Heat loss phenomenon
Heat loss occurs through 3 processes: Radiation, Conduction and Convection.
The pictures below illustrate how these 3 processes contribute towards heat loss from a building.
Traditional thermal insulation materials, even in double thickness, do not prevent heat loss by radiation, which accounts for up to 75% of all heat loss. Whereas traditional materials allow almost 100% of heat radiation through, Aluminium Screen is able to limit the thermal radiation loss by up to 97%. By analysing the heat loss phenomenon, ALUFOAM thermal insulation has been developed to the adequate thickness of 0.5cm. Double layering is not necessary, making the material very cost efficient. The most important aspects of the structure of ALUFOAM are the two aluminium screens, isolated from each other, with the correct thickness of polyethylene foam. The pockets of air in the foam minimises heat loss by convection, whilst the polyethylene itself minimises heat loss by conduction.
In order to better understand what makes this material the best in its class, let’s do a comparison with a window. Let’s imagine that the ALUFOAM aluminium screens are two window panes. Using only one screen (one pane of glass), the warm humid air inside a house comes into direct contact with the cold glass, causing condensation. Similarly, using one aluminium screen with foam creates the same but slower process of condensation. Using two screens, or two window panes, prevents the condensation but does not prevent heat loss by convection and conduction. The air pockets in our polyethylene foam between the two aluminium screens minimise heat loss by conduction and convection. This structure of insulation guarantees temperature control and condensation prevention regardless of the time of year, for maximum comfort.
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