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

Follow the clues.
Reduce the uncertainty.

HouseSymptoms ranks likely causes from timing, location, weather and distinguishing evidence. The score is a transparent fit index—not a remote diagnosis.

21 diagnostic profiles31 failure fingerprints32 visual patterns
Active regional intelligenceGlobal baselineNo regional layer is active. Results use the global knowledge graph.
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Active profile

Diagonal crack above a door or window

Separate finish-joint movement, timber shrinkage and differential settlement by geometry, change and building context.

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Where is the crack?

Finish cracks and masonry cracks follow different paths.

Transparent cause ranking

What currently fits—and why

Fit index compares this profile’s evidence. It is not a probability and does not prove a hidden condition.

03
24fit index

Parts of the foundation move by different amounts.

Evidence supporting it

No strong confirming clue has been added yet.

Evidence weakening it

No direct contradiction is active yet.

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