High-rise buildings are subjected to extreme wind-driven rain and structural sway that smaller buildings never experience. Because of this dynamic environment, preventing moisture intrusion is technically demanding.
As a tall building sways in high winds and expands under direct sunlight, the exterior concrete facade develops micro-cracks. These millimeter-wide fissures act as sponges, drawing water deep into the structure.
Sichern Engineering recommends treating all high-rise facades with deeply penetrating silane-siloxane water repellents. Unlike surface paints, these chemicals penetrate the pores of the concrete, reacting to form a long-lasting hydrophobic barrier.