Masonry Magazine November 2012 Page. 37
In restoring a damaged surface, if a chip can be found, it may be possible to restore it to its place with the same thermo-setting resin adhesive, or cyanoacrylate "superglue" that the manufacturer uses.
Getting the support structures right. VERY OFTEN, WATER IS THE ROOT CAUSE of damage to limestone veneer, facades and statuary. If the walls, support structures or roof collect water and deposit it next to the stone, the result can be damage to the limestone. Water has a habit of picking up oils, chemicals, acids and corrosive materials. Because limestone is porous, chemically-charged water can be absorbed into the limestone, allowing the chemicals to react with the stonework. If you don't fix the drainage and support structures to prevent water pooling in the future, you'll soon be facing new damage to your limestone building features.
The Indiana Limestone Institute of America produces a number of free publications available for contractor use, including a booklet on limestone repair that has a great deal of information on protecting and restoring limestone building features as well as a booklet on proper installation techniques. IMAS Kathy Baker-Heckard is president of Indiana Cut Stone. Visit www.indystone.com/publications indiana limestone.html for a copy of the Indiana Limestone Handbook.
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Rob Hollars Indiana Cut Stone Limestone Craftsman READER SERVICE #173 READER SERVICE #193 November 2012 MASONRY 35