___ Energy Efficient Homes of The Future ___
RASTRA is the original Composite Insulating Concrete Form (ICF), first introduced in 1972 in Austria. learn more ...
RASTRA Insulated Concrete Forms (ICFs) are recognized as the ultimate building
solution for economical and environmentally-friendly construction.
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The DBMS (Thermal Mass Multiplier) values for RASTRA walls are based on computer simulation for the eight representative U.S. climates as identified by the Department of Energy (DOE) by Oak Ridge Laboratories*. learn more ...
Tucson Energy Efficient Homes