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If you own a building in Chicago built before 1950, the single most important thing you can learn about it fits in one sentence: the mortar between your bricks is supposed to be softer than

Short answer: if your building is a designated Chicago Landmark or sits inside a landmark district, yes – exterior masonry work, including tuckpointing, goes through review before a permit can be issued. If your building

You’ve noticed it on the gangway wall or the chimney: the smooth face of a brick has flaked away, exposing a rough, crumbly orange interior. That’s spalling – and it matters, because a spalled brick