Example Two: Portman Square

The input from Lightweight’s design team was crucial to overcoming some of the complex design challenges in this project, making difficult details easier to build whilst reducing construction time and cost.

One of the main problems presented on the project was the need for a deflection allowance of plus or minus 50mm at the partition heads on the 7th and 8th floors. This detail is difficult enough under any circumstances but the challenge was further compounded by the need to incorporate other design features. Lightweight Drywall were required to form shallow bulkheads within which were situated slot diffusers connected to ductwork above and still maintaining the large deflection head requirement in the adjacent partition.

Such coordination of detailing is critical if a high level of finish is to be achieved, and Lightweight Drywall’s design details enabled all parties to understand how these tricky problems were to be overcome.

The acoustic requirements of the internal space to the residential floors, were of paramount importance and Lightweight Drywall helped to develop design details for junctions between the party walls and the surrounding structure, this included abutments to window mullions and inclusion of services. The partitions were acoustically tested to ensure compliance, achieving excellent results.

Lightweight Drywall also assisted in designing 2 hour fire rated enclosures around stairwells and double height walls in reception areas which needed to interface with glazed panels and to contain movement joints allowing the required structural deflection, whilst remaining sympathetic to the original architect’s concept.

lightweight drywall © 2009