Up until the mid-1970’s, single wall homes were most common in Hawaii construction.  You may not be aware that there are significant differences between single wall home and double wall homes.

Single wall homes are constructed of exterior walls that are built of redwood 1”x8” tongue and groove planks.  These planks are joined up edge to edge vertically in order to construct the wall.  Once constructed, these exterior walls become both exterior and interior surfaces of the home.

The electrical wiring of a single wall home is run on the interior surface of the walls and covered with a wood molding trim.

Single wall construction was popular in Hawaii due to the climate.  Since heating a home is not necessary here and wall insulation is not needed, it became the home of choice.

Many of the newer homes in Hawaii are built like you would find on the mainland.  These double wall homes include drywall interior wall with insulation.  Also, the electrical wiring is run between the exterior and interior walls.

Single wall home in Hawaii have ceilings made from sugar cane to insulate the heat trapped in the roof.  The joints of the canec panels were cover with batten strips.

Also, many single wall homes were not built on concrete slabs but rather elevated above the ground.  They were supported by foundation blocks with a termite block and pan to support the 4x4 leg post.  The windows were usually the jalousie louver type which provided 100% ventilation when fully opened.

City Mill carries many of the hard to find items to repair your single wall home.  They are listed below:

  1. 1”x 8” Tongue and Groove pressure treated and primed planks.
  2. 5/15 x 1 5/8” batten strips for ceilings and walls.
  3. 3/4 x ¾” round wedge molding for base board
  4. ½ x 4 x 8 Canec or insulation board for ceiling repair.
  5. Single and double electrical wire moldings.
  6. In-line electrical switches.
  7. Surface mount electrical boxes and plates for outlets switches and light fixtures.
  8. Aluminum jalousie hardware frames from 15 ½” thru 53 ½” long.
  9. Clear and obscure jalousie glass 4 x 24” thru 4 x 42” in length.
  10. 16” x 16” foundation blocks
  11. Garage piers.
  12. 7” x 7” x 4” termite blocks.
  13. Wall mount laundry faucets with bypass washing machine attachment valves.
  14. Surface mount dryer and stove outlet.