Building Construction Handbook, Eighth Edition

The Approved Document to Building Regulation E2 provides for

internal walls and floors located between a bedroom or a room

containing a WC and other rooms to have a reasonable resistance

to airborne sound. Impact sound can be improved by provision of a

carpet.

Typical details ~

75mm min. timber frame

45mm min. metal frame

2 layers of 12.5 mm

plasterboard each side,

min. mass 10kg/m^2

each sheet

Min. mass

120kg/m^2

Plaster finish

or plasterboard

each side

CONCRETE

BLOCKWORK PARTITION

TRADITIONAL SUSPENDED

TIMBER FLOOR

100mm min.

mineral wood

min. density

10kg/m^3

STUD PARTITION

1 layer of

plasterboard

as adjacent

detail

25mm min.

mineral wool

min. density

10kg/m^3

sw or woodboard

(22mm) decking

min. mass

15kg/m^2

12.5mm

plasterboard

ceiling, min.

mass 10kg/m^2

SUSPENDED CONCRETE FLOORS (See page 674)

Cored plank ~ min. mass 180 kg/m^2 with any top surface and

ceiling finish.

Precast beam and filler block (pot) ~ min. mass 220 kg/m^2 with

40 mm bonded screed and 12.5 mm plasterboard ceiling on battens.

Sound Insulation--Internal Walls and Floors (Dwellings)