Mountain or high-snow house

Snow loading, ice dams, freeze-thaw and large temperature swings matter.

House DNA matters

Do not apply a modern wall assumption to a traditional assembly or vice versa. Record structure, foundation, ventilation and major retrofit history.

Typical investigation approach

Start with original construction, then map later windows, insulation, services and extensions that may have changed drying or airflow.

Use this profile

Filter symptoms and guides by period and construction so the most plausible pathways appear first.