Structural drying is the long middle of a water loss, where equipment runs while crews measure how fast each material gives up its water. Crews in Harvard set the plan from the materials, not from a template.
Older houses need a plan of their own
Crews do not assume what is inside the walls. The town's population grew from 1,315 in 1950 to 4,301 in 1980, and it also holds historic houses, so a street can hold very different construction. Meters read each material, and the plan changes room by room.
- Meters read each material on every visit
- Air movers aimed along walls and floors
- LGR dehumidifiers sized to the room volume
- Desiccant units added for dense materials
Class 1 and 2 jobs involve a limited wet area and slow evaporation, while Class 4 jobs involve materials such as hardwood, plaster and masonry that hold deep moisture. Crews name the class in the log because it changes the equipment and the time needed. Dehumidifiers pull moisture out of the air so it cannot settle back into the walls.



