---
product_id: 640534057
title: "XPS Foam Insulation Boards 1200 x 600 x 10mm - Electric and Water Underfloor Heating Tile Laminate Underlay Thermal Extruded Polystyrene Insulation Sheets (12, 1200 x 600 x 6mm)"
brand: "cosyspace"
price: "¥79903"
currency: JPY
in_stock: true
reviews_count: 8
category: "Cosyspace"
url: https://www.desertcart.jp/products/640534057-xps-foam-insulation-boards-1200-x-600-x-10mm-electric
store_origin: JP
region: Japan
---

# 1200x600mm perfect fit 0.029 W/mK thermal conductivity 300 kPa compression strength XPS Foam Insulation Boards 1200 x 600 x 10mm - Electric and Water Underfloor Heating Tile Laminate Underlay Thermal Extruded Polystyrene Insulation Sheets (12, 1200 x 600 x 6mm)

**Brand:** cosyspace
**Price:** ¥79903
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay warm, save green – insulation that works as hard as you do!

## Quick Answers

- **What is this?** XPS Foam Insulation Boards 1200 x 600 x 10mm - Electric and Water Underfloor Heating Tile Laminate Underlay Thermal Extruded Polystyrene Insulation Sheets (12, 1200 x 600 x 6mm) by cosyspace
- **How much does it cost?** ¥79903 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/640534057-xps-foam-insulation-boards-1200-x-600-x-10mm-electric)

## 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

- • **Moisture & Mold Resistant:** Water-repellent and non-absorbent design keeps floors dry and mold-free.
- • **Eco-Friendly & Lightweight:** Made from fully recyclable extruded polystyrene, combining sustainability with easy handling.
- • **Built to Last Under Pressure:** High compressive strength of 300 kPa ensures durability under heavy loads.
- • **Energy-Smart Thermal Barrier:** Ultra-low thermal conductivity (0.029 W/mK) maximizes heat retention and cuts energy bills.
- • **Precision Fit, Minimal Waste:** Sized at 1200x600mm for easy installation and less cutting hassle.

## Overview

CosySpace XPS Foam Insulation Boards are high-density, extruded polystyrene sheets designed for superior thermal insulation and moisture resistance. Sized at 1200x600mm with thickness options of 6mm and 10mm, they offer excellent compressive strength (300 kPa) and low thermal conductivity (0.029 W/mK), making them ideal for underfloor heating systems and energy-efficient home upgrades. Lightweight, recyclable, and durable, these boards prevent heat loss, resist damp, and reduce noise, delivering a smart, eco-conscious solution for modern living spaces.

## Description

Note: Please note that the product colour for 6mm and 10mm boards can be blue or black depending on what stock is available. The CosySpace XPS Insulation Boards are eco friendly as they are manufactured from fully recyclable materials.They are produced through a plastic extrusion process to form polystyrene insulation sheets, 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. These XPS boards are also resistant to cement, plaster, and most alkalis (lime or soda), however, not against organic solvents (i.e. acids)SpecificationsBoard Size - 1200mm x 600mmThickness Available - 6mm, 10mm and 20mmHigh compression resistanceAble to resist repeated freeze and thaw cyclesMoisture proof and Air tightSound Reduction of over 22dbNon-absorbentCorrosion proofLow thermal conductivityStructurally stable in the long runTechnical detailsDensity: 40kg/m3Compressive strength: 300 kPa (this equals to 43.51 pound force per square inch)Thermal conductivity:0.029 w/mk

Review: Good floor insulation - These insulation boards were just the right size to fit in my kitchen with minimal cutting required. Besides that the floor is now warm enough to walk on without shoes. You have to be careful not to crush it with chair legs etc but so far it's working fine for me.
Review: Used this to line my pond's walls. - I used this to line the walls of the pond that I have constructed over the present virus period. The item was easy to use and cut and did an excellent job of covering the rougher surfaces of the wall that I had constructed prior to placing the underlay (pond liner) down. It did an excellent job and I was pleased with the results. Would recommend for people who are willing to think outside the box for solutions that they may find in projects that they have.

## 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 | B0D5MN9ZZT |
| Best Sellers Rank | 76,147 in DIY & Tools ( See Top 100 in DIY & Tools ) 72 in Panel Insulation |
| Colour | Blue |
| Customer Reviews | 4.4 4.4 out of 5 stars (189) |
| Date First Available | 26 Aug. 2019 |
| Included Components | No |
| Item Package Quantity | 12 |
| Item model number | Cosysapce |
| Manufacturer | CosySpace |
| Material | Polystyrene |
| Product Dimensions | 1200 x 600 x 0.1 cm |
| Size | 1200 x 600 x 6mm |

## Product Details

- **Brand:** Cosyspace
- **Manufacturer:** CosySpace
- **Material:** Polystyrene
- **Product dimensions:** 12L x 6W metres

## Images

![XPS Foam Insulation Boards 1200 x 600 x 10mm - Electric and Water Underfloor Heating Tile Laminate Underlay Thermal Extruded Polystyrene Insulation Sheets (12, 1200 x 600 x 6mm) - Image 1](https://m.media-amazon.com/images/I/21uZkKthLyL.jpg)
![XPS Foam Insulation Boards 1200 x 600 x 10mm - Electric and Water Underfloor Heating Tile Laminate Underlay Thermal Extruded Polystyrene Insulation Sheets (12, 1200 x 600 x 6mm) - Image 2](https://m.media-amazon.com/images/I/31N65mGnk7L.jpg)
![XPS Foam Insulation Boards 1200 x 600 x 10mm - Electric and Water Underfloor Heating Tile Laminate Underlay Thermal Extruded Polystyrene Insulation Sheets (12, 1200 x 600 x 6mm) - Image 3](https://m.media-amazon.com/images/I/41yReJd6ptL.jpg)

## Available Options

This product comes in different **Size, Item Package Quantity** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good floor insulation
*by D***D on 7 November 2023*

These insulation boards were just the right size to fit in my kitchen with minimal cutting required. Besides that the floor is now warm enough to walk on without shoes. You have to be careful not to crush it with chair legs etc but so far it's working fine for me.

### ⭐⭐⭐⭐⭐ Used this to line my pond's walls.
*by A***B on 16 November 2020*

I used this to line the walls of the pond that I have constructed over the present virus period. The item was easy to use and cut and did an excellent job of covering the rougher surfaces of the wall that I had constructed prior to placing the underlay (pond liner) down. It did an excellent job and I was pleased with the results. Would recommend for people who are willing to think outside the box for solutions that they may find in projects that they have.

### ⭐⭐⭐⭐ Arrived damaged
*by P***N on 23 January 2025*

Arrived with damaged packaging to one edge, funnily enough, it's on a protected side, not the unprotected ends, I'd suggest better protection for transit, oh, and it was delivered to No.15, not number 11! Apart from that, it looks perfect for the job in hand, which is to insulate the walls in a built in wardrobe, to stop condensation mould. I can get around the slight damage when cutting to fit, which I'm sure I'll have to. The sheets are larger than I expected, even though it does give dimensions, so will cover areas pretty quickly. The blue will stand out a bit in the wardrobe, so I may paint it in the future. I've treated the walls twice, I'm waiting for the mould block paint, coming tomorrow, then the glue on Tuesday, I'll report back once the job is done. It looks good value for money, it's thicker than foil, should insulate better, should save on heating, protect clothes and cut easily. Update It cuts really easy with a craft knife and straight edge. It's stuck really well with a water based adhesive, fits really flat to the wall. So I can't really fault this product. Warning, make sure that you buy enough, I'm a sheet short I think, although I may be able to patch an inconspicuous part with the odds and sods of offcuts, which unfortunately there's not a lot of, as you can only order a minimum of 10 sheets!

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-07*