Im rebuilding the chimney at my house since the stucco was pealing. I stripped it down to the bare block and am ready for the scratch coat. The chimney now has a liner so moisture shouldnt be a problem anymore. I have 2 pallets of thin stone I pulled off an old job a few years ago and Id like to veneer with it above the roof line. Ive done some stucco repairs and wet stone walks, but never laid a vertical veneer. Its my house so Im willing to deal with the learning curve. The chimney is strong and the footer extends 6" around and it is secured to the house all 9 feet above the footer. House is masonry also. Ive found conflicting info on the proper technique for this. Already I figure on adding ties to the block. The problem is some say to go from the footer regardless of product and weight. Others say that no additional support is needed for thin stone since the weight is low. I figure average weight of the stone and mortar will be 20-30 lbs per square. Can I just go above the roof line, about 9 feet or do I need to go from the footer. If I go from the footer do I need to extend it? Is there anything else Im missing here? Any suggestions or leads to more info would be great thanks.