must be provided. Walls constructed to the soffit of in-situ poured concrete floors can not be registered as Robust Details and may be subject to pre-completion sound testing.

KEY

Only the separating wall requires pre-completion sound testing.

Lightweight steel and timber frame walls may be constructed above in-situ poured concrete floors. The lightweight walls built directly off the concrete floors may be registerd as Robust Details provided:

they meet all other requirements of the Robust Details, including flanking constructions
the principles of the raft foundation junction are followed. As such, the concrete of the floor must have a mass of 365 kg/m2 (min), and a floating floor treatment must be provided.

Walls constructed to the soffit of in-situ poured concrete floors can not be registered as Robust Details and may be subject to pre-completion sound testing.

Decibel Ratings
E-xx-nn	Building Regs
	Invalid Combination
✔	Building Regs Combination