Crown Acoustic Floor Roll
Improve
the sound impact resistance of concrete floors - Remedial treatment
of existing timber floors
Description
Crown Acoustic Floor Roll is a resilient, glass mineral wool
roll faced on one side with a kraft paper/polythene laminate. Its
facing has a 75mm overlap along one edge to lap the edge of the
adjoining roll.
Application
Crown Acoustic Floor Roll is used for improving the impact sound
resistance of separating floors, specifically Type 2 separating
floors in Approved Document E.
The kraft paper/polythene laminate should face uppermost when
Crown Acoustic Floor Roll forms a resilient layer below a
screed.
Standards
The mineral wool of Crown Acoustic Floor Roll is a
non-combustible, inorganic glass wool, defined as mineral wool in
BS 3533: 1981 and is manufactured in accordance with BSI Quality
Assurance Standard BS EN ISO 9001: 2000.
Compressive Resistance
The table below shows the change in thickness of Crown Acoustic
Floor Roll when under applied loading.
| Floor surface |
Approx load in use
(kN/m2) |
Uncompressed thickness
(mm) |
Thickness under load
(mm) |
| Timber on battens |
20 (point load) |
25 |
8 |
| 65mm screed
(dwellings) |
3 |
25 |
15 |
| 75mm screed (non
domestic) |
3.25 |
25 |
15 |
All dimensions are nominal
Fire Performance
The base glass mineral wool of Crown Acoustic Floor Roll is
classified as non-combustible to BS 476: Part 4: 1970 (1984).
Acoustic Performance
Crown Acoustic Floor Roll meets the specification for a
resilient layer in a Type 2 floor construction as recommended in
Approved Document E 2003 of the Building Regulations, for
separating floors.
Used with the appropriate ceiling and floor surface treatments,
and a structural deck of the appropriate mass, this system has the
potential to provide the impact and airbourne sound insulation
requirements of Part E.
Post completion testing is still normally required to
demonstrate compliance.The acoustic performance depends on the mass
of the concrete, which needs to be at least 300
kg/m2.
- Excellent impact sound resistance
- Overlapping facing layer prevents wet screed from entering
mineral wool layer
Durability
The mineral wool of Crown Acoustic Floor Roll is odourless, rot
proof, nonhygroscopic, does not sustain vermin and will not
encourage the growth of fungi, mould or bacteria.
Environmental
Crown Acoustic Floor Roll is free from CFCs, HCFCs and any other
material with ozone depletion potential in its manufacture and
content and represents no known threat to the environment.
Crown Acoustic Floor Roll’s
manufacture has a low impact on the environment and is classified
as Zero ODP and Zero GWP.
Handling and Storage
Crown Acoustic Floor Roll is easy to handle and install, being
lightweight and easily cut to size.
It is supplied enclosed in polythene which is designed for short
term protection only. For longer term protection on site, the
product should either be stored indoors, or under cover and off the
ground.
Installation instructions are on every pack. Crown Acoustic
Floor Roll should not be left permanently exposed to the
elements.
Product Data
Crown Acoustic Floor Roll
| Thickness (mm) |
Length (m) |
Width (mm) |
Area per roll (m2) |
| 25 |
10 |
1200 |
12 |
All dimensions are nominal