Home Plazadek Plazadek Photo Gallery Plazadek Photo Gallery Floating deck system with stone tiles on pavers above the Duradek Plazadek system. The Duradek Plazadek system creates a water-tight seal on a flat roof deck below floating deck systems. Beautiful slate tile surfaced floating deck system with Duradek's Plazadek waterproofing system below. Floating deck system with concrete pavers on pedestals over the Duradek Plazadek waterproof membrane The Duradek Plazadek system accounts for roof-grade waterproof performance on floating deck assemblies. Porch with elegant stone tiles on pedestals with the Duradek Plazadek waterproofing system below.