Wetherby Building Systems Ltd - A1 System

Wetherby are pleased to present a breakthrough EWI system achieving an A1 non-combustible fire rating. This new innovative A1 system comprises of non-combustible reinforcing mesh and basecoat to achieve the highest possible European fire classification to the BS EN 13501-1 standard.

The thermal benefit of the system is provided by Wetherby’s A1 Stone Wool Insulation which is coated in the purely mineral Wetherby K+A A1 Scrim Adhesive. This is based predominantly on mineral and non-combustible raw material such as quartz, limestone, cement and lime, which ensures perfect adhesion between substrates and insulation board.

The system is finished with Wetherby Heck ED Mineral Render and Heck Silicone Paint, which is ideal for use with stone wool insulation, providing great breathability.

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