Replacing double glazed units with energy efficient glazing is an effective way to lead a more energy efficient lifestyle. This is because single glazed windows are the main reason for houses not being kept warm.
Energy efficient windows come in various types and styles. There are different types of energy efficiency levels, which depend on how well heat is contained, the exposure to sunlight, and how much air can escape or come in through the windows.
The benefits of replacing double glazed units are lesser energy bills, a reduced carbon footprint, a warmer home, lesser noise pollution, and a considerable reduction in condensation. Replacement windows can be found in different styles. There are some features to consider in order to improve energy efficiency.
What are the energy efficiency ratings of the window? The ratings of the windows can be looked up on the information provided on the energy label on the window. The ratings are consistent with the efficiency of the window. The higher the rating, the more efficient it is.
How many layers of glass are needed? Double glazed windows need two layered glass with a 16mm gap between them. Triple glazing is also available, and it consists of triple layered glass with gaps.
What is the best glass for energy efficiency? The most efficient glass in double glazed windows is the Low-E type glass. It has a barely visible coat of metal oxide, usually on the inside of the panes. It allows heat and sunlight to enter but reduces the heat quantity that escapes.
What material is used to keep panes apart? Pane separators are fitted around double glazed windows in the internal edges to separate the two panes. Energy efficient pane spacers are usually ones containing lesser metal.
What type of frame would suit the home? This will depend on the home and personal choice. Replacing double glazed units with UPVC (Unplasticised Poly Vinyl Chloride) seem to be the popular choice. They last longer and are recyclable. Wooden frames have lesser impact environmentally, but the downside is that they require high maintenance. Wooden frames can usually be found in protected areas. Aluminium frames are thin and last long. They are also recyclable. Some frames are a combination of materials such as timber in the inner frame coated with plastic or aluminium. It lessens the requirement to maintain the durability of the frame.
Is ventilation needed? Replacement windows are sealed better than the usual frames that have a single layer of glass. Damp can build up, and lack of air movement in the room has meant that some replacement windows would have frames built in, so it allows in a little controlled ventilation.
Water droplets can sometimes form on the external side of new energy efficient glazing windows. The reason this happens is that heat is reflected back into the home from the low-E glass and this causes the outer pane to remain cool.
It may be an idea to scout around and look at the neighboring properties in the area to see the effects of replacing double glazed units. It is also an idea to ensure that there are adequate numbers of opening windows.
