New Orleans raised its houses for a reason. But "raised" doesn’t mean "safe" — it means the house floods differently. Understanding how water enters and lingers in a raised shotgun or camelback home explains why these beautiful structures need specialized drying after any significant water event.
Street flooding only needs to reach the sill line — typically two to four feet up — to push water through the floor system. Wind-driven rain during hurricanes enters around the tall, original windows and through attic vents. And the crawl space below floods in a heavy rain even when the living space stays dry: water pools on the ground beneath the house, saturates the soil, and wicks upward into floor joists for weeks.
The space beneath a raised home is the most overlooked part of water damage in New Orleans. Our high water table means the ground under your house may stay damp for months after a storm. Humid air pools there, feeds mold on the joists and subfloor, and that mold migrates upward into living areas through every gap in the floor. Any proper drying job on a raised house includes the crawl space — extraction if water pooled, then dehumidification until the wood reads dry on a meter.
Shotgun houses were built with old-growth cypress and heart pine — materials far more water-tolerant than modern lumber. Cypress framing that gets dried quickly often survives a flood that would destroy a new build. But the same homes have plaster walls, original wood floors, and no vapor barriers, all of which hold moisture. Fast extraction and metered drying is how you save these materials instead of losing them.
After extraction, expect commercial dehumidifiers and air movers in the living space, plus drying equipment or ventilation correction in the crawl space below. Technicians should take moisture readings in the floor system, not just the rooms you can see. When a contractor tells you a raised house is dry, ask what the joist readings were — the answer tells you whether they actually looked.
