Structural Drying in Manchester, NH

Structural drying is the part of a water loss you do not see: pulling moisture out of framing, subfloor, plaster and hardwood after the standing water is gone. It follows the IICRC S500 standard, the industry drying standard, and it is measured, not eyeballed. A wall can feel dry on the surface while the stud behind it is still wet enough to warp, stain or grow mold.

How the drying plan is built

The tech who does the walkthrough maps every wet material with pinless and pin meters and thermal imaging, and takes a reading from a dry reference material in an unaffected part of the same building. That reference sets the drying goal. The loss is then classed by how much water there is and how porous the materials are:

• Class 1: a small area with low-porosity materials
• Class 2: a whole room, water wicked up the walls
• Class 3: water from above, ceilings, walls and insulation soaked
• Class 4: dense materials that hold water, such as hardwood, plaster, brick and stone

The class decides how many air movers and how much dehumidification each room needs.

The equipment and why it matters in Manchester

Air movers push dry air across wet surfaces so water evaporates. LGR (low grain refrigerant) dehumidifiers pull that moisture back out of the air. Class 4 materials, which are everywhere in the city's older buildings, including plaster on lath, old-growth hardwood and brick and stone foundations, often need desiccant dehumidifiers and drying mats to pull water out of dense material. In winter, closed-up houses help drying; in humid summers, dehumidification does more of the work.

Daily readings and the claim file

The drying team records moisture and psychrometric readings every day, adjusts the equipment when the numbers stall, and pulls it only when wet materials read within 2 to 4 points of the dry reference. Those logs go in the claim file alongside the photos and the moisture map. The EPA explains why materials should be dried inside 24 to 48 hours, and UNH Cooperative Extension covers indoor humidity in New Hampshire homes. Drying starts after water extraction.