We know that single-layer glass doors and windows have a cooling (heating) consumption in the use of buildings, while the heat transfer coefficient of insulating glass is only 1.63-3.1m/w.k, which is 29% -56% of that of single-layer glass. Therefore, heat loss can be reduced by about 70%, greatly reducing the load of cooling (heating) air conditioning. Obviously, the larger the window area, the better the energy-saving and energy-saving effect of hollow glass doors and windows.

Hollow glass doors and windows are made by sealing two pieces of glass with sealing strips, creating a vacuum in the middle, and then filling them with inert gas. This structure provides good sound insulation and heat insulation performance for hollow glass doors and windows. The cheap and low-quality "hollow" glass doors and windows simply glue two pieces of glass together without undergoing the above treatment, so they do not have the sound insulation and heat insulation effect that hollow glass has.

Today, the manufacturer of hollow aluminum partition strips will teach you how to distinguish the advantages and disadvantages of hollow glass doors and windows.

One is to check if the glass is sealed. Many low-quality hollow glass doors and windows have two pieces of glass glued together with black PVC foam strips, which do not have a sealing effect. High quality hollow glass doors and windows are glued to the glass with specialized sealing strips, which can ensure good sealing performance.

Secondly, there is an aluminum partition strip between the two pieces of real hollow glass, which has many air holes and is filled with desiccants to absorb moisture in the gas and prevent the phenomenon of "foggy" glass doors and windows after being heated. Poor quality "hollow" glass does not have these devices.

Then, conduct on-site testing on the sound insulation effect of doors and windows. The sound insulation effect of high-quality hollow glass doors and windows is very good, while the sound insulation effect of low-quality "hollow" doors and windows is average.

The differentiation of glass quality is relatively small, and glass with no impurities or bubbles and a smooth surface is considered a high-quality product. Consumers can observe the glass from the side. The glass is flat and has no color difference. When looking through the glass, if the item is not deformed, it is a qualified product.

Distinguishing the quality of profiles: High quality hollow glass doors and windows use high-quality profiles, while low-quality hollow glass doors and windows use low-grade profiles. Some even use recycled profiles that have been tampered with (shoddy). High quality profiles look smooth and delicate on the surface, flat and clean, with even colors; No cracks or bubbles; There is no phenomenon of fracture or open welding at the welding site; The hardness and thickness are sufficient, and hitting the surface of the profile with a hammer will not cause cracking. Poor quality profiles have uneven colors, bubbles, and impurities, which can rupture when struck with a hammer, and even deform when pinched by hand.

Distinguishing the quality of auxiliary materials, the main types of auxiliary materials are sealing wool strips and sealant strips. High quality sealing wool strips should have neat, tight, and elastic hair, which can be waterproof and dustproof. There is a bottom plate between the two wool strips, which can extend the service life of the wool strips. Sealant strips are also important. High quality adhesive strips should have a smooth surface, neat edges, and high elasticity. They should be pulled continuously by hand, and after being released, they should basically return to their original state. Hollow glass doors and windows are sealed with high-quality adhesive strips, which can ensure a good sealing state for a long time. Otherwise, after three to five years, air entering the hollow glass doors and windows will affect their insulation and sound insulation performance.

Distinguishing hardware accessories and seeing them clearly