Siccus expanded polystyrene underfloor panels for hydronic systems designed for underfloor heating and cooling over suspended floors, retrofitting over concrete floors or upper floors to reduce sound transmission. Siccus panels have very high compressive strength that resists sagging from heavy objects. Note that prices are continually reviewed and may change prior to the new listing. Prices listed below include GST ex Melbourne warehouse. Contact us for pickup or delivery arrangements that may require added freight cost.