Tile Tech Pedestal System is designed for concrete pavers, porcelain pavers or IPE deck tiles to lay level over a built up roof. Our PATENTED Hybrid screw-jack pedestal support system is a innovative product, allowing for self leveling, single model for all height applications, screw adjustable, PVC pipe adjustable and are stack-able. The substrate can be either concrete or wood structure, with a roof membrane over the top.