How Much Does Cotton Insulation Cost?

How Much Does Cotton Insulation Cost? Cotton batts insulation costs between $0.76 and $1.41 per square foot with an R-value of R3. How expensive is cotton insulation? Cotton batts insulation costs between $0.76 and $1.41 per square foot with an R-value of R3. 5–R4 per inch of thickness. How effective is cotton insulation? Insulation made