Vinyl Windows and Glass Doors
> Overview. Vinyl windows and doors are the third largest application for vinyl accounting for 4% of resin use. The use of vinyl windows has grown dramatically in recent years, accounting for approximately 56% of all residential units installed in 2000. Vinyl use in windows has grown because of customer demand for improved energy conservation and low maintenance.
> Energy efficiency and reduced CO²emissions.
Manufacturing phase: Studies show that PVC vinyl windows require two-thirds less energy to manufacture than aluminum windows. The use of vinyl over alternatives in window frames saves the United States nearly 2 trillion BTUs of energy per year – enough to meet the yearly electrical needs of 20,000 single-family homes.
Use phase: PVC is an efficient insulating material for heat and cold, which means that vinyl windows maintain an even temperature, keeping them comfortable to the touch and decreasing condensation caused by indoor/outdoor temperature and humidity differentials. The design of vinyl window frames further enhances their energy efficiency by creating chambers in the frame that provide additional resistance to heat transfer and insulating air pockets.