... XPS board Extruded Polystyrene Foam Board,xps insulation boardPolystyrene xps board is a kind of ... freely.Polystyrene xps board is high performance, reinforced insulation boards made of waterproof extruded polystyrene, each ... of XPS:Perimeter insulation, thermal insulation of flat roofs, floor insulation, exterior wall insulation, ceiling heat insulation, steep roof insulation, interior fitting ...