Description
An acoustic rock mineral wool slab bonded with a high performance
binder, suitable for use in many applications
including floors, walls, ceilings, roofs and many others.
Dense Fibre Matting (DFM) products are manufactured to a higher density
than other mineral wool slabs and provide
improved acoustic control across a wide range of frequencies.
Effective sound Insulation is essential requirement for modern life
styles. Excessive noise can increase stress, hinder
speech and can cause its own form of environmental pollution.
DFM has been proven over many years to be the ideal insulation material
for all applications where noise attenuation
or noise absorption is needed; in domestic, commercial, manufacturing,
industrial and environment situations. In
addition to its acoustic properties, its well known thermal insulation
and fire protection performance are inherent benefits.
This product is ideal for use as a stand alone infill in stud framework
of walls, floor joists and occasionally suspended ceilings. Its main purpose is to reduce airborne noise.
These slabs should not be confused with thermal insulation which
comes in roll form. Typical thermal insulation will
only have a density of approximately 15kg/m3. We supply and recommend
the slab form only, which can vary in
density, but starts at a minimum of 100kg/m3. This density is the
key to the superior reduction which the acoustic
mineral wool provides over the thermal ‘roll’ insulation.
An acoustic rock mineral wool slab bonded with a high performance
binder. Benefits include:
- Non flammable
- Chemically inert
- Rot proof
- Will not encourage any bacteria, mould or fungi growth and it
does not sustain vermin
Test results can vary but it has been successfully and constantly
found that DFM can provide reductions of between
150 - 300% when used in studwork, floor/ceiling joists and under
roof structures.
Absorption Co efficiency
Material
|
Thickness |
Mounting |
Frequency
125 Hz |
250Hz |
500 Hz |
1 K |
2K |
4K |
| DFM 100kg |
20mm |
Solid backing |
0.05 |
0.30 |
0.70 |
0.95 |
1.05 |
1.00 |
| DFM 100kg |
40mm |
Solid backing |
0.12 |
0.44 |
0.88 |
1.00 |
1.00 |
1.00 |
| DFM 100kg |
50mm |
Solid backing |
0.35 |
0.85 |
1.10 |
1.10 |
1.15 |
1.10 |
| DFM 100kg |
75mm |
Solid backing |
0.44 |
1.00 |
1.00 |
1.00 |
1.00 |
1.00 |
Thermal Conductivity
Thermal
conductivity W/mK
at various mean
temperatures |
10°C |
100°C |
200°C |
300°C |
400°C |
| 0.034 |
0.046 |
0.065 |
0.090 |
0.123 |
Compression Strength
10 kN/m² (compression 10%)
Maximum Service Temperature
+600°C
Fire Rating
Non Combustible Building Material
Storage
Keep dry and laid flat.
Hazard Identification
May cause temporary skin irritation. High dust levels may irritate
the throat or eyes.
Ecological Information
Stable product with no known adverse environmental effects.
Toxicological Information
Not classified as a carcinogen under the EU Dangerous Substances
Directive 67/548/EEC and Directive 97/69/EC.
No link between exposure to mineral wool fibres and lung disease
in production or user industries.
No chronic effects usually associated with skin or eye contact.
|
