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A superior technology designed to minimise energy loss through your windows

Benefits of Thermoflex Warm Edge Spacer and Energy efficient windows for Specifiers, Architects and Builders
Manufacture superior glazing units with Thermoflex warm edge spacer
Thermoflex Warm Edge Spacer for Window Installers and Fabricators
Homeowners can reduce heating bills with Thermoflex energy saving windows

Warm Edge Technology

What is Warm Edge Technology?

The edge of the glass accounts for up to 80% of energy loss through a window 

Warm Edge Spacer helps minimise heat lost through a window

The purpose of warm edge technology is to minimize energy and heat loss through windows.


'Warm Edge' is a term used to describe the type of spacer used to separate the panes of glass in a double or triple glazed unit. Traditional aluminium or other metal spacers tend to have a high thermal conductivity value. If a spacer's material is less conductive than traditional aluminium spacer (i.e. has a thermal conductivity value of  0.007 W/K in accordance with EN ISO 10077), it is considered to be warm edge and will reduce heat loss through the edge of the glazing unit.

Warm Edge Technology Page 2 of 8

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