AmbiDeck® 18
Low-Profile System
AmbiDeck® 18
AmbiDeck® 18 is a low‑profile underfloor heating (UFH) system designed for rapid installation over both solid and timber floors, offering a slim 18mm build‑up while incorporating a high‑density insulation layer. The cement‑coated surface provides a rigid, durable platform that can be tiled directly, making the system ideal for refurbishment and fast‑track projects where minimal floor height increase is essential.
The precision‑grooved 18mm XPS panels accept 12mm AmbiFlex® P12 pipe, with universal radius returns machined into each board. Additional pipe channels can be easily routed on site where required, offering full flexibility during installation. Certified to BS EN 1264‑2:2021, AmbiDeck® 18 delivers robust thermal performance and long‑term reliability.
When laid on a concrete floor, the panels are adhered using flexible tile adhesive or DeckBond spray adhesive, while timber floors require mechanical fixing using AmbiDeck® screws and washers (minimum 12 fixings per board). Tiles can be laid directly over the system; other finishes such as wood, carpet or vinyl require a thin levelling compound layer for optimal finish quality.
Why Choose AmbiDeck® 18?
- Low‑Profile 18mm Build‑Up: Ideal for retrofit projects with strict build‑up limits.
- Direct‑Tile Surface: Cement‑coated board allows tiles to bond directly after priming.
- High‑Density XPS Insulation: Strong compressive strength with improved thermal efficiency.
- Fast Installation: Lightweight boards with universal pipe grooves simplify installation.
- Universal Panel System: Includes Standard, Highway and CornerBoard variants for minimal cutting and maximum coverage.
- Heat‑Pump Ready: Efficient performance at low flow temperatures.
System Components & Build‑Up
- Final floor finish (tiles directly; other finishes require 4-6 mm AmbiFibre Pro levelling compound)
- Flexible tile adhesive (concrete substrate) or AmbiDeck® screws and washers (timber substrate)
- AmbiDeck® 18 panels, cement‑coated high‑density XPS, 1200 x 600 x 18mm, three variants (Standard/Highway/CornerBoard)
- 12mm AmbiFlex® P12 pipe, approx. 8m per m² of heated area
- Structural subfloor: level concrete or timber
This layered construction provides an insulated, tile‑ready UFH solution suited to both new‑build and retrofit applications.
Thermal Performance
Tested in accordance with BS EN 1264‑2:2021, AmbiDeck® 18 achieves up to 79 W/m² at 20°C room temperature with MWT 45°C and 0 tog covering. Performance will vary depending on covering type, pipe centres and building heat‑loss characteristics.
Floor Finishes
- Tiles: Directly over the cement‑coated panel (prime & fill joints).
- Wood / Carpet / Vinyl: Install over 4-6mm fibre‑reinforced levelling compound for correct load‑spread and finish.
Benefits of the AmbiDeck® 18 System
Low-profile build-up
18mm construction suitable for projects with limited floor height
Tile over directly
Suitable for tiled finishes without additional overlay boards
Solid or timber floors
Suitable for solid and timber floor finishes
Speed of installation
Designed for quick and efficient setup
Technical Data
| Specification | Value |
|---|---|
| System Type | Low-profile |
| Subfloor | Solid and suspended |
| Output (W/m²) | 79 W/m² (based on 20°C room temperature at 45°C mean water temperature and 0 tog) |
| Pipe Size (mm) | 12mm |
| Pipe Centres (mm) | 150mm |
| Panel Size (mm) | Universal panel (1200mm x 600mm x 18mm). Highway panel (1200mm x 600mm x 18mm). CornerBoard panel (1200mm x 600mm x 18mm) - 0.72m². |
| Floor build up (excluding floor finishes) | 18mm |
| Maximum loop coverage: | Up to 13m² per loop |
| Heatpump ready | Yes |
| Weight (kg/m²) | 13 kg/m² (includes board and pipe) |
AmbiDeck® 18 FAQs
Yes. The cement coated surface is designed for direct tiling, requiring only priming and flexible adhesive at board joints.
Installing the AmbiDeck® 18 System
Step 1. Ensure the working area is swept, clean and stable. Prime concrete surfaces to improve adhesion before laying the system.
Step 2. Spread an even bed of flexible tiling adhesive over the area before laying the AmbiDeck® 18 panels. For timber subfloors, mechanically fix each board using AmbiDeck® Screws and Washers (12 fixings per board).
Step 3. Install the AmbiDeck® 18 panels across the full area, ensuring the radius returns are positioned correctly at room edges. Allow the adhesive to fully dry before proceeding.
Step 4. Fit the UFH pipework into the channels in the AmbiDeck® panels, following the pipe layout shown on the supplied UFH design drawing.
Step 5. Tiling can be installed directly – prime the boards and fill any gaps with flexible tile adhesive. For carpet, vinyl or wood flooring, apply a minimum 6mm levelling compound over the AmbiDeck® 18 system before laying the final finish.
Why Choose Ambiente?
5-Year System Warranty
A unified 5-year warranty covering all critical UFH components when installed with Ambiente products, giving you and your customers complete peace of mind.
Manufacturing You Can Trust
Designed and manufactured in-house with installer experience at the core, our systems are built for long-lasting performance and reliability you can depend on.
Bespoke Heating Design
Full CAD design service including pipe layouts, heat outputs and flow rates, tailored to your project so the system delivers optimal comfort every time.
Product Technical Support
Access expert technical support throughout specification, installation and aftercare - so you always have the answers when you need them.
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