Siderise Tissue Faced Stone Wool Acoustic Lining Slab (ALS)
A black glass tissue faced stone wool slab used for acoustic treatment on walls and ceilings/soffits.
Acoustic lining systems for internal applications
The Siderise Acoustic Lining Sheets are engineered for use in environments where acoustic absorption treatment is required such as auditoria, public buildings, commercial buildings, plant rooms and cinemas. Made from resin-bonded stone wool with a durable black non-woven glass tissue facing, these sheets deliver effective sound absorption and thermal insulation, helping to create quieter, more comfortable spaces.
Ideal for different acoustic wall or ceiling/soffit applications in areas such as auditoria, public buildings, commercial buildings, plant rooms, cinemas, etc.
Acoustic performance is tested to BS EN20354:1993, ISO354:. αW: 0.90 (at thicknesses >50mm)
Constructed with a stone wool core, the product provides thermal insulation with a measured thermal conductivity of 0.034 W/mK, as tested in accordance with EN 12667.
The product has been tested to EN 13501-1:2019 and achieves a classification of A2-s1,d0.
This classification aligns with the internal fire spread requirements for wall and ceiling linings set out in the current edition of the UK Building Regulations Approved Document B.
The black non-woven glass tissue facing helps to prevent fibre shedding from the mineral wool core. The facing is applied by an open structured adhesive to provide optimum and consistent sound absorbing properties.
Siderise ALS acoustic lining slab was developed to provide acoustic absorption for walls and ceilings/soffits. Siderise ALS acoustic lining slab can be used in many different applications such as; auditoria, public buildings, commercial buildings, plant rooms and cinemas. Siderise ALS acoustic lining slab is supplied with a plain black glass tissue facing, typically a secondary aesthetic finish is installed to suit the application. Typical uses include:
- Walls, post covered with stretched fabric or loose fabric (e.g., pleated or hanging drapes)
- Walls, post covered with spaced slats, slotted or perforated timber, or perforated metal sheet
- Soffits, with perforated ceilings or semi exposed ceilings with decorative panels
- Plant room walls and ceilings, retained behind perforated metal sheet (25% or 33% open area)
- Rear of screen areas in Cinemas (Wall / Ceiling surfaces)
Siderise ALS acoustic lining slab is a resin bonded stone wool sound absorbing base material, faced on the exposed surface with a black non-woven glass fabric. The facing is applied by an open structured adhesive to provide consistent sound absorbing properties. The black glass tissue facing helps to prevent fibre shedding from the face of the stone wool.
Sizes and fixing requirements
Depending on the size and thickness of Siderise ALS acoustic lining slab used, and the orientation, the number of fixings required will alter.
The information in Table 1 is offered as guidance only.
Table 1: Sizes and fixing requirements
| Product Ref. | Thickness (mm) | Orientation | Hangers Qty |
|---|---|---|---|
|
ALS |
50 |
Vertical (Wall) |
9 (PP1 or IH3) |
|
ALS |
50 |
Horizontal (Ceilings) |
12 (IH3) |
|
ALS |
100 |
Vertical (Wall) |
12 (IH3) |
- PP1 comprises two black polymer components; a perforated base plate with projecting pin and a non-return washer.
- IH3 is similar to PP1 except that the components are galvanised mild steel.
- For horizontal (soffit & ceiling) installations , we recommend suitable mechanical fixings into the substrate (to be advised by others) and metallic hangers.
For vertical (wall) installations , Siderise Ad-Pin Adhesive is suitable for fixing hangers.
For further details please refer to ‘Siderise ALS Fixing Guidance Notes’
In terms of 'Reaction to Fire', the products are classified to EN 13501-1:2019. See Table 2.
Table 2 - Reaction to Fire performance
| Product Ref. | Classification |
|---|---|
|
ALS |
A2-s1, d0 |
The product’s acoustic performance is tested in accordance with BS EN 20354:1993, ISO 354. Octave band Sound Absorption Coefficients for various grades of the product are given below in Table 3.
Table 3 – Acoustic performance Sound Absorption Coefficients
| Product Ref. | Thickness (mm) | 125Hz | 250Hz | 500Hz | 1kHz | 2kHz | 4Khz | αW | NRC | Absorption Class |
|---|---|---|---|---|---|---|---|---|---|---|
|
ALS |
50 |
0.20 |
0.60 |
1.04 |
1.09 |
1.05 |
1.02 |
0.90 |
0.95 |
A |
|
ALS |
100 |
0.62 |
1.13 |
1.19 |
1.10 |
1.07 |
1.02 |
1.00 |
1.10 |
A |
Thermal conductivity, λ, tested to EN 12667: 0.034 W/mK
Table 4 : ALS Product Properties
| Properties | Value |
|---|---|
| Form supplied | Sheets 1200mm x 1000mm |
| Colour | Black |
| Finish | Glass fibre tissue |
| Thickness | 50mm, 100mm |
| Surface weight | 3.9kg/m² (50mm), 7.6kg/m²(100mm) |
| Density | Nominal 75kg/m³ |
| Resistance to fire | None |
| Reaction to fire | Class A2-s1,d0 to EN 13501-1:2018 - see Table 1 |
Products available
The following Siderise Building Acoustics products are available:
- Siderise ALS acoustic lining slab
- Siderise AVC acoustic void closures for tops of walls
- Siderise BM/P10 series barrier mat
- Siderise CBX flexible acoustic barriers
- Siderise CVB/LAM acoustic barriers for suspended ceilings
- Siderise CVB/P10 acoustic barriers for suspended ceilings and raised access floors
- Siderise FIP façade interface panel
- Siderise FLX foam based flexible acoustic barriers
- Siderise MC mullion cover
- Siderise MI Mullion/Transom Inserts
- Siderise RF Cavity Barrier and Firestop for Raised Access Floors
Contact us for a copy of our building acoustics range brochure.
Contact us for further information on our CPDs
Technical & Sales support
For further information and advice, please contact:
Technical support: Technical Team,+44(0)1473 827695, [email protected]
Sales support: Internal Sales Team ,+44(0)1473 827695, [email protected]
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