Due to lack of demand from the auto sector, French multinational Saint-Gobain India has started pitching some of its glass products as substitute for marble and granite. In its IT special Economic Zone in Chennai, it has sold a new advanced, lacquered glass as a granite / marble replacement. The company has started supplying electro-chromic glass to a domestic buyer for use in a residential building. This glass imported from its plant in the US, adopts its light and heat transmission as also its tint to the level of sunlight. It costs Rs.10,000 a sqft to install, against Rs.1,000 sqft of advanced glass that company sold for a building for use in the façade. Just imagine a glass roof over you, it is like having a cooling glass over you, said company’s managing director. Although the construction industry has been slowdown but its appetite for advance products remains intact.