Madonnahoo

A double glazed unit is created by cutting the two panes of glass to size – all Everest units are made to measure.

This means that an equal amount of tensile and compressive stresses are formed across the glass which allows it to become in the order of four times as strong as annealed glass.

This means you must make sure to check for proper adhesion with the latest window frame types (various types of PVC, foil or coated aluminium).

It’s also a practical option for heritage or listed buildings, where altering the original windows isn’t allowed.