Building Construction Handbook, Eighth Edition

Panel materials † B

(i) Plasterboard with cellular core plus plaster finish, mass 18 kg/m^2.

All joints taped. Fixed floor and ceiling only.

(ii) 2 No. plasterboard sheets, 12„5 mm each, with joints staggered.

Frame support or 30 mm overall thickness.

Absorbent material † quilting of unfaced mineral fibre batts with a

minimum density of 10 kg/m^3 , located in the cavity or frames.

Core material A Density of A

[kg/m^3 ]

Mass A

(kg/m^2 )

Thickness C

(mm)

Coursing D

(mm)

Cavity

(mm)

brickwork 1290 300 215 75 n/a

concrete block 2200 300 140 110 n/a

lwt. conc. block 1400 150 200 225 n/a

Cavity bkwk. or

block

any any (^2) ¾ 100 to suit 50
Thickness (mm) Location
25 Suspended in cavity
50 Fixed within one frame
(^2) ¾ 25 Each quilt fixed within each frame
Sound Insulation---Walls