The Lite-Deck II line uses 100% recycled expanded polystyrene (EPS) in various ICF components, including the Top Hats used to achieve varying depths for concrete deck formwork. The company's new molding equipment and processes allow it to intercept and use virtually all EPS scrap from construction sites as well as packaging scrap. Lite-Deck ICFs also can be used for forming roofs and tilt-up panels. Lite-Form Technologies. 800-551-3313.