Selecting Steel Floors

Construction Resilient system External wall inner leaf Thickness Robust Detail
Loadbearing
light steel frame
Timber
floating floor
Insulated steel frame with
masonry or weatherboard outer
347mm E-FS-2
Dry screed board Insulated steel frame
with masonry only outer
360mm E-FS-3
Reinforced
concrete frame
Timber
floating floor
Insulated steel or timber frame
Lightweight aggregate**
Dense aggregate***
Infill glazing units
347mm E-FC-2
Bonded
resilient layer
Insulated steel or timber frame
Lightweight aggregate**
Dense aggregate***)
Infill glazing units
343mm E-FC-10
Floating screed
or bonded
resilient layer
Insulated steel frame
or
Infill glazing units
433.2mm E-FC-18
Structural
steel frame
Timber
floating floor
Insulated steel or timber frame
Lightweight aggregate**
Dense aggregate***
Infill glazing units
317mm E-FS-1

KEY B.Regs
+ 3 dB
+ 5 dB
* Aircrete 450-800kg/m3
** Lightweight aggregate 1350-1600kg/m3
*** Dense aggregate 1850-2300kg/m3

Thickness quoted is the minimum possible to comply with the full Robust Details specification including floating floor treatment and ceiling treatment.

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for Floor/Wall Combinations
and Code for Sustainable Homes

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for Selecting Your Robust Details