Doors and Windows are an important part of interior decoration, it bears a series of important parts such as ventilation, lighting, safety, heat insulation and so on, basically it can be said that it is an indispensable part. So with the national team's energy-saving and environmental protection requirements are getting higher and higher, so the doors and Windows also extend a constant value, which is the K value said by the expert, then what is the K value, we daily in the selection of Windows how to choose a good door and window through the K value, today Xiaobian will explain one by one, hope to help you!

What is "K" for doors and Windows

The so-called K value of doors and Windows is actually the heat insulation coefficient of doors and Windows, if you do not know what is the heat insulation coefficient, it can be simply understood as the ability of doors and Windows to isolate heat. Therefore, the higher the K value, the higher the insulation and insulation performance of doors and Windows will be, naturally in line with the national environmental protection indicators, and the higher the K value means the better the thermal insulation effect, so for our summer air conditioning room will be faster and cooler, naturally the electricity will be lower. This is the benefit of high K value doors and Windows, which is in line with environmental protection and can save money, and it is indeed cost-effective.

Doors and Windows K value grade division

The K value of doors and Windows will actually be graded, for example, according to the network, the K value is generally divided into 10 levels, but we should see clearly that the higher the level, the better the K value. Under normal circumstances, the lower the K value, the better the insulation effect, while the K value of grade 10 is lower than 1.1; On the contrary, the K value of level 1 is greater than 5.0, so the owner should pay attention to the window selection. But the higher the K value, the higher the cost of this door and window will be, so the owner can choose their own doors and Windows according to these details,