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The OneStep CFMU Building System
The OneStep Concrete Form Masonry Unit (CFMU) Building System is a holistic, high performance building product whereby the entire exterior structure of a building can be built using only one product, one trade and One Step.








The exterior of the National Transportation Safety Board Training Academy constructed with the CFMU in Dulles, VA

The CFMU combines the beauty of masonry, the strength of concrete and the energy efficiency of polystyrene insulation into a singular building product, which dramatically simplifies the construction process and reduces the environmental impact of high performance buildings.

The patented CFMU building system has been designed and engineered to offer the best performance characteristics of any singular building product available on the market. Although CFMU look like standard concrete block on the outside (and are laid up by masons using standard mortar and masonry installation techniques) the webs and cells of a typical block have been replaced by internal plastic connectors and a rigid insulation insert (see photo, left). The unique CFMU design creates a concrete cavity to the interior side of the unit, and forms an insulation


blanket and air-space to the exterior side of the unit. The design incorporates high R-values, breaks the thermal path through the wall and adds the benefits of thermal mass . all of which combine to significantly reduce heating and cooling costs. The CFMU also
includes a five-layer moisture blocking system, designed to prevent water leakage, condensation and black mold. And, the CFMU design allows for limitless combinations of exterior and interior colors and finishes.

At 2/3rd the weight of a standard 12. block, the reduced weight plus a specially designed ergonomic center handle make the CFMU easier to handle and install.


Because the CFMU is a One-Step system, it installs quickly and eliminates many of the products and trades required to complete buildings of traditional design, which makes the CFMU better, faster and more economical than much of its competition.
The interior of the Kansas City Fire Department constructed with the CFMU in Kansas City, MO


Used in the construction of over 75 buildings in 14 states and in Canada, the results are clear: ."No other building product on the market can match the simplicity, sustainability, performance, strength, speed and value of the OneStep CFMU Building System".
For Information Regarding CFMU Sales and Installation Opportunities, Please Contact: OneStep Sustainable Building Systems, Inc.
Iowa. Paul Spakousky 515.603.6525 Email: Onestep@goldfieldaccess.net
Minnesota. John Spakousky 763.228.6235 Email: John1step@yahoo.com
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