Surfacing materials selected for walkable roof applications have special requirements.

The surfacing materials must resist normal usage conditions, including frequency of use, impact loads and concentrated loads, as well as the weathering effects of the sun, rain, ice and snow. The surfacing materials should require minimal maintenance and repair to avoid physically disturbing the roof membrane or contaminating the roof membrane with penetrating sealants and similar treatments. The surfacing materials must be within the allowable weight capacity of the structure, as well as providing the desired aesthetic appearance.

Ruberoid^® PlazaDeck Roofing assemblies are available for use with all traditional walkable roof surfacing materials and systems, including:
¨ Precast Concrete Pavers, with or without Pedestals
¨ Paving Stones, Brick or Tile, set in Sand or Mortar Bed
¨ Wood Decking Panels
¨ Wood Decking with Wood Support Blocking
¨ Granulated Rubber Playsurface Pavers
¨ Cast-in-Place Concrete

As an additional option, extruded polystyrene insulation board, min. 40 psi compressive strength, can be incorporated into many Ruberoid PlazaDeck Roofing assemblies between the roof membrane and surfacing materials.