... It has the functions of insulation, heat-reflection and anti-radiation, it also has good moisture-barrier, heat-preservation ... be paved;3. Heat reflection, heat insulation, and sound insulation, anti-radiation and shielding.4. Moisture barrier, waterproof, good sealing ... an efficient, healthy method of temperature control and energy savings. [Anti-UV] Waterproof and Breathable Roofing Underlay