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Exterior thermal insulation: performance and durability
Optimize energy efficiency with durable, high-performance exterior thermal insulation in expanded polystyrene.

Knauf Industries, your partner in insulation
High-performance, certified solutions
Our EPS insulating materials meet market standards and requirements.
Expert support every step of the way
We guide you from design to implementation.
Products for all your projects
Our solutions cover all thermal insulation needs.
A strong commitment to the environment
We prefer recyclable and eco-designed materials.
High-performance exterior thermal insulation
Expanded polystyrene (EPS) is the insulation of choice for exterior thermal insulation (ETI). Composed of 98% air, it offers excellent thermal resistance while being lightweight and easy to handle. Its honeycomb structure effectively limits heat loss and reduces a building's energy consumption. Easy to install, it simplifies worksites and adapts to all types of facade, whether new or renovated.
The advantages of expanded polystyrene for ITE applications
- Optimum thermal insulation
Limits heat loss and improves efficiency.
- Lightweight and easy to install
Easy to cut, it speeds up construction and cuts costs.
- Durability and resistance
A stable material, it retains its properties over the long term.
- Economical and ecological solution
Recyclable and efficient, it reduces our environmental footprint.
Need to know more about our materials?
We have the specific solution you need.
Solutions for every ITE project
EPS panels from the Isobox Isolation range offer an effective solution for external thermal insulation. Compatible with a variety of finishing systems, they are suitable for both new-build and renovation projects. Lightweight, durable and high-performance, they can be adapted to all types of building, from single-family homes to multi-family and commercial buildings, while complying with current standards.
Molded and cut EPS solutions
EPS panels can be manufactured by molding or cutting to suit all external thermal insulation projects. Moulding guarantees increased mechanical strength and precise designs, while cutting allows great flexibility of shape. At the end of their life, these materials can be recycled via Knauf Circular, contributing to more sustainable and eco-responsible construction.
Recognized expertise in thermal insulation
For over 90 years, we've been supporting building professionals with high-performance external thermal insulation solutions. Our Isobox Isolation products combine quality, durability and compliance with standards. As the world's leading EPS converter, we guarantee technical support, innovative tools and personalized assistance to meet the demands of the most ambitious projects.
More informations?
Would you like to find out more about our materials or discuss your projects?