Knauf Ceilings Topiq Alpha 15 Tegular15/90 Acoustic Ceiling Tile – 600x600mm (White)
Product Code: JCS-KCTA1590
Manufacturer Code: 861274
The Knauf Ceilings Topiq Alpha 15 Tegular15/90 is a high-performance acoustic ceiling tile designed with a **rebated Tegular edge for 15mm grids**, offering a premium finish with enhanced shadow gaps. Featuring Class A sound absorption, full humidity resistance, and ISO 5 cleanroom compliance, this 600x600mm tile is suitable for commercial, educational, and healthcare interiors.
With a lightweight mineral construction, fleece-laminated surface, and A1 fire rating, it’s engineered for environments where performance and finish are equally critical.
Key Features
- Class A sound absorption (αw = 0.95, NRC = 0.90)
- Fire Rated: Euroclass A1 / ASTM E84 Class A
- Designed for 15mm exposed ceiling grids
- 100% RH resistance for high humidity spaces
- ISO Class 5 cleanroom compliant
Fast Delivery Available
This tile is a stocked item and can be delivered as soon as next working day across most of the UK. For urgent delivery or bulk pricing, please email orders@judge-ceilings.co.uk.
Download Product Data Sheet
Download the official Knauf Ceilings Topiq Alpha specification sheet with performance data and technical certifications below:
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Frequently Asked Questions
What is the sound absorption rating?
The tile delivers Class A acoustic absorption with αw 0.95 and NRC 0.90. It's ideal for reducing reverberation in busy environments.
What fire performance does it offer?
This tile is Euroclass A1 fire rated under EN 13501-1 and also meets ASTM E84 Class A standards.
What grid type is it for?
The Tegular15/90 version is designed for 15mm exposed grid systems and sits slightly below the grid to create a clean recessed edge effect.
Do you offer fast delivery?
Yes – this is a stocked line and can be delivered next working day across most UK regions. Email us to confirm.
| Technical Data | |
| Size | 595mm x 595mm |
| Edge Detail | Microlook Edge |
| Thickness | 15mm |
| Box Quantity | 14 tiles per box |
| Box Coverage | 5.04m² |
| Light Reflectancy | 86% |
| Sound Absorption | EN ISO 354 αw = 0.95 as per EN ISO 11654 - Class A |
| Sound Attenuation | EN ISO 10848-2 Dn,f,w = 24 dB as per EN ISO 717-1 CAC = 25 dB as per ASTM E 413-10 |
| Humidity Resistance | Up to 100% RH |
| Clean Room Classification | ISO 5 |
| Suitable Applications | Kitchens, Hallways, Offices, Changing Rooms |
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£126.73
Exc. VAT -
£105.61
Exc. VAT
- Brand: Knauf Ceiling Solutions
- Product Code:JCS-KCTA1590
- Availability: In Stock
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