Does blown-in fibreglass create void areas?

No. The insulation moulds itself around obstacles in the walls, eliminating voids, gaps or seams. Pipes, wiring and electrical boxes are synonymous with insulation voids, and voids mean inefficiency. The system fills tightly around all wiring and piping,leaving no costly gaps or voids that could allow cold air to enter your home or warm air to escape. Blown-in fibreglass manufactures a seamless blanket of insulation that custom fits any size or shape cavity. This guarantees a uniform R-value throughout the entire cavityand controls air infiltration.