The EWI Pro Clamping Washer is engineered to work alongside EWI fixings, delivering reliable fastening of insulation boards to external wall surfaces. This component maintains system performance across diverse weather conditions, providing secure attachment whilst reducing thermal bridging.
Compatible with EWI Pro fixings, this washer accommodates various insulation types including EPS, mineral wool, and phenolic boards. It incorporates an integrated masking plug that minimises thermal bridging and improves visual finish. Works with insulation of any thickness and permits both flush and recessed installation options depending on screw choice.
Preparation – Clean the wall surface thoroughly and remove any loose material. Fixing Placement – Thread the EWI fixing through the washer centre. Installation – Insert the fixing and washer assembly into the pre-drilled hole, then tighten securely. Final Check – Ensure the washer is level against the board surface for balanced load distribution.
Explore our full Render Supplies range. We deliver across the UK Mainland. For project-specific advice or bulk pricing requests, contact us on +4402038839057 , email sales@insulationbee or use Live Chat.








