the United States

Fiberglass batting with a thickness of 35 inches 89 centimeters delivers an NRC of 090 to 095 source. Wool vs Fiberglass Insulation. Rockwool Insulation Vs Fiberglass Insulation 10 Best Differences Maddiary If you plan to add thermic insulation to your room as well consider this. Rockwool insulation vs fiberglass . Peter L Nov 05 2013 0653pm 3. See Wrapping an Older House with Rock Wool Insulation. In the long run fibreglass is also a good option because it does not retain moisture and will not attract insects. In batts offered for 24 stud walls mineral wool comes in R-15 while fiberglass comes in R-11 or R-13 although it can be special ordered in R-15 in the US. In batts offered for 26 walls mineral wool comes in R-23 fiberglass comes in R-19 and again you can special order higher R-value but only R. Fiberglass and rock wool absorb less than 1 percent of their weight whereas cellulose absorbs 5-20 percent of its weight. Fiberglass insulation costs 25 to 50 percen