Quebec is experiencing a cold, snowy winter that started early. While most Quebecers wish to see it end quickly, the storms keep piling up, leaving us with a wonderful white landscape to admire. These conditions can promote the occurrence of thermal breakage.  

DEFINITION



Like all materials, glass expands or contracts when subjected to temperature variations. When glass is heated, the expansion caused by the heat is greater at the center than at the edges. This difference in expansion creates stress on the glass. Sometimes, this phenomenon causes a break on the inner pane. This is known as thermal breakage.

The origin of the crack is located at the edge of the glazing (in the coldest zone) and the fracture plane is perpendicular (90º) to the edge of the glazing.

PREVENTION

To reduce the risk of thermal breakage, follow these tips:

Minimal space: Provide a minimum space of 40 mm between the glazing and the blinds or curtains.

Air circulation: Always maintain good air circulation near the glazing.

Lajeunesse offers the following warranties on thermal breakage:

St-LaurentCollection : Thermos 1 year / labor 2 years

D’Autray Collection : Thermos 10 years / labor 5 years

Thermal breakage remains relatively rare. Annually, one thermal breakage occurs for every 15,000 to 20,000 thermos.