We are one of the best if not the best in polystyrene parapet, window hood, pop business... Polystyrene Materials for parapet, POP, Window wall, cooling box, Building wall, & others are available. 300mm x 300mm polystyrene facials is already machine produced. its Expanded Polystyrene EPS. Its lightweight, easy to install and economically a better option to cement. also available in 450mmx350mm 350mmx350mm