We manufacture high quality Fiberglass insulation. It is very economical and easy to install within studs and timber joists. Based on experiments glass wool has an R-Value of 2.2 to 2.7 per inch. The glass wool can be sold with or without paper cover or reflective foil. This insulating material can be installed in single or several layers for increased sound efficiency. You can use it for soundproofing office, studio, wall cladding, vehicles and heat insulation for ducts, pipes, roof, cars and so on