Rehau managed to most fully realize all the advantages that plastic double -glazed windows should have. You can talk endlessly about Rehau windows. They are sealed, which provides the highest level of thermal insulation and can significantly save on heating in the cold season. The level of protection against echoing depends on the number of cameras in the double -glazed window. Thermal insulation is successfully combined with isolation from penetration from the street of noise and sharp sounds. At the same time, the maintenance of such plastic windows is not difficult — after all, polyvinyl chloride practically does not absorb pollution and does not require painting.