Junda Multi-foil Insulation is a lightweight and flexible insulation for roofs, walls and floor. Due to its flexibility, it is an easy to fit, multi-foil insulation that offers tremendous thermal benefits. It confirms high core thermal resistance of 7.17m2K/W for our 19 layers insulation. Due to the special composition of multi-layers of insulation effectively deals with all forms of energy transfer (i.e. radiation, conduction, convection) multi-foil insulation works most effectively by reflecting radiation. This means that not only Junda Multilayer Insulation effective in winter by reflecting heat back into the building and cold out, but also in summer Junda Multilayer Insulation is a very effective solar over heating barrier reducing the need for artificial cooling systems,preventing uncomfortable beat build up on the roof.