Superior Product Quality

Experience the best in SWI products.

Flexible Partnership

Adapting to your needs at every stage.

Industry Leadership

40+ years in the EWI industry

0194 271 7100

Superior Product Quality

Experience the best in SWI products.

Flexible Partnership

Adapting to your needs at every stage.

Industry Leadership

40+ years in the EWI industry

A1 Non-Combustible EWI Systems

Introducing breakthrough EWI systems achieving an A1 non-combustible fire rating.

An A1 rated fireproof insulation solution in the UK for building facades, exclusively available from Wetherby. The A1 System range sets new standards in external wall insulation fire performance.

The render system options are finished with Wetherby Heck ED Mineral Render finishing coat, which is ideal for use with stone wool insulation, providing great breathability. While the brick slip systems offer a durable real clay brick finish in a wide range of colour options.

To achieve an A1 rating, the system must be classified to EN 13501-1 using the following fire tests.

EN 13823 SBI (Single Burning Item) – Used to determine the reaction to fire by exposing a flame to the system finish.
EN ISO 1716:2010 – Bomb test. Each component of the system is ‘blown up’ to measure heat output (calorific value). All components must be A1.
EN 1182 – xxxxx

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Explore our A1 Non Combustible Range

We have developed a range of A1 non-combustible systems, ensuring unparalleled protection across diverse substrate types. Discover the Range below.

A1 Stone Wool Direct Fix System - Steel Frame Substrate

A1 Direct Fix Stone Wool System - Steel Frame Substrate

A1 Direct Fix Stone Wool with Brick Slip System - Steel Frame Substrate

A1 Stone Wool & Mineral Render Direct Fix System

A1 Direct Fix Stone Wool & Mineral Render System - Masonry Substrate

A1 Epsibrick with Stone Wool Brick Slip System

A1 Direct Fix Epsibrick with Stone Wool Brick Slip System - Masonry Substrate

A1 Epsitec External Render Carrier Board & Brick Slip System - Timber Frame Substrate (Cavity)

Testing and Certification

As one of the leading EWI system manufacturers in the UK, ROCKWOOL Wall Systems have a wide selection of approvals from the British Board of Agrément, KIWA and various European certification.

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Wetherby A1 System

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Contact the Team at ROCKWOOL Wall Systems

We understand that embarking on a construction project is a significant endeavor, and we’re here to support you every step of the way.

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