After extraction, the water left inside framing, concrete and drywall is what causes trouble later: swelling, rot and warped floors. Structural drying removes that water in a controlled way. It is measured, not guessed, and it follows the published IICRC S500 standard from the first reading to the last.
Category and class
The tech records the water category, which sets what must be removed, and the drying class, which sets how much equipment is needed. Class 1 is a small area with little absorbed water; Class 4 means dense materials like hardwood, plaster or concrete holding water deep inside. The class drives the number of air movers and dehumidifiers.
Balanced drying
Air movers push dry air across wet surfaces, and LGR dehumidifiers pull the water back out of the room air. The ratio matters: too much airflow without enough dehumidification just raises indoor humidity. The crew takes psychrometric readings each visit and adjusts the setup until the logs show steady progress.
