SKIRTING SPECIFICATIONS FOR FHA INSTALLATIONS MEETING
U.S. DEPARTMENT OF HOUSING AND URAN DEVELOPMENT MORTGAGEE
LETTER 2009-16 DATED MAY 21, 2009
REVISED 06/29/16
1. Vertical columns to be 1- 1/2″, 20 gauge hot rolled Channel Steel or heavier; or 2”x4” yellow or southern
pine, pressure treated timber. Vertical columns to be installed a maximum of 3’-0” O.C. and attached to the to
the home at the top using 1/8”x ¾” machine screws or 2 ea. 1/4″x3/4″ wood screws. Vertical columns to be
placed around the entire periphery of the foundation to a depth of 6″ below grade.
2. For attaching vertical columns to concrete slab, connect 2’x2”x1”x 1/4” galvanized steel angle attached with
two 3/8” bolts to concrete slab.
3. A horizontal beam of similar material as the vertical columns is to be attached around the periphery of the
home at the midpoint of the vertical columns so as not to exceed 18″ from center of skirting opening to bottom
of home and not to exceed 18″from center of skirting opening to the ground elevation.
4. Skirting panels to be installed with 1/8” x31/2”” sheet metal screws attached to vertical columns at each panel
top and bottom and center of panel, so as not to exceed 18” between attachments to the vertical columns and
horizontal beam.. Panels are to be vinyl or preservative treated wood siding or approved alternate or as
recommended by the manufacturer.
5. Minimum 35” wide trap door installed for the height of the skirting.
6. Skirting panel covering material to be as recommended by the manufacturer.
7. For skirting height greater than 36”, an additional beam(as in Item 3 above) shall be installed at the one-third
points of the distance between ground and home bottom.
8. Venting shall be shall be 1 S.F. per 150 S.F. of floor area with placement and location per manufacturer and
local ordinances.
9. Holes in skirting covering material shall be patched or grouted to deter water and vermin from foundation
entrance.
10. Contractor shall submit alternate designs for approval by the engineer.