How can I tell if a vacuum glazing is in good quality?
Some possible ways to tell if a vacuum glazing is of good quality are:

- Check the thermal transmittance (U-value) of the glazing. If you get a lower U-value of the vacuum glazing you purchased, that means the better the thermal insulation performance vacuum glass has.
- Look for any signs of cracks, chips, or scratches on the glass surface. These can compromise the vacuum seal and reduce the efficiency of the glazing.
- Check the position of the microspaces in the vacuum cavity to see if they are out of their original position.
- Verify the manufacturer's warranty and certification. A reputable manufacturer should provide a long-term warranty and comply with relevant standards and regulations.

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