Landscaping Poor Drainage


Poor landscaping, inadequate drainage and improper pre and post construction grading can cause foundation movement for slab on ground foundations. Grade should slope at least 5% ( 3 inches in 5 ft) up to 10 ft away. It is common to experience some distress to structures with slab-on-grade foundation systems due to ground movements. This can include cracks in brick walls, cracks in ground supported slabs, adjustment to doors and windows that can stick, and interior cracks in sheetrock walls. Cracks in exterior brick walls can be less noticeable with the use of closely spaced vertical joints.” Homeowner-induced geologic impact, plumbing leaks, and inadequate pre and post construction grading are the primary cause for foundation movement for slabs built on expansive soil.

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