Low radiation coating film, manufacturing method thereof, and functional building material for windows including the same

摘要

The present invention relates to a low-emissivity coating film, a method for manufacturing the same, and a functional construction material for windows and doors including the same, wherein the low-emissivity coating film includes: a base; a low-emissivity coating layer; and an uppermost coating layer, the uppermost coating layer having a multilayer structure sequentially including, from the low-emissivity coating layer, a metal layer, a metal oxide layer and a metal oxynitride layer.