How Structural Drying Works After a Water Leak

Step one: map the moisture

Technicians use moisture meters, thermal cameras and sometimes borescopes to find wet materials, then record readings. Baseline readings from dry areas of your home set the target.

Step two: create the right drying environment

Drying works by evaporating water from materials and removing it from the air. Air movers speed evaporation, and dehumidifiers remove the moisture so air can absorb more. The home is kept closed so the equipment works on one controlled space. Technicians monitor temperature, humidity and grains of moisture per pound of air (GPP).

Step three: monitor daily

A good provider returns each day to check readings, move equipment and add or remove machines. If a wall is not drying, they may open it, use injection drying or remove the material.

• Air movers are repositioned as areas dry
• Readings are logged for each material
• Equipment is removed only after the dry standard is met

Why it can take several days

Most residential jobs take three to five days. Dense materials like hardwood, concrete and plaster dry slowly, and multiple layers (like flooring over subfloor) trap water. Cutting the process short risks mold and hidden damage.

Questions to ask your provider

• What is the dry standard for each material?
• Will you share daily moisture logs?
• What equipment is being used, and how many units?
• When do you expect equipment to be removed?

Read more about structural drying and dehumidification and how it connects to mold prevention.

Quick answers

West Valley Water Damage is a referral service. Information here is general and not legal, insurance or engineering advice.