Glass Quality Guidelines
All our glass products are made to the highest standard. Due to the processes that glass has to go through and its properties, appearance can be vary. The following guidelines set out the tolerances you can expect, this has been created with information from our manufacturers and also the Glass and Glazing Federation (GGF)
When viewing glass:
The glass should be in a vertical plane and at a right angle from the room side
No nearer than 2 meters - 3 meters is perect
Use natural daylight - not direct sunlight
The glass should be dry
Look through the glass not at it
Any defects should be identified within 2 seconds
Bubbles, stones and seeds
Spots and pinholes in the
Uniformity defects and stains i.e. scuff marks, heavy scratches, lines deposits impressions, etc are allowed as long as they are not visually disturbing.
Glazing technology is continually evolving; therefore new units installed alongside existing units may not exactly match. This is not a fault.
Condensation forming on the outdoor face is a positive indicator of the thermal efficiency of the IGU. This is not a IGU fault.
Condensation forming on the glass surface facing the room is due to warm, moist air trapped in the building. This indicates a problem with building itself suggesting that increased air ventilation is required – the condensation on the glass is a symptom not a fault.