Murphy / Jahn
Peller & Associates
7-story ( 75ft), 75,000 sqft
Glass Fin Systems, Glass Fin/Point-Fixed Glass, Point-fixed Clamped, Skylights
Design/build program including 30,000 sqft of custom vaulted glass roof and glass fin wall; interior glass elevator enclosure, handrail, stairs, wash basins, and ceilings
Exterior Glass: low-iron insulated laminated with custom frit for roof glass, insulated glass with low-e coating for glass fin walls, laminated glass fins, all glass point-fixed, non-perforated; supplied by Eckelt
Interior glass: low-iron tempered monolithic
This building rises like a jewel box above its neighbors in a Chicago suburb
In granting an AIA Design Excellence Award (Chicago, 2005), jurors agreed that this building is at the leading edge of design and technology, in the best Chicago tradition. The seven-story box is overlaid with triangular screens that form loggias to the street and serve as projection screens for the company’s logo. The exterior wall is a single-shell, insulating glass facade between the slab edges. Concrete ceilings are exposed, with mechanical systems placed beneath raised floors. The interior is organized around a full-height atrium with three glass elevators and topped by an innovative glass roof. At the top two levels the atrium connects to a two-story light-flooded showroom for the company’s products.
Design/build and engineer-of-record services were provided for a portion of the project, including a highly innovative glass roof and glass fin walls totaling over 30,000 square feet. Custom roof trusses were fabricated and rigged in factory, then installed on the roof using a rolling gantry. The roof structural system incorporates a laminated glass beam element and intermittent cable trusses to lighten the structural profile. Roof cladding glass is insulated laminated panels with an offset ceramic frit on two interior surfaces. The Enclos design team developed an innovative point-fixing system utilizing a “pinch-plate” or clamping spider assembly that eliminated the need for drilling holes in the glass, thus providing considerable savings to the project. Low-iron glass was used throughout to further enhance transparency.
Laminated glass fins provide wind load resistance to the vertical facades, and integrate the primary entry portals into the building. A major component of the scope on this project was interior design that included floor, ceiling and handrail glass. The cores for the glass elevators are enclosed in glass surrounds, and even the elegant fritted glass counter tops in the lavatories were provided as part of a comprehensive design/build program.