What is the heat transfer coefficient of aluminum alloy for building doors and windows?

Broken bridge aluminum alloy doors and windows have good thermal insulation performance, and the heat transfer coefficient of insulating glass can reach below 3.0W, which is a medium and high-grade energy-saving thermal insulation door and window with wide application range at present. K value is less than 3.0. It is a middle and high-grade energy-saving thermal insulation door and window which is widely used at present.

The heat transfer coefficient of ordinary aluminum alloy doors and windows is relatively large, even if insulating glass is installed, its heat transfer coefficient can not reach the standard of energy-saving doors and windows for civil buildings in northern China.

Ordinary aluminum alloy doors and windows can be used for stairs, corridors, balcony doors and windows, balcony closed windows, or industrial plants with low thermal insulation requirements.

Extended data

1, aluminum alloy profile

Uncoated products: it can be divided into hammer aluminum plate (irregular pattern), embossed plate (regular pattern) and pre-passivated and anodized aluminum surface treatment plate.

Paint products:

According to the coating process, it can be divided into: spraying products and coating before roller;

According to the types of coatings, it can be divided into polyester, polyurethane, polyamide, modified silicon, epoxy resin, fluorocarbon and so on.

2. Aluminum-plastic board

3, aluminum veneer

4, aluminum honeycomb panel

5. Aluminum honeycomb perforated sound-absorbing ceiling board

6. Fluorocarbon aluminum plate

References:

Baidu encyclopedia-heat transfer coefficient