What may be original
- Region-specific envelope and service systems
- Later retrofit layers should be recorded separately
United States House DNA
Pre-1940 traditional homes
Masonry foundations, balloon or platform-transition framing, plaster interiors and later layered alterations.
Before 1940
What deserves attention
- roof flashing
- foundation moisture
- old wiring
- plumbing transitions
Reduce uncertainty first
- Confirm original construction era
- Record major renovations
- Compare symptom timing with weather and system use
Add to House DNA
Open My House →Original era is only the start.
Record later insulation, windows, roof, ventilation and service replacements in My House before relying on era assumptions.
