Flooring system

Incorporating the latest changes to the Approved Document E 2003, the minimum and maximum sound insulation requirement for separating floors are as follows:

To comply with the requirements of the Approved Document E 2003, R10 sound insulated separating floors have been tested in accordance with BSEN ISO 717-1997 and BSEN ISO 717:1997. Substituting the 25mm mineral wool floating layer normally specified with a more stable and efficient recycled rubber resilient layer. 10mm thick sound absorbing RWS R10 nominal weight 3kg/m² is installed onto timber suspended floors as detailed below. Note: Existing or new square edged timber floor should be overlaid with our SBM5 before installing the R10

With a floating layer of 19mm thick QuietBoard cement impregnated t&g chipboard -placed on top of the R10 acoustic insulation as shown above, the following test result was recorded:

Airborne D_nT,w+C_tr   45dB   Impact L_nTw    61dB

HICH MEETS THE NEW CHANGE OF USE, CONVERSION AND NEW BUILD REQUIREMENTS

For timber suspended separating floors requiring a greater degree of sound insulation, the floating floor can be replaced with two layers of 12mm cement impregnated chipboard as shown overleaf.

ite testing of the above described construction gave the following results

Airborne D_nT,w+C_tr   48dB   Impact L_nTw    61dB

WHICH MEETS THE NEW CHANGE OF USE, CONVERSION AND NEW BUILD REQUIREMENTS

RWS ACOUSTICEL R10 APPLIED TO CONCRETE FLOORS

Provided the total mass of the concrete is equal to 300kg/m2, the finished structure should be found to comply with the requirements of the Approved Document E 2003 for airborne sound insulation. Impact noise reduction on a lightweight beam and block concrete floor using RWS R10 resilient insulation and 18mm t&g timber floating floor is detailed overleaf

Impact L_n,w,   60dB

WHICH MEETS THE NEW CHANGE OF USE, CONVERSION AND NEW BUILD REQUIREMENTS

This performance would be further enhanced if a floating layer of 65mm sand cement screed is installed instead of the timber floor.

All of the previously described constructions meet the new separating floor sound insulation requirements for both airborne and impact noise.

Key Benefits Environmentally friendly - produced from recycled vehicle tyres
Reduced increase in floor height
Only 10mm thick so less of an increase in finished floor height
Very stable and more efficient than a mineral wool alternative
Easy to install with no specialist knowledge required.
Always available from stock and free delivered all over the country on a 3 day service
Free telephone advice always available during our normal business hours