Earthwool R2.0 Wall insulation is an economical choice with improved acoustic and energy saving properties, creating a peaceful environment in your home by absorbing sound and keeping it where it should be. The super-soft and easy to handle benefits of Earthwool have been further enhanced with TwinTech . TwinTech heralds another advancement insulation manufacture - the dual forming technique ensures there is a smooth finish on both sides of the insulation, which improves product handling and appearance. Earthwool is made using up to 80% recycled glass and with ECOSE Technology, a sustainable, bio-based binder that contains no added formaldehyde.