WHAT IS PVC-U?
PVC-U stands for Unplasticised Polyvinyl Chloride. PVC-U performs far better than the material in vinyl windows, PVC-U will stand up against damage from exposure to ultra-violet light, whereas PVC (Polyvinyl Chloride) frame would start to degrade and turn yellow when exposed to UV light. Domus only uses VEKA profiles to make our PVC-U frames.