Espai Natura II, Haus, ETICS, walls, thermal bridges. REDArt. SATE


External Thermal Insulation Composite System – or ETICS – is a compact multilayer insulation solution designed to improve the energy efficiency of both new and existing buildings.

It is sometimes known as EIFS (Exterior Insulation Finish System) in North America. 

This external wall insulation system is made from many layers, including a base coat, reinforced mesh and finishing coat. Continuous external insulation improves thermal performance and reduces thermal bridges, storing cool air in the walls to create a more comfortable living environment.

The types of materials used can vary between systems, making it flexible to fit different building structures and designs. This makes it a popular choice if you are looking to renovate existing blocks of flats.

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Why do we need ETICS?

A building’s façade is normally the largest surface area between its internal and external environment – where a great amount of heat loss can occur. Thermal insulation of the external walls from the outside is an efficient way of protecting against thermal energy gain.1

ETICS works to insulate the vertical envelope of a building – whether an individual detached house or entire apartment block. This prevents temperature load, weather-related damage, and condensation problems.

Key benefits include:

  • Preventing heat gained by reducing thermal bridging
  • Improving the energy efficiency of an entire building
  • Low-cost solution to upgrading existing properties
  • Installation without inhabitants having to move out



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ROCKWOOL external thermal insulation systems can offer different products such as slabs and lamella, in a range of thicknesses. 

The thickness of insulation applied to an external insulation system will depend on local regulations and requirements. Additional factors such as the size of the wall being insulated, its base characteristic and finish will all affect the exact cost of installation.

Technical support is commonly available from your local ROCKWOOL organisation to work out the precise products and thicknesses required. Certain tools may also be available to help work out the current thermal performance of your walls.

reference project Grand Park Hotel Rovinj, Croatia, roof, facade, ETICS
With its smart fibre structure, ROCKWOOL stone wool adapts to irregularities, preventing sagging or gaps in the insulation layer. This helps keep warmth or cooler air in, thereby preserving thermal comfort.

Erica Bazzini

ROCKWOOL Group Product Manager

Case Studies

See how ROCKWOOL release the natural power of stone to enrich modern living.

Case Study, Bethesda Hospital
We are proud that our products were chosen for the renovation of Mother’s House. It’s a really positive use of ROCKWOOL stone wool.

Kornél Bányai

Country Sales Manager, ROCKWOOL Hungary

Sustainability and energy efficiency

ROCKWOOL products used in external wall insulation systems reduce heating fluctuations and improve the thermal comfort of any building and sustainable building rating schemes.


wooden tower - Ri-Legno - ETICS

Local support

Would like to know more? get ROCKWOOL local support.

Workers, Technical, Hardware


What is ETICS?
How do I insulate my facade made out of bricks?
Where are ETICS used?