This specific type of sealant, characterized by its distinctive profile, is commonly employed to seal gaps and crevices around doors and windows. The cross-sectional resemblance to the letter “L” allows it to effectively bridge uneven surfaces and provide a tight seal against air and moisture infiltration. A typical application involves fitting the longer leg of the “L” against a door or window frame, while the shorter leg compresses against the moving component when closed.
Effective sealing significantly improves energy efficiency by reducing drafts and minimizing heat transfer. This translates to lower energy consumption for heating and cooling, leading to cost savings and a reduced environmental footprint. Furthermore, it enhances indoor comfort by preventing cold spots and drafts, and also protects against water damage, pest intrusion, and noise pollution. While specific origins are difficult to pinpoint, its development likely coincided with increasing awareness of energy conservation and advancements in building materials.