What Is The U-Value Of Double Glazing?
The typical U-Values found on windows can show the amount of heat loss and the rate that the heat loss takes place. Therefore, you can use it to show the overall performance of the entire doors and windows how they retain heat. And come up with preventive measures to cab heat loss if they are not effective at serving your energy bills. Here is more on what is the U-Value of double glazing.
All your new or replace uPVC, timber windows or aluminum need to meet a minimum rate of C Window Energy or U-Values of less than 1.6 Wm2K. If you bought your glazed windows and doors before the year 2006, there is likelihood that they are fitted with metal spacer bars on their sealed unit and have some air space in between them. All the current double or triple glazing have low-emissivity, warm edge spacer bars or to some extent Krypton between the glass area. All these materials used for coating facilitate a low U-Value on the current modern windows
In the window Energy Rating Scheme (WERS) you can be able to tell how the U-Values ratings of your double glazed windows and doors are tested. The lower the U-Values comes from the test, the greater your window will be suitable to give your home the needed heat resistance. This will therefore means you will be having better thermal insulating value.
When you are looking for materials for a construction project, always be on the lookout because the figures that may be quoted to you could be misleading. For instance, you could be told that the U-Values of a single component like the glass part and not the entire figures. Ensure that you request for the availing of the overall U-Values for both the frames and glass.
There is a regulation n document L(2000) of UK Building Regulation that states that whenever you are about to replace your doors and windows. Ensure that they have a U-Values of below 1.6 W/M. The double glazed units on their part should have a pane U Value of 1.1 W/MK