| By :
Adrianna Noton
Vinyl windows have long been punted as a good, cheap alternative to aluminium or wooden frames. Often property owners will replace their wooden window frames because it seems like an easier and cheaper option. The trouble is, that home owners do not usually get all the necessary information when making this kind of decision. The general consensus seems to be that vinyl is not the best way to go. While these frames are inexpensive, they do not last longer then 10 years and in the long run work out more pricey then standard aluminium or wooden frames. Aluminium frames are less energy efficient then the vinyl alternative, but the cons outweigh the pros. Most experts will tell you to stick with wood or aluminium. The material is a kind of PVC and the two terms are often used interchangeably. PVC window frames should not be exposed to direct sunlight, which is very difficult to avoid in some areas. In hot and sunny climates the PVC option should not even be considered. Thus, Oakland California passed a resolution to phase out the use of PVC completely. Firstly aluminium or wooden frames block sound much more effectively then PVC does. So if you live in a noisy area or a busy area, wood or aluminium will better ensure a quiet night's rest. In extremely cold areas, the PVC option is also not recommended, as it is not a reliable enough material to seal out the cold air effectively. Frames tend to be much softer then their aluminium counterparts. This means that if there is a larger window space the frame needs to be reinforced with an internal metal extrusion. The other trouble with these frames is that it expands and contracts with changing temperature. Heat builds up within the frame and in response to this heat the vinyl will soften, warp and twist. The sun will also yellow the PVC giving it a rather worn out appearance. Then as temperatures cool down, the PVC will contract and become very brittle. PVC has so many negative traits that in 1999 General Motors made the decision to dispense with the material entirely. There may be no vinyl used on any of its motor vehicles world wide. In their statement GM said this is due to the cracking, warping, and fading that is so common with PVC. Their decision was also driven by the leeching of plasticizers that potentially poses a health risk. PVC contains plasticizers to improve its performance. Plasticizers are an oily colorless substance that mix easily with PVC particles. There are claims that these plasticizers leech out of the PVC with and affect the health of human beings. Although, the plasticizers do not leech out easily and the health risks are contested. The PVC that is used to make window frames is not mixed with plasticizers. It is known as unplasticized PVC or uPVC. This material is commonly used in the building industry not only for frames but also for siding and weatherboarding. Vinyl windows just have so many problems that they cannot be recommended to most uses. Most experts would agree that consumers should use more money, and buy wood or aluminium. In the long run you will save on upkeep.
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