Nowadays thousands of people have chosen plastic windows. They are indisputable under the characteristics surpass usual wooden constructions and are the guarantor of quality, comfort and heat in apartment. But how PVC windows influence ecological safety of the person? Safety of plastic windows consists not only of durability and reliability of a profile, but also from those materials of which it is produced. Thus dangerous vapor of oil products is at the bottom of many serious diseases. Metal-plastic window consists of polyvinylchloride (PVC) which is a powder in pure state. PVC consists from ethylene (47 %) and the compounded chlorine (57 %) which is received from table salt. The PVC profile turns out by addition of stabilizers, modifiers, pigments and auxiliary additives to this powder. Lead is used as the stabilizer in PVC profiles. This causes anxiety of buyers. But in ready plastic windows lead can’t evaporate at all, since it’s in biologically passive and chemically compounded conditions. But nevertheless the European firm manufacturers offer ecological profiles where calcium and zinc compounds are applied instead of lead.
Plastic windows are better at fire occurrence situations than their wooden counterparts. PVC doesn't ignite burning process occurs many times more slowly than tree burning. Therefore the PVC profile serves as a certain obstacle to fire distribution. During fusion of PVC profile hydrogen chloride is disengaged. Because of the pungent smell it is easy recognized even in its small concentrations. Carbonic oxide also appears during the burn processes of all organic materials. But dangerous concentrations of carbonic oxide during PVC fusion are reached through very long periods of time. Therefore various baizes about harm of plastic windows are just fiction. There’s no threat for health of the person is present both at operation in usual conditions and at fires and other extreme conditions.
