How do I install blown-in attic insulation?

Blown-in attic insulation is installed by professionals who are trained in the proper procedures for this installation. The insulation is made up of a two-chemical soup that instantly forms a high R-value insulation material called urea-formaldehyde. The installation crew will start by removing the old insulation. The crew then places a new vapor barrier in place. Once that is in place, the crew seals the area and inserts a dual-hose system that contains the insulating material that expands to fill the existing space and then hardens instantly. The dual-hose system is a generator/pump that pumps the material into place.