Project Description

Building renovation project uses Prihoda membrane diffusers for draft-free air distribution

The third floor of the university’s O’Keefe Building was to be transformed into new office space for the Facilities Management Department, as part of a complete building renovation. This 68,000-square-foot space was to be divided into open-ceiling neighborhoods, each with a different layout and different air distribution requirement.

The first challenge we faced in designing for this space was to provide textile duct systems capable of maintaining their shape and appearance across the full turndown range of the variable air volume (VAV) system design.

We also had to provide systems capable of delivering warm air into the occupied zone during heating season, while avoiding stratification, that were capable of delivering draft-free air distribution during cooling season as well.

The goal: To provide both heating and cooling from the same diffusers to maintain year-round occupant comfort.

The Solution

For successful VAV operation, we designed a system with full-circumference internal support rings inside the diffusers, combined with our unique internal track tensioning system.

This prevented diffuser sag and pop across the full operating range of the VAV system.