









Warmup INSBOARD50MM Insulation Board For Underfloor Heating Systems Thickness : 50mm x Width: 600mm x Length : 1250mm
INSBOARD50MM
Warmup INSBOARD50MM Insulation Board – 50mm High-Performance Tile Backer for Superior Underfloor Heating Efficiency
The Warmup INSBOARD50MM is a premium insulation board designed to maximise the performance of underfloor heating systems. Made from high-density extruded polystyrene and reinforced with fibreglass mesh and a cement polymer coating, this 50mm board delivers outstanding thermal insulation and structural strength.
- Exceptional Thermal Efficiency: 50mm thickness ensures minimal heat loss and faster warm-up times in demanding applications.
- Waterproof Composition: Suitable for use in wet environments including bathrooms, wet rooms, and kitchens.
- Reinforced Durability: Coated with cement and mesh for excellent load resistance and reliable tile fixing.
- Ideal for Solid Floors: Perfect for new builds or installations requiring maximum insulation beneath the floor finish.
- Easy to Work With: Lightweight yet rigid board can be easily cut and installed with adhesives or mechanical fixings.
Technical Specification
- Product Type: Insulated Tile Backer Board
- Material: Extruded polystyrene with fibreglass mesh and cement polymer coating
- Board Size: 1250mm (L) x 600mm (W)
- Thickness: 50mm
- Water Resistance: Yes
✅ Choose Warmup INSBOARD50MM for outstanding insulation and long-term energy savings in any underfloor heating setup!

Range | Warmup INS Insulation Boards |
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.