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Alexander Windows commits to an environmentally friendly future

In an attempt to reduce its carbon footprint, Alexander Windows is committing to various initiatives aimed at helping the environment in the short, medium and long term.
The Hazel Grove Company previously used a roller-crusher to compress 20 tons of waste per week from old frames and glass before shipping it to designated landfill sites in [...]

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Window Energy Ratings – a dummies guide!

Window Energy Ratings (WER’s) have been introduced by the grandly titled “British Fenestration Rating Council” in an attempt to show the total energy performance of a window by introducing two factors alongside U values.  The most important is solar heat gain (g) and the other, which is largely insignificant on Kömmerling windows, is air permeability [...]

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Understanding what acoustic glass actually does

Unfortunately there is no such thing as sound-proof glass. You only ever achieve that in a vacuum or outer space. The best we can do on planet Earth is to significantly reduce the amount of noise that travels through a window by using the right materials and a knowledge of science. Equal thicknesses of glass [...]

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Why do I sometimes get condensation on the outside of my windows?

In short the condensation is caused because the Low E Glass is doing its job so well and reflecting heat back into the room.
The following is an explanation from Pilkington of the phenomenon of External Condensation.
Condensation on external glass surfaces
External condensation (dew) can occasionally occur on highly insulating glass units in temperate climates. Such occurrences [...]

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