Unbonded loosefill insulation

A loosefill insulation installation comprising:

• a loosefill insulation material made from fiberglass fibers;
• wherein the loosefill insulation material has an average installed thickness of at least 10.5 inches;
• wherein the average thermal resistance (R) of the installed thickness of the loosefill insulation material is greater than or equal to 30;
• wherein the average density of the loosefill insulation material is less than or equal to 0.485 pounds per cubic foot;
• and
• wherein the fiberglass fibers are coated with a mineral oil in an amount that is between 0.1% and 0.6% of the weight of the fiberglass fibers.