Metropolitan Systems Complete (MSC) AMB is a commercial grade high density acoustical underlayment providing up to 100% RH moisture control and a premium bonding surface for multiple flooring types.

MSC AMB is warranted to protect the flooring products installed on top of it from damage caused by moisture vapor emissions from the subfloor/bottom-up up to a maximum 100% RH, as measured by latest version of ASTM F2170, for a period of 10 years when properly installed according to manufacturer’s written installation instructions.