---
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: "KD 67.99"
currency: KWD
in_stock: true
reviews_count: 2
category: "Cosyspace"
url: https://www.desertcart.com.kw/products/790228905-xps-boards-floor-underlay-thermal-insulation-underfloor-heating-600-x
store_origin: KW
region: Kuwait
---

# water & damp resistant 6mm thick thermal barrier 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:** KD 67.99
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay warm, save green: Insulate smarter, not harder!

## 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?** KD 67.99 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/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 concrete floors, wet rooms, lofts, and walls—perfect for modern insulation needs
- • **Lightweight Yet Durable:** High-density extruded polystyrene offers stable, anti-ageing performance without heavy lifting
- • **Eco-Friendly & Recyclable:** Made from fully recyclable materials, supporting your green building goals
- • **Moisture & Compression Resistant:** Water-repellent and resistant to cement, plaster, and alkalis for long-lasting protection
- • **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 and easy to cut, these boards resist moisture, compression, and ageing, making them ideal for concrete floors and various insulation applications. Fully recyclable and water-repellent, they help reduce energy consumption and protect against cold and damp, supporting sustainable and cost-effective home improvements.

## 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 |
| Best Sellers Rank | 491,846 in DIY & Tools ( See Top 100 in DIY & Tools ) 369 in Panel Insulation |
| Brand | Cosyspace |
| Coverage | 8.55 m2 |
| Customer Reviews | 4.5 out of 5 stars 18 Reviews |
| Manufacturer | CosySpace |
| Material | Polystyrene |

## 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/51ZRy9ZNEUL.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/61-6IGv8cVL.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/61IfKYLpHaL.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/61eHRnWGnKL.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/61mKb4tgCLL.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 Kuwait*
*Store origin: KW*
*Last updated: 2026-01-26*