---
product_id: 369194750
title: "Nassboards XPS Boards Floor Underlay Thermal Insulation Underfloor Heating - 11 x 10mm (7.9m2)"
brand: "nassboards"
price: "€ 168.23"
currency: EUR
in_stock: true
reviews_count: 8
category: "Nassboards"
url: https://www.desertcart.sk/products/369194750-nassboards-xps-boards-floor-underlay-thermal-insulation-underfloor-heating-11
store_origin: SK
region: Slovakia
---

# Speeds heating by 30% Lightweight & easy to cut Waterproof & mould resistant Nassboards XPS Boards Floor Underlay Thermal Insulation Underfloor Heating - 11 x 10mm (7.9m2)

**Brand:** nassboards
**Price:** € 168.23
**Availability:** ✅ In Stock

## Summary

> 🔥 Insulate smarter, heat faster, live warmer!

## Quick Answers

- **What is this?** Nassboards XPS Boards Floor Underlay Thermal Insulation Underfloor Heating - 11 x 10mm (7.9m2) by nassboards
- **How much does it cost?** € 168.23 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/369194750-nassboards-xps-boards-floor-underlay-thermal-insulation-underfloor-heating-11)

## Best For

- nassboards enthusiasts

## Why This Product

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

## Key Features

- • **Accelerate Your Warm-Up:** Boosts underfloor heating efficiency by up to 30%, cutting wait time and energy costs.
- • **Maximize Energy Savings:** Highest ‘R’ rating on the market locks in heat, slashing your heating bills sustainably.
- • **Cut & Fit with Zero Fuss:** Lightweight boards easily trimmed with a knife—no special tools required for a perfect fit.
- • **Confidence in Every Sheet:** Backed by a lifetime warranty for stress-free installation and long-term peace of mind.
- • **Built to Last, Resist the Worst:** Waterproof XPS foam prevents mould and damp, ensuring durability in any environment.

## Overview

Nassboards XPS Boards are premium 10mm thick thermal insulation panels designed to enhance underfloor heating systems. Made from durable, waterproof polysynthetic foam, they offer the highest R-value for superior heat retention, speed up room warming by 30%, and resist mould and damp. Lightweight and easy to cut, these boards install effortlessly on concrete or timber surfaces, backed by a lifetime warranty for lasting performance and energy savings.

## Description

Shop Nassboards XPS Boards Floor Underlay Thermal Insulation Underfloor Heating - 11 x 10mm (7.9m2). Free delivery on eligible orders of £20 or more.

Review: Very Good - Was apprehensive on the boards but stuck on a concrete base in my kitchen with flexi adhesive,Heat mat 200w, self leveller, anti crack mat then tiled in porcelain. Turned the thermostat on after 7 days, set on my iPhone & instant heat at 20degrees increased day by day to 22 and is nice & warm on the feet. Maybe wintertime I’ll take it higher but it’s took a very cold ground floor kitchen to a very nice pleasurable place to be. Thanks Nassboards will definitely be using again 👍👍
Review: Good UH boards - Perfect as a backer for electric UH mat. Glues well to subfloor with tile adhesive.

## Features

- EXCELLENT INSULATION: The Nassboard XPS Insulation Boards are a must have addition to your underfloor heating kit to add extra insulation and increase the energy efficiency of your underfloor heating system. All boards are manufactured from black foam polysynthetic and will not deteriorate. It will provide excellent insulation and the highest ‘R’ rating available on the market, saving heat and energy making sure that your heating is cost effective speeds up the time it takes to warm your home
- MOULD RESISTANT BOARDS: Not only an excellent material to combine with your underfloor heating system, the XPS Insulation Boards by Nassboards are perfect for using in outbuildings and other areas to protect against cold and damp thanks to their waterproof properties. Since they’re waterproof, these boards will not rot or go mouldy, and will prevent damp from seeping through your floor. The XPS Insulation Boards are available in 10mm thick or 6mm thick, with each sheet measuring 600mm x 1200mm
- EFFICIENT AND ECONOMIC HEATING: Made from high-quality polysynthetic materials, the Nassboards Thermal Insulation Boards are excellent when used as an underlay, and will speed up the time It takes to heat up any room by up to 30%, and reduces heat lost through the floor. The XPS Insulation Boards help improve the economic value of your underfloor heating, and reduce your heating bills significantly
- LIGHTWEIGHT AND EASY TO INSTALL: Each sheet of XPS Insulation is lightweight, versatile and can be installed with ease. You don't need a jigsaw or any expensive tools to cut or shape these Boards, you can easily cut them to size with a sharp knife. These boards can be installed on any surface, such as concrete or timber, improving insulation and greatly reducing the time it takes to heat up your floors and the running costs involved with underfloor heating
- LIFETIME WARRANTY: Every purchase that you make with Nassboards comes with a lifetime guarantee. We at Nassboards stand behind all of our products, so if at any point you are not happy with your product, get in touch with us so that we can issue a replacement or a refund at any point during the product's use. Customer satisfaction is our number one priority, so that you can enjoy a stress free experience when shopping with Nassboards

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07TK6YMDT |
| Best Sellers Rank | 298,362 in DIY & Tools ( See Top 100 in DIY & Tools ) 153 in Floor Heating |
| Brand | Nassboards |
| Coverage | 0.72 square meters per pack |
| Customer Reviews | 4.4 out of 5 stars 133 Reviews |
| Item Dimensions L x W | 120L x 60W centimetres |
| Item Thickness | 10 Millimetres |
| Item thickness | 10 Millimetres |
| Manufacturer | Nassboards |
| Material | Foam |
| Product dimensions | 120L x 60W centimetres |

## Product Details

- **Brand:** Nassboards
- **Item thickness:** 10 Millimetres
- **Manufacturer:** Nassboards
- **Material:** Foam
- **Product dimensions:** 120L x 60W centimetres

## Images

![Nassboards XPS Boards Floor Underlay Thermal Insulation Underfloor Heating - 11 x 10mm (7.9m2) - Image 1](https://m.media-amazon.com/images/I/61pBAQzZZ4L.jpg)

## Available Options

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

## Questions & Answers

**Q: How heavy are these 10mm thick boards**
A: Very light it’s only a dense polystyrene And they are only 1200 x 600mm. I found a paint scraper best for trimming them rather than a Stanley knife.

**Q: Want to use under vinyl click in garage with lumpy floor would this work?**
A: I used it on a concrete floor which was slightly uneven prior to laying down ceramic floor tiles, my suggestion would be to even out any big/excessive lumps or apply some self levelling screed before fitting the boards.

**Q: What is the insulating U-value for the 10 mm board?**
A: No idea but they are made to go under electric heaters and I have them in the bath room and they work very well

**Q: Can these boards be used on bathroom walls to tile on?**
A: No these are not designed for wall tile installation

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Good
*by M***C on 19 April 2020*

Was apprehensive on the boards but stuck on a concrete base in my kitchen with flexi adhesive,Heat mat 200w, self leveller, anti crack mat then tiled in porcelain. Turned the thermostat on after 7 days, set on my iPhone & instant heat at 20degrees increased day by day to 22 and is nice & warm on the feet. Maybe wintertime I’ll take it higher but it’s took a very cold ground floor kitchen to a very nice pleasurable place to be. Thanks Nassboards will definitely be using again 👍👍

### ⭐⭐⭐⭐⭐ Good UH boards
*by N***. on 10 October 2024*

Perfect as a backer for electric UH mat. Glues well to subfloor with tile adhesive.

### ⭐⭐⭐⭐⭐ Good
*by N***M on 9 July 2024*

Good quality boards do the job well and waterproof, do soften easily so do not tread on or you will compression it

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**Shop now:** [https://www.desertcart.sk/products/369194750-nassboards-xps-boards-floor-underlay-thermal-insulation-underfloor-heating-11](https://www.desertcart.sk/products/369194750-nassboards-xps-boards-floor-underlay-thermal-insulation-underfloor-heating-11)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-09-20*