---
product_id: 790228905
title: "XPS Boards Floor Underlay Thermal Insulation Underfloor Heating 600 x 600mm x 6mm Sheets - 1.86m2 to 18.60m2"
brand: "cosyspace"
price: "€ 471.95"
currency: EUR
in_stock: true
reviews_count: 2
category: "Cosyspace"
url: https://www.desertcart.sk/products/790228905-xps-boards-floor-underlay-thermal-insulation-underfloor-heating-600-x
store_origin: SK
region: Slovakia
---

# 6mm ultra-thin thermal barrier 100% recyclable polystyrene lightweight & easy to cut XPS Boards Floor Underlay Thermal Insulation Underfloor Heating 600 x 600mm x 6mm Sheets - 1.86m2 to 18.60m2

**Brand:** cosyspace
**Price:** € 471.95
**Availability:** ✅ In Stock

## Summary

> ♻️ Stay warm, save green, and build smarter with CosySpace XPS Boards!

## Quick Answers

- **What is this?** XPS Boards Floor Underlay Thermal Insulation Underfloor Heating 600 x 600mm x 6mm Sheets - 1.86m2 to 18.60m2 by cosyspace
- **How much does it cost?** € 471.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/790228905-xps-boards-floor-underlay-thermal-insulation-underfloor-heating-600-x)

## Best For

- cosyspace enthusiasts

## Why This Product

- Trusted cosyspace brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Application:** Ideal for underfloor heating, lofts, walls, and wet rooms—upgrade your entire space with one product.
- • **Durable & Water Resistant:** Resists compression, moisture, and mould—perfect for damp-prone concrete floors.
- • **Lightweight & Easy to Install:** Cut-to-fit sheets simplify installation, saving you time and effort on any project.
- • **Eco-Friendly Insulation Solution:** Made from fully recyclable extruded polystyrene, supporting sustainable building practices.
- • **Maximize Underfloor Heating Efficiency:** Reflects heat back to floor surface, reducing energy waste and lowering bills.

## Overview

CosySpace XPS Boards are 6mm thick extruded polystyrene insulation sheets designed to enhance underfloor heating efficiency by reflecting heat back to the floor. Lightweight, water-resistant, and durable, these recyclable boards prevent damp and cold penetration, making them ideal for concrete floors and poorly insulated properties. Easy to cut and install, they offer a cost-effective, eco-friendly solution for modern energy-conscious homes.

## Description

Note: Please note that the product colour for 6mm and 10mm boards can be blue or black depending on what stock is available. CosySpace XPS Insulation Boards are manufactured from fully recyclable materials. They are produced from foamed polystyrene, a material that does not deteriorate. The cell structure in the board is built up from very fine closed cells that give the product its excellent physical and mechanical characteristics.An excellent insulation that saves energyThis special cell structure means that the sheet does not conduct heat. When you lay CosySpace XPS boards as an underlay any heat from your room or floor will be reflected back towards the floor surface. This is because you will not be wasting heat through your floor and will utilise your energy in a very green efficient manner, thereby lowering your energy consumption and carbon footprint.Effective protection against cold and dampCosySpace XPS boards do not only take care of the heat, they are also an effective guard against the cold and damp. The cold will be held back by the non-conducting characteristics of the foam and as the CosySpace XPS board is also water repellent, it will not rot or go mouldy and will help hold back any damp from your floor. CosySpace XPS boards are also resistant to cement, plaster, and most alkalis (lime or soda), however, not against organic solvents (i.e. acids)

Review: Perfect for under floor heating - - Specially built for under floor heating - easy to cut for different sizes - package arrived much sooner than expected so that we could start the work! only downside is that they were slighly different sizes. Overall quite pleased.
Review: Did the job... - ....but the sizing wasn't exactly the same on all boards. We used them under 9mm ply so the gaps got covered up but would have been nice to have them all uniform. I would recommend though - it's not as if you see them after the work is done...

## Features

- Best Used With An Underfloor Heating Kit On Concrete Flooring a Low Cost Proxy To Tile Backer Board
- High Density, Light Weight And Low Cost Make This Foam Board Ideal In A Poorly Insulated Property
- XPS Boards Are An Extruded Polystyrene Insulation Board Made Through A Plastic Extrusion Process
- Widely Used In Walls And Loft Insulation, Underfloor Heating, Roof, Wet Room, And Non Moisture Areas
- Stable Performance, Anti-ageing, Resistant To Compression, Water Resistant, Lightweight, Recyclable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HPD6FF2 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 490,800 in DIY & Tools ( See Top 100 in DIY & Tools ) 363 in Panel Insulation |
| Colour | Blue |
| Coverage | 8.55 m2 |
| Customer Reviews | 4.5 4.5 out of 5 stars (18) |
| Date First Available | 26 Sept. 2018 |
| Manufacturer | CosySpace |
| Material | Polystyrene |
| Size | 8.55 m2 |

## Product Details

- **Brand:** Cosyspace
- **Manufacturer:** CosySpace
- **Material:** Polystyrene

## Images

![XPS Boards Floor Underlay Thermal Insulation Underfloor Heating 600 x 600mm x 6mm Sheets - 1.86m2 to 18.60m2 - Image 1](https://m.media-amazon.com/images/I/31yqw-YD4pL.jpg)
![XPS Boards Floor Underlay Thermal Insulation Underfloor Heating 600 x 600mm x 6mm Sheets - 1.86m2 to 18.60m2 - Image 2](https://m.media-amazon.com/images/I/41fJgnMuHHL.jpg)
![XPS Boards Floor Underlay Thermal Insulation Underfloor Heating 600 x 600mm x 6mm Sheets - 1.86m2 to 18.60m2 - Image 3](https://m.media-amazon.com/images/I/51-GROV15TL.jpg)
![XPS Boards Floor Underlay Thermal Insulation Underfloor Heating 600 x 600mm x 6mm Sheets - 1.86m2 to 18.60m2 - Image 4](https://m.media-amazon.com/images/I/51-WQXxVEiL.jpg)
![XPS Boards Floor Underlay Thermal Insulation Underfloor Heating 600 x 600mm x 6mm Sheets - 1.86m2 to 18.60m2 - Image 5](https://m.media-amazon.com/images/I/512cqnwmVNL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for under floor heating
*by M***D on 22 April 2021*

- Specially built for under floor heating - easy to cut for different sizes - package arrived much sooner than expected so that we could start the work! only downside is that they were slighly different sizes. Overall quite pleased.

### ⭐⭐⭐⭐ Did the job...
*by T***N on 2 May 2019*

....but the sizing wasn't exactly the same on all boards. We used them under 9mm ply so the gaps got covered up but would have been nice to have them all uniform. I would recommend though - it's not as if you see them after the work is done...

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-10*