A composite door is, as the name suggests, made of not just one material but a combination of materials – all of which are chosen for their specific properties.
Our own composite doors here at Sovereign Home Improvements, for instance, have a solid timber core but also contain uPVC and glass reinforced plastic. The materials are glued then fused together under incredible pressure to form a solid block. In our case our composite doors are 48mm thick. This is a 10 per cent increase on our nearest competitor, making our doors the thickest – and most energy-efficient – on the market at this moment in time.