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

Traditional Australian houses

Raised timber floors, ventilated roof spaces, weatherboards or masonry and later service additions.

Before 1945
Common assembly context

What may be original

  • Region-specific envelope and service systems
  • Later retrofit layers should be recorded separately
Priority clues

What deserves attention

  • subfloor moisture
  • termite evidence
  • roof drainage
  • plumbing alterations
First checks

Reduce uncertainty first

  1. Confirm original construction era
  2. Record major renovations
  3. Compare symptom timing with weather and system use
Add to House DNA

Original era is only the start.

Record later insulation, windows, roof, ventilation and service replacements in My House before relying on era assumptions.

Open My House →