While it's often hard to see what dense packing between floors or exterior walls looks like, these photos show how our techs access the floor (or wall) cavities to fill them with cellulose insulation. A hole is made to fit the hose and then our technician packs the floor cavity with insulation. when complete, this makes a big difference in heat transference for the room above the garage, keeping it cooler in the summer and warmer in the winter.