Aluminium window sill extension Type721

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WEC721-https://insulationgo.co.uk/100mm-wind...

WEC731-https://insulationgo.co.uk/100mm-sill...

WEC741-https://insulationgo.co.uk/30mm-cill-...

WEC751-https://insulationgo.co.uk/210mm-over...

WEC761-https://insulationgo.co.uk/100mm-sill...


Window Sill Extension (Metal Oversill and Eaves Flashing) is a non-corrosive aluminium ledge profile suitable for EWI (external wall insulation) systems, thin coat rendering and most conditions requiring the weathering.

WEC721 Sill is a 2500mm long trim made from 1.2mm thick aluminium, white powder coated on both sides to deliver a high quality durable finish and improve appearance of the buildings.

Larger sizes or variations on any of these sills can be manufactured to your specific requirements, and powder coated to any RAL colour.