Knauf Ceilings Topiq Alpha Board 20 Acoustic Ceiling Tile – 600 x 600mm
Product Code: JCS-KCTAB20
The Knauf Ceilings Topiq Alpha Board 20 is a lightweight 20mm mineral acoustic ceiling tile for high-performance acoustic ceiling tile installations. Manufactured from stone wool with a smooth laminated white surface, it delivers excellent sound absorption for commercial interiors where speech control, comfort and appearance matter.
With Class A sound absorption, Euroclass A1 fire reaction, 100% RH humidity resistance and 86% light reflectance, Topiq Alpha Board 20 is well suited to offices, education environments and large open-plan spaces.
Key Features
- 20mm thick stone wool acoustic ceiling tile
- Class A sound absorption with αw = 1.00 and NRC = 0.95
- Euroclass A1 fire reaction as per EN 13501-1
- 100% RH humidity resistance
- Smooth laminated white surface with 86% light reflectance
- Lightweight 2.6kg/m² construction for easier handling and installation
Applications
Topiq Alpha Board 20 is ideal for commercial suspended ceiling projects in offices, classrooms, universities, meeting rooms, open-plan workspaces and education buildings where strong acoustic absorption and a clean white ceiling finish are required.
Technical Specifications
- Product: Knauf Ceilings Topiq Alpha Board 20
- Box Quantity: 8 tiles
- Material: Stone wool mineral acoustic ceiling tile
- Surface: Smooth laminated white surface
- Thickness: 20mm
- Size: 600 x 600mm
- Edge Detail: Board / square edge
- System: Exposed demountable System C
- Weight: 2.6kg/m²
- Colour: White
- Sound Absorption: αw = 1.00 as per EN ISO 11654 – Class A
- NRC: 0.95 as per ASTM C 423
- Sound Attenuation: Dn,f,w = 27 dB as per EN ISO 717-1 / CAC = 28 dB as per ASTM E 413-10
- Sound Reduction: Rw = 13 dB as per EN ISO 717-1
- Fire Reaction: Euroclass A1 as per EN 13501-1 / Class A as per ASTM E 84
- Light Reflectance: 86%
- Humidity Resistance: 100% RH
- Clean Room Classification: ISO Class 4 as per EN ISO 14644-1
- Indoor Air Quality: A+, E1, IACG
- Sustainability: Verified, Blauer Engel UZ132
Useful Links
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Read the Knauf Topiq Alpha ceiling tile guide
Trade Customers
Ordering Topiq Alpha Board 20 for a school, office fit-out, refurbishment or multi-room ceiling project? We offer bulk pricing, project support and fast nationwide delivery for trade customers.
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Frequently Asked Questions
What is Topiq Alpha Board 20 used for?
Topiq Alpha Board 20 is used in exposed demountable suspended ceiling systems for offices, education buildings and large open-plan commercial spaces where Class A acoustic absorption is required.
What is the sound absorption rating of Topiq Alpha Board 20?
Topiq Alpha Board 20 achieves Class A sound absorption with αw = 1.00 as per EN ISO 11654 and NRC = 0.95 as per ASTM C 423.
Is Topiq Alpha Board 20 fire rated?
Topiq Alpha Board 20 has a Euroclass A1 fire reaction rating as per EN 13501-1 and Class A as per ASTM E 84.
Can Topiq Alpha Board 20 be used in humid areas?
Yes, Topiq Alpha Board 20 has 100% RH humidity resistance, making it suitable for demanding interior environments where humidity performance is required.
What grid system does Topiq Alpha Board 20 fit?
The Board edge version of Topiq Alpha Board 20 is designed for exposed demountable System C ceiling installations.
| Technical Data | |
| Size | 595mm x 595mm |
| Edge Detail | Board Edge |
| Thickness | 20mm |
| Box Quantity | 8 tiles per box |
| Box Coverage | 2.88m² |
| Light Reflectancy | 86% |
| Sound Absorption | EN ISO 354 αw = 0.95 as per EN ISO 11654 - Class A |
| Sound Attenuation | EN ISO 354 αw = 1.00 as per EN ISO 11654 - Class A |
| Humidity Resistance | Up to 100% RH |
| Clean Room Classification | ISO 4 as per EN ISO 14644-1 |
| Suitable Applications | Kitchens, Hallways, Offices, Changing Rooms |
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£107.86
Exc. VAT -
£89.88
Exc. VAT - 10 or more £106.50 £88.75
- 20 or more £103.81 £86.51
- 40 or more £102.46 £85.38
- Brand: Knauf Ceiling Solutions
- Product Code:JCS-KCTAB20
- Availability: In Stock
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