attic 3

Attic Ventilation Problems

DonanEngineering Forensic Engineering

Attic ventilation problems can cause elevated relative humidity in an unheated, residential attic. Elevated relative humidity in the attic can promote mold growth and increase the moisture content in the wood framing to a level that promotes fungal growth and rotting. A sustained relative humidity, which is higher than 60 percent (60%), is one of the essential elements for creating …