|
|
|
|
| In
the following charts all plasterboard joins and edges are sealed with an
appropriate acoustic sealant. The figures given below are based on all surfaces
being sealed to airtight. |
|
| TIMBER
STUD |
STC
RATING
|
|
| Standard
stud wall with one layer of 16mm (5/8") Plasterboard |
No
Insulation 28
|
|
| Typical
wall construction with 1 layer of 16mm(5/8") Plasterboard on each side
of 95x35mm (4 x 11/2") timber studs. |
No
Insulation 35
With
Insulation 38
|
|
| Typical
wall construction with 2 layers of 16mm(5/8") Plasterboard on each
side of 95x35mm (4 x 11/2") timber studs. |
No
Insulation 41
With
Insulation 45
|
|
|
The Flexible Channel
Single 95x35mm (4"x2")Stud
wall with 1 layer of 16mm (5/8") Plaster board on one side and 1
layer of 16mm on the other side on a horizontal flexible channel at 600mm
(2ft) centres screwed to the stud.
|
No
Insulation 40
With
Insulation 47
|
|
| Staggered
stud wall construction with 1 layer of 16mm(5/8") Plasterboard on studs
of 95x35mm (4 x 11/2") on a 120mm (4 3/4")common base. |
No
Insulation 42
With
Insulation 48
|
|
| Staggered
stud wall construction with 2 layers of 16mm(5/8") Plasterboard on
studs of 95x35mm (4 x 11/2") on a 120mm (4 3/4")common base. |
No
Insulation 50
With
Insulation 54
|
|
| Staggered
stud wall construction with 3 layers of 16mm(5/8") Plasterboard on
studs of 95x35mm (4 x 11/2") on a 120mm (4 3/4")common base. |
No
Insulation 56
With
Insulation 61
|
|
| BRICK
VENEER |
| The
typical Brick Veneer construction with a layer of 10mm (3/8") plasterboard.
This is the standard Australian house construction.
|
No
Insulation 53
With
Insulation 55
|
|
| Brick
Veneer construction with a layer of 16mm (5/8") plasterboard. |
No
Insulation 54
With
Insulation 56
|
|
|
STEEL
STUD
|
|
1 layer of 16mm (5/8")
plasterboard each side of a steel stud.
Stud sizes
- 51mm
- 64mm
- 76mm
- 92mm
- 150mm
|
No
Insulation
|
With Insulation
|
|
|
2 layers of 16mm (5/8")
plasterboard each side of a steel stud.
Stud sizes
- 51mm
- 64mm
- 76mm
- 92mm
- 150mm.
|
No
Insulation
|
With Insulation
|
|
|
3 layers of 16mm (5/8")
plasterboard each side of a steel stud.
Stud sizes
- 51mm
- 64mm
- 76mm
- 92mm
- 150mm.
|
No
Insulation
|
With Insulation
|
|
|
1 layer of 16mm (5/8")
plasterboard each side of a staggered steel stud.
|
No
Insulation
|
With Insulation
|
|
2
layers of 16mm (5/8") plasterboard each side of a staggered steel
stud.
|
No
Insulation
|
With Insulation
|
|
3
layers of 16mm (5/8") plasterboard each side of a staggered steel
stud.
|
No
Insulation
|
With Insulation
|
|
| Double
steel studs opposite each other with 2 layers of 16mm (5/8") plaster
board on each side.(Insulation is 125mm (5") glass wool 25kg/m2) |
No
Insulation 55
With
Insulation 59
|
|
| Single
150mm (6") Steel stud with 3 layers of 13mm (1/2") plasterboard
on one side and on the other side another 3 layers on a flexible channel
screwed horizontally onto the steel stud. (Insulation is 125mm (5")
glass wool 25kg/m2) |
No
Insulation 55
With
Insulation 64
|
|
| BRICK
and CONCRETE BLOCK |
| Standard
house brick unrendered. |
39
|
|
| House
brick rendered both sides (13mm (1/2") 1:1:6,Cement:Lime:Sand) |
45
|
|
| 8"
Concrete Block, hollow core, no wall finish |
45
|
|
| 8"
Concrete Block , hollow core, painted 2 coats, 2 sides |
48
|
|
| CEILINGS
|
|
1 x Layer of 16mm
(5/8") Plasterboard fixed to a flexible channel fixed at 400mm (16")
centres.
(a)
45
(b)
49
(c)
45
|
|
|
2 x Layers of 16mm
(5/8") Plasterboard fixed to a flexible channel fixed at 400mm (16")
centres.
(a)
56
(b)
58
(c)
55
|
|
|
3 x Layers of 16mm
(5/8") Plasterboard fixed to a flexible channel fixed at 400mm (16")
centres.
(a)
56
(b)
59
(c)
55
|
|
| |
|
|
|
I
am indebted to the people at Boral for their excellent web page and the
TecSYS CDROM they sent me free for the figures presented above for plasterboard
installations.
|
