Structural Drying & Dehumidification After Burst Pipes

What structural drying actually is

Structural drying is the process of removing bound moisture from building materials — framing, drywall, subfloor, plaster, brick, concrete — using controlled air movement and dehumidification until the material reaches an acceptable moisture content for closure. The acceptable number isn't universal; we establish it per job from unaffected areas of the same structure, because wood equilibrium moisture content in a Minneapolis winter home (interior air at 30–40% RH, heated) is different from the same home in July (interior at 55–65% RH, less drying power).

The equipment we use

• Air movers. Commercial centrifugal and axial fans that establish laminar airflow across wet surfaces. More airflow equals more evaporation. We size and position for each specific room geometry — too few and drying is slow; too many is wasteful.
• LGR (low-grain refrigerant) dehumidifiers. The workhorse of residential water damage drying. Pulls 150+ pints per day in ideal conditions. Works well at 60–85°F ambient.
• Desiccant dehumidifiers. Our cold-structure and heavy-material specialty. Uses silica gel or lithium chloride rather than refrigerant to adsorb water. Works where LGR doesn't — cold basements, deep-wet concrete, frozen-structure drying.
• Heaters. Portable indirect-fired heaters to raise ambient temperature where needed. Dryness depends on temperature — cold materials don't release moisture to dry air effectively.
• Containment. 6-mil poly sheeting to create drying chambers that isolate the wet zone from occupied space.
• Moisture meters. Pin (invasive) and pinless (surface scan) meters, thermo-hygrometers, and thermal imaging. Data drives every decision.

Our drying timeline

A typical residential structural dry runs three to five days from initial setup to equipment removal. Specific factors extend that timeline:

• Heavy materials — plaster-and-lath walls, thick concrete slabs, hardwood over subfloor systems
• Cold conditions — winter losses where ambient temperature is below 60°F
• Large affected area — square footage of wet materials
• Restricted airflow — tight closets, built-ins, cabinet interiors
• Wall cavities — drying inside stud bays is slower than drying open surfaces

We do not pull equipment early to meet an artificial timeline. We pull when readings match the pre-established dry standard. Pulling early is how mold claims happen, and both homeowner and insurer lose on those.

Monitoring and documentation

Daily moisture readings at the same documented points. Each reading timestamped, logged, and included in your final documentation package. The adjuster's question isn't "was this dried?" — it's "what did it read, when, and against what dry-standard target?" That's what the log answers.

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