Traditional concrete balconies, slab edges and rooftop connections cast as structural extensions of interior concrete slabs cause age-old problems and create new ones.

As in the past, they rapidly conduct heat from warm interior structures into the cold exterior environment with unfortunate efficiency, wasting energy and pumping carbon into the environment at high rates.

The advent of air-tight building envelopes, however, has worsened the problem. Because interior humidity levels during cold winter months is now sufficiently high for cold penetrations on the interior side of the envelope to form condensation and mold, which can grow and become airborne months and years before it becomes visible on room surfaces, exposing the developer to significant remediation and personal injury liability.

Isokorb® structural thermal breaks from Schöck can eliminate this problem by insulating the interior from the exterior side of the casting at the building envelope, while providing structural support equivalent to that of traditional slab extensions.

The high-strength cast assembly cuts energy waste by up to 90% at the penetration, and up to 14% for the building overall, passively, for the life of the building.