12 complete symptom paths42 guides and 60 questions in each1,460 Grade A articlesOne searchable, connected knowledge library140 official sourcesEvidence context with explicit limits
Cause dossier

Thermal bridge

A conductive or poorly insulated path produces a colder interior surface.

Urgency profileMonitor
Use timing, location and checks to separate competing explanations.

Heat follows the easier path

Framing, slab edges, steel and interrupted insulation can create repeatable cold patterns.

ObserveDistinguishControl sourceVerify
Living dossierPublished knowledge is connected and improved as new cases, images and outcomes are added. Updated 2026-07-20.