University of Pennsylvania: College Hall

Scope of Project

Restoration of the exterior facade of one of the oldest buildings on the campus of the University of Pennsylvania. The project required the replacement of the sash with sash that reproduced the original articulated details. In many cases the sash had been replaced in prior years with sash that were not compatible with the building. Several of the existing sash had been reproduced eliminating many of the details of the original design. The replacement also required the use of the existing weights and chain balance system.

Construction

Working closely with the client and the design professionals, shop drawings were produced showing the details necessary to fabricate the windows to there original design using single glass as the glazing medium. Manufactured to a sash thickness of 1-3/4". The sash was milled to receive the hardware for a weights and chains installation as per the client's requirements. Each replicated sash was constructed with an additional 1/4" in height to allow the scribing of the bottom rail in the event the existing openings were not square. The original weights and chain balancing system was reused with replacement chain weather-stripping parting bead and interior stop. The units were manufactured from Northeast White Pine, and treated with a preservative, Water repellent. Prior to putty glazing the sash was primed.