Moisture Mapping is a non-destructive testing method used to determine the moisture content of wood and other building materials. It’s a crucial process in building inspections, as excessive moisture can lead to structural damage and mold growth.

### What is an Acceptable Moisture Level in Wood Framing?

Acceptable moisture levels for wood framing vary depending on the species of wood, the intended use of the wood, and the climate conditions. However, general guidelines suggest that moisture content in wood framing should be:

– **Below 12%:** For dimensional lumber used in interior framing, such as studs, joists, and beams.
– **Below 18%:** For treated lumber used in exterior applications, such as deck boards, siding, and shingles.
– **Below 20%:** For exterior-grade plywood and oriented strand board (OSB) used in walls and roofs.

Moisture levels above these guidelines can weaken the wood, reduce its structural integrity, and promote rot and decay. It’s important to note that the moisture content of wood framing can fluctuate over time due to changes in humidity and temperature. Therefore, regular monitoring is recommended to ensure the wood remains within acceptable limits.