Friday, 1 March 2013

Thermal Break Windows


In today’s economy, conserving energy has become a top priority in almost all households and organisations. With the rising cost of energy bills, as well as the simple fact that most people are aware of the harm fossil fuel causes to the environment, people are always looking for ways to reduce their energy consumption.

Despite this, most consumers are unaware of the fact that they can save energy by simply utilising Aluminium Thermal Break Windows. These are apertures specifically designed to conserve energy by reducing the need of air-conditioning throughout the year.


Essentially these Aluminium Thermal Break Windows reduce the amount of heat or cold entering the habitable area by use of a separator material. This is a rigid, low thermal conductive polyamide or polyurethane. The aluminium frame would be split into two pieces and the separator material would then be bonded in between them. The idea behind this is to prevent temperature transfer through the frame itself.

The separator material provides the profile with several benefits; the material itself can be up to 1000 times less thermally conductive than aluminium and up to 100 times less than steel. It helps to prevent condensation on the inside of the frame itself which in turn helps to inhibit the growth of mould, especially within gypsum walls. The thermal break mechanism also has the added benefit of dampening vibrations. This results in the reduction of sound transmittance.

The frame itself is not the only factor in an Aluminium Thermal Break Window. One must also take note of the glass itself. The frame could be coupled with standard double glazing glass, however, it would be more beneficial to utilise Low-e Double Glazing Glass, Solar glass or, for optimum efficiency, a fusion of both Low-e and Solar Glass.

The Low-e glass would be metal coated on one side with the use of either Pyrolytic coating, which is a hard coat, or sputtered coating which is a soft coat. This is a microscopically thin layer and is near invisible to the naked eye. It acts as a filter to block long wave radiation, such as that of infrared heat, and allows short wave radiation, such as UV and Visible light to pass through. 

By coupling solar glass and Low-e the filtering power is increased significantly, blocking up to 50% more unwanted solar energy than standard clear glass, and up to 40% more than even dark tinted glass. This provides the benefit of protection without sacrificing lighting or window size.

This is beneficial as in the summer months the thermal radiation is reflected away from the room and the short wave radiation passes through, which is then absorbed by the furniture within the room. As a result, the sun would warm up the furniture in the room yet keep the room itself cool.

In the winter months, the warmth of the room would want to naturally escape out into the cold. However, the Low-e glass would reflect the thermal radiation back into the room, keeping it warm.

As a result, Aluminium Thermal Break Windows help to keep your habitable area well lit as well as maintaining the house or office at a comfortable temperature throughout the year with minimal need for air-conditioning. 



Mark Vassallo - Managing Director

Aluserv Building, Triq in-Negozju
Mriehel Industrial Estate, Mriehel

Tel: 21449878 | Fax: 21449877
www.servgroupmalta.com