Poorly insulated walls are the most likely cause for heat loss and increased utility expenses in homes and buildings. Wall-cavity spray application with cellulose insulation is recommended for new construction, which creates a monolithic seal and eliminates air-infiltration by sealing all cracks, voids, plumbing and electrical outlets in the walls. Existing walls may be retrofitted without costly renovations of the interior wall finish by using the "drill and fill" method. Cellulose insulation is blown into the wall cavities through small holes, which are easily patched or plugged.
Best Fiberlite Products For Insulating Walls: