From a thermal point of view Timber performs much better than Aluminium. Timber is a dense material and as a result is less conductive of heat, this means it insulates much better than Aluminium which allows most of the energy to pass straight through; in fact you can feel the difference when holding your hand up to an Aluminium frame compared to Timber frame.

Most people prefer the feel that Timber windows create in a home; timber is a naturally beautiful product that can be easily manipulated to achieve stunning results. People that chose timber products do so because of the feel that it creates in a home. Warmth, craftsmanship, flexibility and durability.

Also worthy of noting, Timber is a relatively environmentally friendly resource compared to other materials such as Aluminium, which needs massive amounts of energy to change the raw resource into in to a practical building material. The by-product of this process is the creation of harsh pollutants, which are much more powerful greenhouse gases.

Timber is deemed to be relatively environmentally friendly resource due to the fact that during their growth, trees absorb carbon dioxide from the atmosphere and inturn release oxygen, the carbon that is absorbed is then permanently sealed inside the tissue of the tree. This process reduces the amount of carbon dioxide in the atmosphere and greatly reduces the greenhouse effect.