What’s Vacuum Glazing?

Vacuum glazing is sealed glass unit that contain 0.15mm-0.3mm vacuum space(10-3 Mpa)  between glass panels.The VIG structure contain micro pillars between glass to support the vacuum space,and special materials (Glass solder or metal alloy) to seal the glass unit to ensure long durability.

Vacuum glazing is acknowledged as next generation insulating glass,it reforms the insulating glass structure and improve energy performance significantly.

Why vacuum insulating glass has excellent thermal property?

There’re 3 kinds of heat transfer channel：

  • Heat radiation:High Performance low-E coating reflect most solar radiation while keeping high light transmittance
  • Convection:High Vacuum Space (10 -4pa) eliminate the air convection inside the units
  • Conduction:High Vacuum Space eliminate the heat conduction through air.ONLY conduction is through support pillars,and glass edge

What’s the feature of vacuum glazing?

Vacuum insulating glass features include:

1.Thin and light.VIG thickness varies from 6.1mm- 12.15mm,with light weight,which makes vacuum glazing suit any existing windows frame and widely used in heritage building renovation and windows retrofitting.

2.Excellent thermal performance.VIG U value varies from 0.3-0.7W/M2.k,which is just 10% of single glazing,and even 30%-50% better than triple glazing.

3.Condensation free.Vacuum insulating glass can keep condensation free under 70℃ temperature difference between both side.

4.Soundproof performance.VIG’s soundproof performance can reach 36dbs,and prevent low and middle frequency noise siginificantly,for example traffic noise,engine noise.

5.Safety.Most vacuum glazing comply with EN12150 and ANSI Z97.1 tempered glass standard,it has high strength and will break into small particles to prevent injury.

6.Long lifetime.Vacuum glazing lifetime is expected to reach 30 years and VIG manufacturers offer 15 and even 25 years warranty.

7.VIG performance is not affected by installation angle and latitude.Vacuum glazing U value keep unchanged .

What’s the benefit of vacuum insulating glass?

Benefit of vacuum insulating glass include:

1.Super energy saving.VIG’s thermal property is just 10% that of normal single glazing,and even 50% lower than the most advanced triple glazing which will save up to 60% energy.

2.Save retrofitting time and money.Replacing existing glass with vacuum double glazing is enough to improve your windows performance reaching passive house standard.

3.Avoid tenant lost ,avoid disturbing daily life. Much easier retrofitting process will avoid tenant lost, fast replacing also avoid disturbing daily life.

4.Comply with carbon reduction policies.VIG help your windows performance improvement,enable your building comply with national carbon reduction policies.

5.Much faster payback time..VIG can significantly decrease energy bill ,even though initial investment is high,its payback time can be limited within 5 years and continuous saving energy bill.

6.Increase property value.Your house and building value can be added by vacuum insulating glass.

7.Creating comfortable living environment.VIG can create quiet,comfortable living space.

Why vacuum glazing is the best glass for residential building windows retrofitting?

Vacuum double glazing is perfect for residential windows retrofitting for below reasons:

1.Improve windows energy performance by 100%,help overall building energy rating to new stage.

2.Improve windows acoustic performance by 20%.

3.Decrease windows retrofitting time and costs by about 100%.

4.Vacuum glazing fit any existing windows frame,whether heritage building steel windows,wood windows,PVC windows or aluminium windows.

5.Replacing glass with vacuum glazing is quick and faster,avoid disturbing daily life.

6.Help building owners free from condensation.VIG can prevent condensation effectively.

Why vacuum glazing is the best glass for commercial building windows retrofitting?

Vacuum glazing can be used to replace existing windows glass,and also work as secondary glazing from interior side,the key benefits when been used in commercial building retrofitting include:

1.Avoid tenant lost. The overall retrofitting time is fast and don’t need to clear the building.

2.Retrofitting in silence.The retrofitting work doesn’t require large equipment ,just replace glass from interior side.

3.Fast/ Clean /safe Improvement .All works are finished from interior side, quick glass replacement, no dust and no safety concern.

4.High rent ratio.Excellent thermal property help commercial building owners to increase the rent ratio and high rent fees.

5.Meet government rules.Increase building overall energy performance and avoid penalty.

6.Commercial building retrofitting can get tax credit ,or subsidy from related department.

What’s the price of vacuum glazing?

Generally vacuum glass price varies from USD150-250/SQM.Some high end VIG brands price can reach over USD300/SQM.With the improvement of production technology,VIG price will gradually decrease and finally will have similar price as triple glazing.

Now HaanGlas has the most competitive price among the vacuum insulating glass manufacturers,price is 30-80% lower than other VIG brands because of higher production efficiency and huge supplying capability.

Vacuum glass price is decided by the size varieties,project quantity,and project location.

Do you have agents or distributors?

HaanGlas has distributors and agents in the Netherlands,and UK.

We’re trying to establish agents network worldwide,contact us for more details.

What;s HaanGlas advantage compared with other VIG brands?

1.HaanGlas price is 20-100% lower than other vacuum glazing manufacturers.

2.HaanGlas supplying capability is 2-3 times that of other VIG manufacturers.

3.HaanGlas VIG are produced with one-Step production,which means that the glass is flat,no evacuation holes design.

4.HaanGlas can produce and supply fully tempered glass starting from 6.15mm.

5.HaanGlas VIG U value start from 0.35W/M2.K,which is much better than other competitors.

What’s your vacuum insulating glass supply capability?

HaanGlas annual supplying capability is about 150,000 square meters,which include  50,000 VIG Pro and 100,000 square meters VIG Basic.

What’s the maximum size of your vacuum glass?

HaanGlas vacuum glass Min size 300*300mm, Max possible size 1700*3200mm,Minimum settle area 0.5sqm/pcs.

For safety & quality concern ,our recommended max size are：

3+0.15V+3 fully tempered vacuum glass:1000 *1500mm.

4+0.15V+4 fully tempered vacuum glass:1000 *2000mm.

5+0.15V+5 fully tempered vacuum glass:1500*2500mm.

6+0.15V+6 fully tempered vacuum glass:1600*3000mm.

Can you produce complicated vacuum glazing?

Yes,despite normal 6.15mm,8.15mm,10.15mm, the vacuum glass can be further processed to be laminated vacuum glass,vacuum insulated glass,vacuum fireproof glass,vacuum BIPV glass,vacuum thermochromic glass etc.

How can I judge whether the vacuum double glazing failed or not?

The main problem of vacuum insulating glass is glass spontaneous breakage,whether it’s caused by Nis or uneven pressure,or installation reason.

If vacuum glass failed, in cold winters,condensation will appear inside the vacuum glass.

Haanglas offer 15 years warranty ,if glass failed,please contact us for free replacement.

How long is the lifetime of vacuum glazing?

HaanGlas vacuum glass lifetime is over 25 years,the gutter inside glass will continuous absorb the water and mositure penerated into the glass.After 25 years,the vacuum glass performance may decrease but won’t break.