Yes, the condition of the edges of the pane of glass is extremely important. As the tensile stresses induced in the glass are located at the edges, the breakage strength of the glass is in the main related to the extent and position of flaws in the edge.

Thermal safety checks usually assume good quality, as-cut edges as minimum.  For any project where Pilkington products have been specified, a thermal safety check can be undertaken using the Pilkington Thermal Stress online calculator available via MyPilkington.  To register for MyPilkington, please click here.