Mathios Refractories presents the innonative “Energy Saving” technology that halves the thermal transmittance of the classic glass block. Theira innonative technology allows the glass block to reach a thermal transmission value of 1.5 W/(m2*K) a fact that improves the performance related to the reflection and transmission of solar energy without altering its mechanical and chemical characteriscs. This important development makes it possible to design building made completely of glass blocks. Energy Saving glass blocks technology allows the combination of state of the art Architectural design with optimum efficiency contributing significantly to cost reduction for heating / cooling expenses and to environment protection.