Below ground waterproofing is not always feasible from the outside. In such cases, internal tanking becomes the essential method to protect structures from the inside. It is critical to address early threats such as water ingress, hydrostatic pressure, rising damp, aggressive chemicals and internal condensation — all of which can compromise structural durability and habitability. 

ALCHIMICA® provides internal tanking systems for basement and substructure interiors, delivering exceptional waterproofing performance where external access is limited or requires reinforcement. Our certified HYPERDESMO® technologies form seamless, durable barriers directly on internal surfaces, offering superior adhesion, flexibility and long-term resistance to moisture and chemical attack. These systems are ideal for both new construction and renovation projects where internal containment is required.