A wheeled system and method for installing insulation from bound insulation bales. At least one movable wall (52) that continually moves unbound insulation bales (B) by a drive means (66, 68) toward a dispensing end (32) of the base (24) where shredding of the insulation from the unbound insulation bales (B) occurs. The shredding is accomplished by a plurality of picker drums (78). Each of the picker drums (78) has positioned on the circumference a plurality of abraders (88) that abrade and remove clumps of insulation from the unbound bales permitting the clumps to fall into a blender (98a, 98b, 98c) wherein the insulation material is formed into particulate material and then cast into an air blower (110). A force measurer (120) including a strain gauge is operatively connected to the shredder.