It is important to know what moisture readings should be for internal walls to prevent potential issues such as mold growth, structural damage, and health concerns. The ideal moisture content for internal walls can vary depending on several factors, including the type of wall, the climate, and the time of year. However, generally speaking, moisture readings for internal walls should be below 15%, with readings between 12% and 15% indicating a slightly elevated moisture level that requires monitoring.
As a general guideline, here are the recommended moisture content readings for internal walls: