Stackable Support Pads are the easiest way to install paving units on roofdecks and balconies, effectively replacing the sand laying course used in a standard pavement installation. Simply stack the units on top of each other in any combination to achieve the desired height and lay the paving directly on top to create a stunning "floating floor" system with a void for services, insulation and waterproofing underneath.RynoPaveSupport stackable paving support pads are the quick and simple way to achieve perfectly level paving on a flat surface. They allow for drainage and can be quickly moved for access or maintenance.RPS-10/15 can be stacked up to six pads high and RPS-HD15 can be stacked up to 10 pads high. They can be snapped into halves/ quarters to support slabs at edges and corners.Applications: Roof areas, terraces, balconies, green roofs. Structural podium decks. Communal/ public areas. Walkways/ wheelchair access ramps. Temporary paving areas. Patio overlays/ renovations. Gardens.