"You need to score concrete to relieve cracking. We laid the concrete this way because it emphasizes the linearity of the space," says Saitowitz of the corridor leading to a shared mail room, an elevator, and a garage.  Photo 4 of 10 in San Francisco by Lawrence Li from Aluminum Clad Residential Units in San Francisco

San Francisco

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"You need to score concrete to relieve cracking. We laid the concrete this way because it emphasizes the linearity of the space," says Saitowitz of the corridor leading to a shared mail room, an elevator, and a garage.