Insulated Glass

Insulated Glass Features

Thermal Insulation

The air spacer has a very low thermal conductivity with around 0.027, it helps IGU glass to block the heat transfer.

Normal float glass U value is around half of the monolithic glass, if glass with low-e coating, the U value is reduced. hard coated low-e and soft coated low-e both have the different value .

The soft coated low-e is with various type and color, glass with Single silver, double silver or triple silver low-e get very good U value so called it energy saving glass.

From above data sheet, we can see if glass with argon filled in ,the U value get better.

Insulated glass with soft coated low-e, the effect on thermal insulation is better.

Any more data needed go to download. Lanjing Glass has the excellent experts to help calculating the glass data including VLT SC value Contact us.

Sound Insulation

Insulated glass have the acoustic function, especially both sides different thickness, or combined with laminated glass.

Dew Free

Single panel glass outside surface always get the dew in winter cold area, this never happens to insulated glass. Insulated glass is like a sealed cavity which boned with aluminum bar and glass with desiccant. Insulated glass dew point up to -40℃,if filled with argon ,dew point decrease to -80℃.

Insulated glass dew point testing.

Applications of Insulated Glass

Insulated glass is so popular used since it’s invented. 

Glass Curtain Walls

For better energy saving, to reduce the demand of air conditioning and heating.

Windows and Doors

Also reduce the introduction of external noise, improving the quality of living and working environments.

Vehicles

Insulated glass used in vehicles such as cars and trains can provide better sound insulation, reduce noise interference during driving, and effectively insulate, improving passenger comfort.

Home appliance

such as refrigerator doors and air conditioners can improve their insulation performance and reduce energy consumption.

Refrigerator door glass.

The Gas In the Insulated Glass

Air Space

It’s the common option for most insulated glass, there is no any special processing, the normal insulating line is filled with air gas.

Argon Space

Argon is an inert gas with poor thermal conductivity, filling in argon gas helps to reduce heat transfer, also can resist air pressure, avoid glass suction, and improve the wind pressure resistance of glass so that enhance the glass strength.

For the glass which size too big ,it definitely need argon filling.

Lanjing has advanced argon gas filling machine filling the argon on insulating production line automatically,can reach 90-95% concentration of the insulated spacer.

The Materials Used In Insulated Glass

Glass Spacer

Aluminum Spacer

It’s the tradition one used in insulated glass, the advantage is it’s with various thickness, inexpensive, the disadvantage is that it’s with a relative high heat conductivity. The thermal conductivity is approximately 0.112W/K.

Thermal Break Spacer

Also named warm edge spacer, it is made of PP PVC、 plastic materials combined with stainless steel. The thermal conductivity is approximately 0.007W/K. much better than normal aluminum spacer. The main brands we used are Alupro,Technoform,Fenzi,Lisec.

TPS

It’s short of Thermoplastic Spacer, it’s the one without metal material. The plastic is with very low thermal conductivity near to zero, the glass U value is much better. Below is the normal aluminum spacer compared with TPS spacer.

Decorative Bar

The decorative bar material can be aluminum or wood, the shape is rectangle and rhombus, the width for rectangle shape can be up to 20/30/40mm, the max width for rhombus is 18-19mm.

Lanjing makes lots of the decorative glass for exporting.

Capillary Tube

Capillary tube is a stainless steel tube with around 1mm diameter,it’s installed on insulated glass edge(from aluminium spacer bar), there are around 50mm part exposed outside to keep air flow inside and outside glass.

it is used for balancing the air pressure inside and outside of insulted glass to avoid glass contract or expand after installation.

U Channels

The U channels normally are aluminum material, embedded into the sealant edge,  the air spacer is at least 18mm and the silicon sealant will be around 18-25mm depth.

We have made the U channels with smaller length around 50mm and longer one same size as glass edge.

Stepped Insulated Glass

For some glass curtain walls or skylight, need the insulated glass both sides glass to be different, it’s designed to meet certain structural requirements, such as the corners of hidden frame glass curtain walls.

We make the stepped glass often, it becomes normal in building glass.

Blind Insulated Glass

It’s to installed the blind between the panes of glass,It has good sound insulation, heat insulation and fire resistance. The blind can be operated with hand working and remote control.

Production Capability of Insulated Glass