









Heatmat TTB-020-0004 Concrete-Faced Low Profile Thermal Insulation Boards - Thickness : 20mm - Coverage : 3.60m² (Pack Size 5 Boards)
TTB-020-0004
Heatmat TTB-020-0004 Low Profile Thermal Insulation Boards – Concrete-Faced, 20mm Thick for Enhanced Underfloor Heating Efficiency
The Heatmat TTB-020-0004 Concrete-Faced Thermal Insulation Boards are specifically designed to optimise the performance of electric underfloor heating systems. With a slim 20mm profile, they reduce heat loss and improve warm-up times, making them ideal for both renovation and new-build projects.
- Improved Energy Efficiency: Minimises downward heat loss and ensures faster heat-up, reducing running costs.
- Low Profile Design: Just 20mm thick, perfect for installations where floor height build-up must be kept to a minimum.
- Durable Concrete-Faced Finish: Provides a stable, load-bearing surface ideal for tile or levelling compound applications.
- Quick and Easy Installation: Lightweight and easy to cut, enabling a fast and flexible fitting process.
- Multipack Coverage: Supplied as a pack of 5 boards, covering a total area of 3.60m².
Technical Specification
- Board Dimensions: 1200mm x 600mm
- Thickness: 20mm
- Coverage: 3.60m² per pack
- Material: Concrete-faced extruded polystyrene
- Pack Size: 5 boards
✅ Boost the performance and efficiency of your underfloor heating system with Heatmat’s low profile insulation boards!

Range | TTB Insulation Boards |
Coverage | 3.60 Square Metres |
Product | Underfloor Heating |
Type | UFH Insulation Board |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.