Corvallis, Oregon

  Included in the first phase of the project was the removal of a coating on the second and third floors and fourth floor attic.  After the coating was removed from the south side, all the stones were mapped to determine the size and layout, the severity of the degradation, the location of major cracking and the bedding of the stones.  During this process, samples were taken of both good and bad stone, and x-ray defraction and scanning electron microscope testing was performed to determine if there were geological differences.  This testing was performed to explain the weatherability of the stone.  Destructive testing was also performed on the inside to determine how the stone was tied to the interior concrete frame.  The results of this testing and a worst case scenario restoration budget lead to the design of temporary measures to keep the  building in continuous use and a feasibility study of the building and its systems which is occurring presently.