110,000 square feet

In 2005, the Yakama Nation Housing Authority teamed with the U.S. Department of Energy’s
Building America Program to rehabilitate 25 single-family homes in its Adams View development
on the Yakama Indian Reservation. Not only have these homes achieved a total energy savings
of 47% (over the pre-retrofit homes) but the “system retrofit package” designed during this
collaboration has been applied to more homes on the reservation and has the potential to be
replicated across more than 4,300 homes built on reservations in the Northwest under the U.S.
Department of Housing and Urban Development (HUD) 1937 Housing Act.

Efficient Homes

The original homes were built to minimal energy code standards using 2×4 wood framing with R-11 batt wall insulation, R-19 batt attic insulation, and little insulation under the floor above the concrete vented crawlspace. The Yakama Housing Authority did a complete rehab, stripping out sheetrock, in