Even thermal crack II

Evenly distributed thermal load - from low to high intensity
Type of glass

Polished glass, figured (ornamental) glass, rolled sheet glass, laminated glass. In case of armoured glass, deviations are possible due to the grid.

Examples

Partial covering with inside blinds in close proximity to the glass;

Dark sports on the glass (stickers, advertising, etc.);

Big leaf of a plant or similar abject from the inside, directly on the glass.

Beginning

Right-angled edge crack;

Right-angled transition angle;

No curvilinear cracks in the beginning.

Lines of process

Straight line of edge crack, change of direction near the zone of cold / heat,

Possible breakage near the zone of cold / heat.

End

Straight line;

Without an angle, most often progressive cracking.

Other features

Frequently curvy cracks;

Possible deviation of cracking edges;

Curvy lines can form, first of all in the zone of the first change of direction.