The chart above demonstrates thermal mass inertia. In this study, one side of a 10-inch AAC wall is painted black to minimize heat absorption from the sun. A thermometer measured temperature changes on the exterior and interior surfaces over a twenty-four hour period. The exterior surface fluctuated over 126*F while the interior surface fluctuated only +2* F.
The manufacturing process creates millions of tiny air cells, which provide excellent thermal resistance. This efficiency results in material with high DBMS (Dynamic Benefit of Massive Systems) equivalency, R-value, thermal mass and air tightness. AAC is the only wall system currently available that meets Germany's stringent energy codes without adding insulation. This material out performs a conventional wood framed wall system, reaching a R-value of 30 when used to construct a 12" thick wall.
Building with AAC can shorten construction cycles. Projects are completed in less time, which results in significant savings. AAC weights from 25 to 40 pounds per cubic foot as compared to 130 pounds for standard masonry. This provides extensive savings in shipping (depending on the location of the project). In addition, the reduced energy requirements of a building constructed with AAC can save building owners and occupants a great deal of money over the lifetime of the building. One can expect an annual savings between 35% to 60% on the buildings utility bills, and a national average savings of 65% on the buildings insurance premiums.
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