Insulation is rated on either its thermal or acoustic value. If a thermal batt is rated at R3.0 for example, there is no difference in performance whether it is polyester or glass wool. It is rather a personal or a financial choice.
Insulation is rated on either its thermal or acoustic value. If a thermal batt is rated at R3.0 for example, there is no difference in performance whether it is polyester or glass wool. It is rather a personal or a financial choice.