Window Stress Crack ((top)) (2025)

In dual-pane windows, these sometimes take a curved, hourglass-like shape. Primary Causes

Stress cracks are rarely random; they are usually the result of one of the following factors: 1. Thermal Stress (Temperature Fluctuations) window stress crack

The first half-inch typically extends perfectly perpendicular to the glass edge before curving or "spidering" in other directions. In dual-pane windows, these sometimes take a curved,

There is no central point of impact, pitting, or shattered "starburst" center. In dual-pane windows

The most intriguing aspect of a stress crack is what you don't see. Unlike a baseball-impacted window, a stress crack has no spiderweb center, no chip, and no point of impact.