What's happening under the floor
A dip in the hallway, a bouncy kitchen floor, or a soft spot near a bathroom are common signs of crawl space framing issues.
Common causes
- Moisture-weakened joists or subfloor
- Undersized or overspanned girders
- Settled piers or missing supports
- Termite or wood-boring insect damage
- Plumbing leaks under bathrooms and kitchens
Repairs
Support jacks on footings, sistering joists, girder reinforcement, and moisture control to protect the repair. See structural repair.
Related Crawl Space Topics
EncapsulationVapor BarrierDehumidifiersDrainage & Sump PumpsStructural RepairMold & Insulation RemovalMusty SmellStanding WaterCrawl Space MoldCost Guide
Frequently Asked Questions
Is a sagging floor dangerous?
Usually not immediately, but it should be evaluated, especially if it's getting worse.
Can floors be raised?
Often, gradually, using adjustable supports.
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