What is NFRC?
EN673 is the European standard of measuring a U-Value for glass that is used in a building. All glass companies in New Zealand need to provide the U-Value of their glass solutions in relation to EN673 so that consumers can make informed decisions on the thermal performance of their glass.
People who asked this question looked at these questions as well
Free Online Glass Selector
Use our FREE online glass calculator to help you find the right glass for your windows.
Glass for windows can be tricky, especially when there are so many things to think about. At Viridian we love glass and have created a tool to help you select the right type based on you, your house and the environment you want to create