What are the differences in using Cellulose or Fiberglass Insulations?
A4. The R values between blown in cellulose insulation and fiberglass insulation are the same but the thickness varies. On average, blown in cellulose insulation is 2-3 inches thinner than fiberglass insulation, due to density, when both have the same R values. Both blown in cellulose insulation and fiberglass insulation perform well to insulate your home. However, Fiberglass insulation has a much lower settlement factor. Q5. What Eco Certifications does CertainTeed Fiberglass have? A5. CertainTeed fiber glass insulation products have been certified by the GREENGUARD Environmental Institute and meet the GREENGUARD standards for low Volatile Organic Compound (VOC) emissions, including formaldehyde.