Galena Prototype Home

The ice jam on the Yukon last spring unleashed some of the worst flooding in Alaska history, filling Galena with icy water two feet above the 100-year flood line. Ninety percent of homes needed repairs and more than 20 needed to be entirely rebuilt. CCHRC collaborated with FEMA and the Alaska Department of Homeland Security and Emergency Management. to develop energy efficient, affordable replacement housing. The integrated truss design combines the floor, walls, and roof into single pre-built trusses that can be easily tipped up. The house contains 10 inches of polyurethane spray foam insulation, an economical option for remote villages because of its high R-value and lower shipping costs. It's airtight and moisture resistant, critical for maintaining warm, dry walls in an unforgiving climate. 

The simple design lends itself to rapid assembly and unskilled labor. Many of the replacement homes are being built by volunteers from outside Alaska. 

This is part of a larger project with the state to create a matrix of approaches that can be used for emergency replacement housing. The matrix includes a variety of wall systems, foundations, and materials that can be combined based on the location, climate, and season.

The house depicted in the following drawing sets has been developed specifically for Galena. Make sure to check local code compatibility and have an engineer-approved design for your foundation prior to construction.

** Please be aware that CCHRC expects that there will be as-built changes and adjustments to the materials lists in the future.

Download Full Construction Manual for Integrated Truss House


Download Construction Documents

3 Bedroom 36x26


Estimated Cost: $100,000 +/-10% for total cost of materials (not including pilings)

Estimated Annual Energy Use: 150 gallons (space heating only) 

*Spenard Builders Supply has done a comprehensive materials package related to this project. Materials list can also be used for competitive procurement.


Spenard Builders Supply–CCHRC 20x20 superinsulated "Hawk" cabin

For plans and pricing contact Spenard's Rural Sales department at 800-844-9373.

Spenard Builders Supply Hawk Floorplan


Alaska Water-Sewer Challenge The Alaska Water and Sewer Challenge looks for innovative, affordable water and sewer solutions for rural households.
Venetie Prototype Home The Venetie teacher housing four-plex uses super-insulated log walls to integrate traditional resources and high-performance building science.
Portable Alternative Sanitation System (PASS) CCHRC worked with the Alaska Native Tribal Health Consortium and Lifewater Engineering to develop a simple in-home sanitation system for Kivalina to replace hauled water and honey buckets.
Holistic Pilot Project in Oscarville Bringing local communities together with development professionals to tackle the energy, housing, and infrastructure challenges in rural Alaska.
Bethel Aviation Housing CCHRC partnered with the Association of Village Council Presidents (AVCP) to design two duplexes for flight school students in Bethel. The duplexes demonstrate the integrated truss technology and energy efficient building strategies in a hub community, helping to publicly vet these approaches and serve as model homes in the region.