HUD Requirements

The following improvements beyond the minimum requirements of the S.C. state manufactured home regulations are necessary to meet the more stringent requirements of HUD Handbooks 4930.3 and 007487, entitled Permanent Foundations Guide for Manufactured Housing:

• Provide poured concrete footings below the frost line for the concrete block piers that support the chassis.

• Lay the concrete block piers in Portland cement mortar.  (As an alternative, the blocks may be laid dry and secured with fiber reinforced surface bonding cement such as Surewall or Quikwall.) (Not required for Freddie Mac.)

  

• Anchor the chassis to the footings.  (Screw-in earth anchors cannot be substituted for anchoring to the footings!)  The Vector Dynamics brand "Concrete System" is an acceptable method. (Not required for Freddie Mac.)

• Enclose the foundation with a durable material, such as masonry.

• Provide adequate screened vents (1 square foot of net-free area per 150 square feet of crawl space floor area) around the entire perimeter of the building.

• Cover the entire dirt floor of the crawl space with 6-mil polyethylene plastic sheeting.

• Remove the tongue, axles, and wheels from the site.

• Permanently install all utilities.

This information is provided as a courtesy to help illustrate some of the H.U.D. Permanent Foundation requirements that apply in our local area.  This list does not purport to be a complete manual of accepted good practice.  Other building code and engineering considerations may apply to various situations.  Meeting the requirements listed above does not assure that the installation can be certified.  However, the installation will not be approved unless all the above details are provided.