What can I do about PVC windows, fitted about 17 years ago, that seem to be going a dull yellow colour?
A. There are now several products available for painting uPVC, including one from ‘Dulux,’ http://homeowners.duluxtrade.co.uk/ALLTRADE:1883994681:DFinity.pfEihfdobekegnjel5ejbhjfbpdgomklcadpke and another from Kolorbond, http://www.kolorbond.ltd.uk/retro.htm both Companies will supply only for you to apply, or put you in touch with a recommended contractor. The cause of fading and discolouration of uPVC products is Ultra Violet Light, present in all direct sunlight and worsening as the ozone layer becomes depleted. This can be exacerbated by environmental pollution such as acid rain and, in exposed coastal areas, by salt in the atmosphere. The UV Light can cause the surface to dull, fade and yellow. Environmental pollution can cause the surface to break down. In older products this is often due to the inclusion of recycled, reground material in the extrusion. Modern Double Glazing is generally manufactured from ‘virgin’ materials and advances in technology allow the inclusion of UV Sta
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