Strengthening and upgrading the structural system to improve fire performance of an existing building is a common building renovation activity. For upgrade projects, design engineers must deal with structures in which every element carries a share of the existing load. Contractors must also deal with critical issues related to access of the work area, constructability of the repair, noise and dust control, as well as the type of construction materials. The latter may not be quite as critical as for new construction projects.

Upgrading concrete systems with matrix engineered mineral board not only improves fire performance but also ensures that high, increased loading is not added to the construction.  Equally important, Promat concrete upgrading systems have been tested in