Quiet

Homecrete Homes are Quiet:

As noise levels increase, particularly in urban areas, the desire for noise abatement has become more of a concern. The Greenblock ICF walls in a Homecrete Home provide for documented levels of STC (Sound Transmission Classifications) 50 (inaudible) or higher. Wood frame and concrete block structures are typically rated an average STC 25, meaning people inside the structure can hear and understand voices outside the structure.

What about noise reduction ?

Massive materials like concrete tend to reflect noise:

Compared to a typical wood frame wall, only about one-quarter to one-eighth as much sound penetrates through an ICF wall. Scientists would describe loud speech on the opposite side of a frame wall as "audible, but not intelligible." On the opposite side of an ICF wall, a listener would "strain to hear" loud speech. It would be virtually "inaudible."