Renolet uPVC window frames provide intense thermal and noise insulation. In such windows, a plastic powder called uPVC (unplasticized polyvinyl chloride) is used to make the frames for windows. The first step is to heat the UPVC to a certain temperature and then, mould it as per the required shape. After it has been injected into a mould, several cooling methods are applied to it. Then, the material is cut and prepared, along with other components to be assembled in the window. As uPVC does not have any chemicals or plasticizers, it is stronger than any other material available in the market. uPVC windows are cost effective compared to other wooden windows. Apart from this, uPVC windows are highly durable and possess multipurpose functionalities.