Humidity Risk Checker

This is a triage tool, not a diagnosis. It combines your climate zone's real moisture-risk data with your foundation type and observed symptoms to point you toward the right next step.

Climate zone

Foundation type

Symptoms you've observed (check all that apply)

Musty or earthy odorVisible condensation on ductwork, pipes, or joistsVisible mold or mildewWood rot, soft spots, or sagging insulationNoticeably humid air in the living space aboveSigns of pest activity (drawn to moisture)Standing water after rain

How this works

We add up points from three sources — your climate zone's risk classification (severe = 3, moderate = 2, low = 1), your foundation type (open/vented = 3, closed/unvented or basement = 2, encapsulated = 1), and one point per symptom you check (up to 7) — then map the total to a tier: 0-4 low, 5-7 moderate, 8-10 elevated, 11+ severe.

Elevated and severe results may indicate a problem that needs more than a dehumidifier alone — a professional moisture or structural assessment can be the right call before you spend on equipment.