The matrix applies CCHRC’s diverse building expertise and collaborative approach to an emergency situation.
CCHRC is producing a design matrix to help emergency
responders plan energy efficient replacement housing when
floods, volcanoes, wildfires, or other disasters strike Alaska
communities. The matrix connects the building science expertise
of CCHRC and the local knowledge of communities with the need
for rapid, high-quality construction in the event of emergencies.
“The intent is to provide momentum to the Department of
Homeland Security and Emergency Management in the event of
disaster,” said CCHRC designer Corey DiRutigliano.
Agencies and contractors can use the matrix to make decisions
about what type of structure and building materials to use based
on a host of factors–climate, soil type, transportation, season, and
more. It includes 500 possible combinations of design criteria
that can be tailored to a specific project.
For example, a foam raft foundation can work on stable
permafrost, while a piling foundation would be more appropriate
for a flood-prone site because of the potential for erosion.
How building materials are transported also drives design. A
whole house truss, similar to the design used in the Crooked
Creek prototype, would be both fast and affordable by truck or
barge, but may not be practical by plane. Cellulose (which comes
in large bales and is installed with special equipment) can be a
great insulation choice on the road system, while polyurethane
spray-foam is more economical in the air because it travels in 55-
gallon drums and has the highest R-value by mass.