Is Lime mortar appropriate for repointing a 1950s sandstone retaining wall (about 8 feet tall in the center, and tapering down to 3 feet on each side with the surrounding slope) in Pennsylvania? I haven’t had the failing mortar analyzed, and am not sure if Portland has been used in the construction. Any guidance you would offer is much appreciated.
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Is Lime mortar appropriate for repointing a 1950s sandstone retaining wall (about 8 feet tall in the center, and tapering down to 3 feet on each side with the surrounding slope) in Pennsylvania? I haven’t had the failing mortar analyzed, and am not sure if Portland has been used in the construction. Any guidance you would offer is much appreciated.