Control Joint

Control joints are engineered weak points that direct inevitable cracking to predetermined locations, preventing random cracks that compromise structure and appearance in large masonry walls. These vertical breaks accommodate thermal movement, moisture expansion, and minor settlement without visible damage, essential for Ontario's temperature extremes causing significant material movement. Spacing depends on wall height, thickness, and exposure, typically every 20-30 feet in brick veneer with additional joints at corners and openings. Missing or improperly sealed control joints cause diagonal cracking, brick displacement, and water infiltration as walls crack unpredictably under stress. Proper joints use backer rod and flexible sealant allowing movement while preventing water entry. Fix My Brick inspects control joint condition and spacing, adding joints where needed and resealing failed joints to restore movement capacity. Maintaining control joints prevents thousands in repairs from uncontrolled cracking while preserving your building's appearance and structural integrity.