How heavy are these 10mm thick boards

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.

Want to use under vinyl click in garage with lumpy floor would this work?

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.

What is the insulating U-value for the 10 mm board?

No idea but they are made to go under electric heaters and I have them in the bath room and they work very well

Can these boards be used on bathroom walls to tile on?

No these are not designed for wall tile installation

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Nassboards XPS Boards Floor Underlay Thermal Insulation Underfloor Heating - 11 x 10mm (7.9m2)

Nassboards XPS Boards Floor Underlay Thermal Insulation Underfloor Heating - 11 x 10mm (7.9m2)

Product ID: 369194750

Details

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

🔥Speeds heating by 30%

⚖️Lightweight & easy to cut

🛡️Waterproof & mould resistant

₨12238

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Description

🔥 Insulate smarter, heat faster, live warmer!

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.

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.

Specifications

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

Reviews

M**C

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 👍👍

19.04.2020

N**.

Good UH boards

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

10.10.2024

N**M

Good

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

9.07.2024

Z**N

Excellent and easy to install

22.08.2020

S**R

Warmth

Its keeping the cold from concrete floor as soon as you lay this,i highly recommend it

29.09.2024

H**N

Didn't really work for what I needed them for

Bit thin & bendy depends what you using them for there no good for putting tiles over because the tiles move

12.12.2025

B**Y

Perfect for my project, next day delivery.

Quality product, easy to cut and fix. Next day delivery. Used to line and insulate the internal walls of a static caravan to avoid condensation.

12.04.2022

L**R

Great

Lovely and warm in the summerhouse

7.04.2021

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TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

2 days ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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₨12238

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Seychelles.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

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Great experience from order to delivery. Highly recommended!

1 week ago

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