Cellulose

The Federal Trade Commission R-Value Rule and accepted industry standards all require cellulose insulation to be specified and sold at settled density. The bag count and weight of material columns on cellulose coverage charts give precise and accurate information on the amount of material that must be installed to produce the specified R-value. It is not necessary to install more material than is indicated by these columns to compensate for settling. Compensation for settlement is built into the coverage chart. In fact, it is commonly believed the test specified results in overcompensation for settlement.