Polynum-Thermal Reflective Insulation are fibre-free and manufactured of pure aluminium foil bonded to polyethylene bubble sheeting. Polynum-Thermal Reflective Insulation unique design outperforms all mineral-based insulation material. reflecting 97 percent of radiated heat and saving heating cost in winter and cooling costs in summer. The easy to install and maintenance-free Polynum-Thermal Reflective Insulation line comprises polynum one, polynum super, polynum big and polynum sound.