Heating and decoupling in one

ThermoSphere Membrane is an award-winning electric underfloor heating system for tile and stone floors.


Key features

Underfloor heating made for tile and stone

ThermoSphere Membrane is a proven combined electric underfloor heating and decoupling system. It's an easy way to create warm floors and comfortable rooms while protecting tile or stone floors from cracking and delamination. Just like our other electric underfloor heating systems, it's backed by a lifetime warranty!

Membrane Roll - Right


Save time with self-adhesive

There's no need to buy extra tile adhesive, if you choose the self-adhesive option, just stick it straight onto plywood or OSB sub floors. The self-adhesive is the strongest available in the UK and also saves you 3mm of floor height.


5 solutions in one easy to install system

ThermoSphere Membrane provides heating, decoupling, water proofing, load bearing and vapour management properties all wrapped up in one easily installed system. Available as a fleece-backed or self-adhesive option, you can easily choose the system that is right for your project. No matter what you choose, you will benefit from the same great features

Variable spacing

Variable spacing

Choose between an output of of 130W/m2 for well insulated rooms and 195W/m2 when you need a faster heat up time.


TwistedTwin cable

The innovative, twin twisted stress free cable construction creates a superior heating cable with zero electromagnetic field.

Highly Rated

Highly rated

ThermoSphere Membrane has an IP68 rating which means it's impervious to moisture and safe to use in bathrooms and wet rooms.

Low Profile

Minimal height

At only 5.5mm thick and using LayFlat cold tail technology makes it a great option if you are looking to minimise floor height.

"ThermoSphere Membrane is very easy to use, makes tiling easy and keeps finished floor height to a minimum, which customers are always delighted with."

- Martin Turner

Superior heating cable

Unique TwistedTwin heating cable technology reduces cable stress which helps to create a safer, longer lasting heating cable making it the most robust heating cable available.

The heating cable is pressed in-between dimples (or studs)  of the membrane which protects the cable from any damage caused by a heavy hand using a trowel.


Membrane Installation_05

Choose your heating output

ThermoSphere Membrane allows for different heating outputs. You do this by changing the spacing between the cable. Use a two-stud spacing for an output of 195W/m2 (ideal for wet rooms) and a three-stud spacing for an output of 130W/m2 (great for well-insulated buildings).


Membrane cable variable spacing

Control with ease

Maximise the efficiency of your electric underfloor heating system by choosing the thermostat that suits your lifestyle. If you want to control it via an app, then SmartHome or the Bluetooth Programmable Thermostat might just be for you.

Explore the thermostat range

Heating control header

Your ThermoSphere Membrane questions answered

If you have a question that needs an answer, our comprehensive FAQs page is packed full of them. However, we know that some questions are more complex than others so our team are always available to help.


Contact one of the team