Moisture Testing
Moisture testing uses electronic meters or other methods to measure moisture levels in wood, concrete, drywall, and other materials to identify problems or ensure proper conditions for installation.
Moisture testing identifies hidden water problems and verifies proper drying before material installation. Pin-type moisture meters insert probes into materials measuring electrical resistance, while pinless meters use electromagnetic sensors to scan surfaces. Wood moisture should be below 15% before enclosing in walls or under flooring. Concrete slabs need testing before flooring installation—excessive moisture causes adhesive failure and flooring damage. Moisture testing also locates active leaks behind walls and under roofing.
Why It Matters in Denver
Denver's dry climate is generally forgiving, but moisture problems still occur: ice dam water intrusion, plumbing leaks, foundation water infiltration, and condensation in poorly ventilated areas. Installing flooring over damp concrete traps moisture causing mold, odors, and material failure. Enclosing wet framing lumber causes dimensional changes, nail pops, and drywall cracks. Testing before installation prevents callbacks and material failures. Thermal imaging cameras combined with moisture meters pinpoint problem areas efficiently.
Common Testing Applications
- Concrete slabs: Calcium chloride tests or RH probes before flooring
- Framing lumber: Pin meters verify below 19% before drywall
- Flooring installation: Subfloor moisture below manufacturer specs
- Leak investigation: Pinpointing hidden water intrusion
- Mold investigation: Confirming moisture conditions supporting growth
- Post-flood recovery: Tracking drying progress toward acceptable levels
Related Terms
Vapor Barrier
A vapor barrier is a moisture-impermeable material installed in building assemblies to prevent water vapor from penetrating walls, floors, or ceilings and condensing within insulation or structural components.
Waterproofing
Waterproofing involves installing membranes, sealants, and drainage systems to prevent water from penetrating foundations, basements, showers, and other vulnerable areas.
Blower Door Test
A blower door test uses a calibrated fan and pressure gauges to measure air infiltration rates and locate air leakage points in building envelopes.