Louis Sullivan’s most mature skyscraper design has a ruddy terra cotta façade with an elaborate capital comprised of the cornice, the frieze and a row of oculus windows. The Guaranty Building is also known as the Prudential Building.
Scope of work
- A digital video camera was used in conjunction with a remote pan/zoom head on an adjustable boom mounted to a custom-designed trolley. A video monitor allowed the clients to view the conditions of the cornice fascia as the work progressed. A fiberglass measuring tape taped to the fascia served as a fiduciary line, to reference the location of deteriorated areas.
- The deliverables included two copies of the video tape, in VHS format and a roof plan.
- Vertical Access provided a unique and inexpensive solution to the inspection of the cornice fascia. Other solutions, including a swing stage, would have been more time consuming, expensive and potentially damaging to the cornice.
- The video method allowed the architect to view the footage as many times as necessary to fully understand the extent and locations of the deterioration of the terra cotta.
- Louis Sullivan and Dankmar Adler (completed 1896)
- Hodgson Russ Attorneys LLP