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Glass Thermal Breakage
Edge stress, breakage risk & prevention calculator
⚗️ Calculator
🕘 History
📚 Guide
🔲 Glass Properties
Glass Process / Type
Annealed
Heat Strengthened
Toughened
Thickness (mm)
4mm
5mm
6mm
8mm
10mm
12mm
15mm
19mm
Glass Colour / Tint
Clear (standard)
Light Tinted (bronze/grey 10–20%)
Medium Tinted (30–50%)
Dark Tinted (>50%)
Reflective / Solar control
Low-E (IGU)
▾
Edge Quality
As-cut
Arrised
Ground
Polished
🌡️ Environmental Conditions
Outside Temp
(°C)
Inside Temp
(°C)
Installation / Risk Factor
Normal — no obstructions
Closed blinds / internal films
HVAC blowing on glass
Spandrel / cavity installation
Partial exterior shadow
Storage under partial shade
▾
🔥 Calculate Thermal Stress