Unfortunately, a lot of structures and buildings will have masonry components past the point of preservation, and our ability to conserve the masonry reduces significantly. Common factors include incorrect stone selection, lack of quality control, failer of rainwater systems allowing moisture to penetrate the masonry fabric along with its charged impurities, cost and neglect.

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Restoration practices are generally only undertaken when significant deterioration and decay of the masonry has become unsightly and dangerous, leading to the replacement of materials. Additionally, more intrusive methods, such as structural repairs and adaptions, may also be specified.