Sandstone floors are in a more precarious condition than the marble floors because of their high porosity that lock moisture inside. As a result, the red sandstone floors are chipping at many places. ASI has put barricades near the Mehman Khana to stop vi
Sandstone floors are in a more precarious condition than the marble floors because of their high porosity that lock moisture inside. As a result, the red sandstone floors are chipping at many places. ASI has put barricades near the Mehman Khana to stop vi
An alkaline solution of ammonia is used to clean the red sandstone. ASI uses a special biocidal treatment for the sandstone protions that are hidden from sun and gather moss and algae because of humidity. Preservatives are also used to increase the longev