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Hush Therm 18 Underfloor Heating Board
Suitable for:
- domestic
- residential
- industrial
- education
- healthcare
- leisure
Hush Therm 18 is a pre-routered, high-mass gypsum fibre acoustic board designed to accept a 12mm underfloor heating pipe. As a dry screed solution, Hush Therm 18 provides integrated pipe channels for underfloor heating and cooling systems (Type A in accordance with DIN EN 1264), enabling rapid installation with reduced system height and weight.
When combined with the 5mm Hush FFR resilient acoustic layer, the system provides both efficient thermal transfer and proven acoustic improvement. Suitable for a wide range of internal applications, the system is non-combustible (A2 to DIN EN 13501-1) and supported by European Technical Assessment ETA-03/0050.
For advice on the use of Hush Therm 18 Underfloor Heating Board, as part of a system within any project, please contact our experienced technical team on 0151 933 2026 who will be happy to give comprehensive and practical advice to meet with your requirements.
Acoustic Performance - Typical Results*
Impact  dB |
Airborne  dB |
| 49 | 70 |
Product Data
- Board size: 1200mm x 600mm
- Thickness: 18mm routered board + 5mm Hush resilient layer
- Pipe spacing: 150mm (full occupancy)
- Milling depth: 12mm (for 12mm plastic UFH pipes)
Recommended Pipe
MKV multilayer pipe, 12mm diameter
Mass
- Therm 18 board: 19 kg/m²
- Round 18 board: 15 kg/m²
The datasheet lists the full tested assembly:
- 10mm Gypsum Fibre Dry Screed Panel
- Hush Therm pre-routered UFH board
- Routered sections at 138mm spacing
- 5mm Hush FFR resilient impact layer
- 15mm OSB subfloor
- 253mm deep posi timber joist @ 600mm centres
- 100mm Hush acoustic mineral wool slab
- 16mm Hush resilient bar @ 400mm centres
- Two layers 15mm Gyproc fireline board (or similar)
Use Hush technical guidance for:
- fixing templates
- screw fixings
- recommended adhesives
- installation sequencing
Use in wet rooms: Water impact class W0-I and W1-I (DIN 18534).
Designed to accept commercially available 12mm UFH pipes.
Full fitting instructions are supplied with all products and are available to download from the Installation Guides section.
Should you have any technical questions prior to or during installation, please call 0151 933 2026 for friendly and straightforward advice.
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