Iw03-04-Metal Stud Partition-
Metal C-Stud Partition Walls
Iw03
Product*: Crown Acoustic Partition Roll
Description: Glass wool insulation
friction-fitted between timber studs
Iw04
Product*: Rocksilk Flexible Slab
Description: Rock mineral wool insulation
friction-fitted between timber studs
Advantages
Crown Acoustic Partition Roll
- Robust product which provides a high level of sound
absorption
- Provides thermal insulation
- Improves sound insulation of partition
Rocksilk Flexible Slab
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Products
Crown Acoustic Partition Roll is a flexible,
resilient, roll of glass mineral wool.
Rocksilk Flexible Slab is a flexible stone mineral
wool slab designed for friction fitting.
Typical construction
A metal stud partition infilled with Crown Acoustic Partition
Roll and faced each side with plasterboard. The fire and sound
performance of the partition depends on specification – see table
91.
The partition should be sealed with an acoustic sealant at its
perimeter and at all service penetrations.
Installation
Installation Construct the steel frame and apply a bead of
acoustic sealant to the back of the steel studs that are fixed to
the surrounding structure. Board out one side of the partition
before inserting the insulation.
Crown Acoustic Partition Roll is designed to friction fit
between metal studs at 600mm centres. Support the roll at the head
of the partition by means of a timber batten or light steel angle.
For maximum acoustic performance, hang the quilt in the centre of
the partition void and fit snugly up against the studs on both
sides.
Board out the second side and finish using standard drylining
techniques.
Performance
Acoustic performance
Table 91 shows typical sound reduction figures.
Fire performance
Crown Acoustic Partition Roll and Rocksilk Flexible Slab are
classified as Euroclass A1, to BS EN ISO 13501-1. See Table 94 for
fire performance.
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Typical specification
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In all …... (steel stud) partitions install acoustic insulation
of Crown Acoustic Partition Roll*/Rocksilk Flexible Slab*, …...mm
thick. Secure Crown Acoustic Partition Roll*/Rocksilk Flexible
Slab*l at head of partition using timber batten or light steel
angle. Insulation to fit snugly between studs and at bottom of the
structure to ensure that there are no air gaps. Seal partition at
perimeter and all service penetrations with an acoustic
sealant.(*Delete as appropriate)
Alternatively, consult the National Building Specifications
(NBS) based on Standard Version K10/125. It contains a set of
proprietary clauses, which are edited versions written by Knauf
Insulation.
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Typical section
Table 94: Sound
insulation of stud partitions using Crown Acoustic Partition
Roll
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Solution
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Stud Type
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Stud Spacing(mm)
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Facing
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Infill
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RwdB
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Fire Resistance (hrs)
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| Iw03 |
50mm C Stud |
600 c/s |
12.5mm Knauf Drywall
Wallboard each side
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25mm Crown Acoustic Partition
Roll |
42 |
1/2 |
| 70mm C Stud |
600 c/s |
15mm Knauf
Drywall Fireshield each side
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25mm Crown Acoustic Partition
Roll |
49 |
1 |
| 600 c/s |
2 layers of 12.5mm Knauf
Drywall Soundshield each side
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25mm Crown Acoustic Partition
Roll |
54 |
1 |
| 600 c/s |
2 layers of 12.5mm Knauf
Drywall Fireshield each side
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50mm Crown Acoustic Partition
Roll |
54 |
2 |
| Iw04 |
50mm C Stud |
600 c/s |
12.5mm Knauf Drywall
Wallboard each side
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25mm Rocksilk Flexible Slab
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42* |
1/2 |