RSH Architects was commissioned by the Township of Upper St. Clair to renovate and expand their existing library as part of overall Municipal Complex Additions and Alterations. The firm’s space analysis, in conjunction with studies provided by the Carnegie Library Technical Services Branch, indicated the need to increase total space from the existing 10,400 square feet to 21,000 square feet.

After several attempts to utilize other existing areas of the municipal complex, it became clear that expansion beyond the existing structure was required. An addition to the existing building presented several design challenges. The floor-to-floor heights were often as little as nine feet, requiring careful placement of lighting and paths of mechanical equipment.

The existing concrete joist floor framing system was continued into the addition to provide maximum structural support, while affording coffers for lighting and acoustic control. North orientation rendered excellent natural lighting for reading and study areas. Stack spacing was a critical factor in bay and joist sizing. The low lying site required flood protection for activities on the ground floor, therefore stacks were located above that level, which was then developed into meeting, multi-use and service areas. Identification of the library and its point of entry are visually reinforced by the dominant arch, a reflection of the original building portico.