Iw03-04-Metal Stud Partition
Metal C-Stud Partition Walls
Iw03
Product*: 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
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
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 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
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.
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
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 Acoustic Partition Roll*/Rocksilk Flexible Slab*, …...mm thick.
Secure 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 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 Acoustic Partition Roll |
42 |
1/2 |
| 70mm C Stud |
600 c/s |
15mm Knauf
Drywall Fireshield each side
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25mm Acoustic Partition Roll |
49 |
1 |
| 600 c/s |
2 layers of 12.5mm Knauf
Drywall Soundshield each side
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25mm Acoustic Partition Roll |
54 |
1 |
| 600 c/s |
2 layers of 12.5mm Knauf
Drywall Fireshield each side
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50mm 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 |