REA Architecture

What makes Scoria Green?
RE: Architecture / Scoria Construction / Alternative Thermal Mass Walls

Use of air encapsulated volcanic aggregate results in a natural insulation
The loose scoria aggregate is directly delivered to the construction site, reducing transportation cost and gas emissions.
The aggregate is an indigenous material within the local community.
Casting, placement and manufacturing of the Scoria concrete is on site.
Waste is re-mixed and used on site as site walls, wall construction, eliminating landfill debris
Scoria has a 12 hour thermal lag, allowing for off-peak utility rates to be applied
Scoria enhances passive design based upon wall thickness and control of the thermal lag transfer.
Scoria was produced naturally under (free) high-heat derived from volcanic activity
Casting of window and doors into the Scoria wall reduces air infiltration and energy loss.
Scoria is abundant, reducing cost substantially in Southwestern locations.


	Commitment to Green Construction Development of the Scoria Thermal Mass Wall has been a focus since 1979, constructing energy efficient residential projects in the Southwestern region of the United States. Master planning for The Hopi and Navajo Nations has been integral to the self-sufficiency policy for implementation of housing. REA has been involved with the construction and planning technology transfer to the local communitiy since 1989. Development projects target for off-grid communities is on-going through the Nations and private developments. Introduction of Green components to enhance energy performance, is the focus of each project designed and constructed by REA within the City of Scottsdales’ Green Program. REA is currently designing residences incorporating water reclamation, rain water harvesting and design of drought resistant landscaping and irrigation.