





Dry Screed Overlay Cement Boards for Underfloor Heating Flat Non Routed
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High Performance Flat Non Routed Dry Screed Overlay Cement Boards for Underfloor Heating
Description
The High Performance Flat Non Routed Dry Screed Overlay Cement Boards by ThermRite are premium-quality, flat cementitious boards designed to be installed directly onto grooved insulation boards in underfloor heating systems. These non-routed boards provide a smooth, strong surface suitable for tiling or other floor finishes, eliminating the need for additional screed layers.
Featuring tongue and groove interlocking glued joints, these panels do not require screws for assembly, allowing quick and efficient installation. Their high thermal conductivity and low thermal resistance ensure rapid heat transfer, optimizing underfloor heating performance.
Minimum Order: 10 Boards (7.2m²)
What’s Included
- Cement boards sized 1200mm x 600mm
- Board thickness: 18mm
- Coverage per board: 0.72 m²
- Tongue and groove edges for easy interlocking and alignment
- Installation instructions included
Key Features
- Flat, non-routed design for smooth surface finish
- 18mm total thickness ideal for floor build-up efficiency
- High thermal conductivity of 0.40 W/mK enabling effective heat transfer
- Very low thermal resistance of 0.045 m²·K/W ensuring minimal heat loss
- Low thermal expansion for dimensional stability
- High impact resistance and durable underfloor cementitious surface
- Does not contract or expand like chipboard when exposed to moisture
- Tongue & groove interlocking joints allow screw-free installation
- Accepts ceramic tiles directly for seamless floor finishing
Benefits
- Speeds up installation by eliminating the need for additional screeding
- Provides a robust, durable surface perfect for tile adhesion
- Enhances underfloor heating efficiency with superior heat transfer properties
- Reduces floor build height compared to traditional screed
- Minimizes risk of floor movement and cracks due to stable cementitious composition
- Simple installation cuts labor time and complexity
Technical Specifications
Board Height (Thickness) | 18 mm |
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Board Dimensions | 1200 mm x 600 mm |
Board Coverage | 0.72 m² per board |
Thermal Conductivity | 0.40 W/mK |
Thermal Resistance | 0.045 m²·K/W |
Edge Detail | Tongue and groove interlocking (no screws required) |
Impact Resistance | High |
Water Resistance | No swelling or contraction like chipboard |
Floor Finish Compatibility | Direct tile application |
Minimum Order Quantity | 10 boards (7.2 m²) |
The High Performance Flat Non Routed Dry Screed Overlay Cement Boards from ThermRite provide a professional-quality, efficient flooring solution designed to integrate seamlessly with underfloor heating insulation systems, offering speedy installation, durability, and excellent thermal performance.
- Type Water Underfloor Heating Panels
- Vendor ThermRite
Please note: Delivery times may vary depending on location, with specific details outlined below.
Standard Delivery
UK Mainland
- Delivery Time: 2–4 working days
- Free Delivery on all orders
Express Delivery
UK Mainland
- Delivery Time: 1–3 working days
- Delivery fee of £15
Channel Islands
- Postcodes Covered: GY*, IM*, JE*
- Minimum Order: £50
- Delivery Fee: £70
Northern Ireland, Offshore Territories & Scottish Islands
- Postcodes Covered: BT*, HS*, KW, ZE
- Minimum Order: £50
- Delivery Fee: £35
Same Day Delivery
- Eligible Postcodes:
E*, EC*, N*, NW*, SE*, SW*, W*, WC*, HA*, UB*, EN*, IG*, RM*, KT*, SM*, CR*, BR*, DA*, TW* - Minimum Order: £50
- Same Day Delivery Fee: £60
- Special Requests or Locations:
For areas outside these postcodes or urgent quotes, please email orders@qualityheating.co.uk and we’ll do our best to accommodate.
Collections
Want to collect your order instead?You’re welcome to do so — just email us at orders@qualityheating.co.uk or message us via WhatsApp with your preferred collection time, and we’ll confirm the details.
Collection address: 284 Water Rd, Unit 9, London, HA0 1HX