Inspecting Manufactured and Modular Homes in Washington: Tie-Downs & HUD Tags
Manufactured homes provide affordable living across rural Southwest Washington acreage. However, financing requirements (FHA, VA) and structural considerations differ significantly from traditional site-built homes.
Zachary Bradley
Licensed Home Inspector · WA Lic #26014533
Key Inspector Takeaways
- ✓Red metal HUD Certification labels on exterior corners and interior Data Compliance sheets are mandatory for mortgage financing.
- ✓FHA and VA loans require an engineer-certified permanent foundation with seismic tie-down anchoring.
- ✓Manufactured homes built between 1978 and 1995 often contain defective polybutylene plumbing supply lines.
- ✓Perimeter skirting must be intact, rodent-proofed, and ventilated to prevent crawl space rot.
Manufactured vs Modular vs Mobile: Knowing the Difference
Homes built prior to June 15, 1976 are technically 'mobile homes' built prior to federal HUD standards and are extremely difficult to finance. Post-1976 manufactured homes conform to strict federal HUD construction codes.
Modular homes are built in factories but conform to state and local building codes (IRC) and are erected on traditional perimeter concrete foundations.
Key Inspection Checklist Items
1. Foundation Piers and Shims: Ensuring concrete blocks are not crumbling and wooden leveling shims are not cracked or displaced.
2. Marriage Line Alignment: Inspecting the central seam where multi-section double-wide units join together for air gaps and roof leaks.
3. Underside Belly Wrap: Inspecting the black vapor-permeable belly board for tears or hanging insulation caused by hidden plumbing leaks.
Frequently Asked Questions
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