Amvic ICFsReversible FormLock interlock has 1-in.-deep grooves and eliminates the need for gluing or taping2.5 in. of 1.5lb/cf density EPS foam on each side of the formCan withstand internal vibration6 in. on center web placement Request More Info Fill out the form below to request more information about Amvic ICFsSpec & Compare.More From Amvic Building SystemEnerTILTT-Block ICFAmvic Design Software (ADS)AmDeck Floor ' Roof SystemICFs an Easy Fit for Concrete ContractorsMany traditional concrete contractors have found ICFs a beneficial addition to their lineup of services.