Helix Wall Ties

Helix Spiroties - Wall Ties and Crack Stitching Bars

Wall ties and crack stitching bars are crucial for cavity wall stability, connecting the outer brick facade to the main building structure. They transfer static and live loads across the cavity, ensuring load-sharing between inner and outer walls. These ties are typically embedded in mortar joints during construction.

Cavity tie failure can result from construction defects or aging processes like wall tie corrosion. Mortar joints hosting wall ties undergo chemical changes over time, reducing the system's life expectancy to as little as 26 years.

Given the longer design life of buildings, retrofitting brick ties may become necessary to maintain stability and load-sharing capacity over time.