HUD/FHA Manufactured Home Foundation Requirements

The following improvements beyond the minimum manufactured home installation regulations are necessary to meet more stringent requirements of the Permanent Foundation Guide for Manufactured Housing. HUD Publication HUD 7584, which must be met for a home to qualify for FHA financing.

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  • The foundation piers must bear upon reinforced poured concrete footings that are constructed below the frost line.
  • Foundation piers must be constructed 0f "solid materials", such as reinforced concrete, masonry, steel, or treated wood. Dry-stacked block piers, which are commonly used in manufactured home foundations, can be upgraded to meet this requirement by applying an adequate coating of fiber-reinforced surface bonding cement.
  • A permanent well supported perimeter wall (skirting) must enclose the foundation to keep out vermin and water. This wall must be self-supporitng and must rest on a concrete footing. An access opening must be constructed in this skirting wall. Most often thses walls are constructed of block or brick masonry. However, treated wood walls can qualify if properly constructed.
  • The home must have adequate tie downs anchored to the footings to resist horizontal overturning, transverse and logitudinal loads. HUD-7584 specifically prohibits dependence on screw-in tie-down anchors commonly used in manufactured home anchorage systems. There are several anchorage systems that can be installed to satisfy this requirement.
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