Cracks in masonry arise in areas where stress concentrations occur, such as around door and window openings.
The Sigmafor wall reinforcement system fully absorbs tensile and shearing stresses around door and window openings.
It is recommended to provide two reinforcements above the door opening, and both through the window infill panel and above the window and have them continue in order to form a complete ring reinforcement.

 Sigmafor - spanningsconcentraties

Sigmafor applications