Apr 05, 2021 · Fiberglass Insulation Around Pipes. The fiberglass insulation for around pipes that I have seen is also foes is R-11-R-15. Cost USD (2020) Knaff Ecobatt is 0.49/sq ft and you can buy it at Home Depot or through your contractor.Mar 01, 2009 · Most people know that for a given insulation material, the thicker it is, the greater the R-value. For example, for a particular -thick board will ha-thick board. Equation 2: R-value = 1 / C-value. If the C-value is 0.5, then the R-value is 2.0.Sep 17, 2021 · Fiberglass insulation is cheaper than most other kinds of insulation. Notably, this material costs around $0.40 – $0.50 per square foot of area covered. In contrast, the cost of spray foam insulation is relatively higher, ranging between $1.00 and $1.50 per board foot.Fiberglass mesh is woven by C/E glass yarn (melting point up to 680 °C, boiling point up to 1000 °C, density: 2.4–2.7 g/m 3) through leno technique, then coated by alkaline resistant latex. Because of it's fine alkaline resistant, high strength, flexibility, it's mainly used to the building wall EIFS system, GRC reinforcement.