Thermal crack or fracture is caused by the excessive heat generated between the panes of dual pane insulated glass. The occurs when a glass unit heats up under excessive heat and causes a thermal fracture on the inside pane.
Most insulated glass is manufactured to withstand the heat loads experienced in the D/FW area.
On occasion a thermal crack can occur after the installation of window tint. A qualified Window Film dealer will have the expertise to install the correct window film that will not cause a thermal crack.
The only occurrence of a thermal crack that could occur after the installation of the appropriately rated window film is if there is already an imperfection on the edge of the glass. In this case this will show itself within first year. Most window films provide for a 5 year thermal crack warranty for this reason.
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