Cupolex Rialto

Cupolex Rialto

CUPOLEX-RIALTO is a forming system for providing an easy, efficient and fast solution for constructing concrete raised slabs or aerated floors with heights from 500mm (20 inches) to 2500mm (100 inches). This cutting edge forming system comprises of CUPOLEX domes, tubes and bases that quickly interlock and connect to each other composing a self-bearing structure ready for the placement of a concrete slab. The elevated CUPOLEX slab supported by the matrix of columns formed by the tubes allows the system for high load-bearing capacities and the elevated CUPOLEX RIALTO structure and the void created below the slab can be used for various purposes and applications. All components that make up the CUPOLEX®-RIALTO® forming system are made from 100% recycled plastic.

CUPOLEX RIALTO slab on grade systems provide the most cost effective and sustainable solutions to conventional thickened slab designs. CUPOLEX RIALTO crawl space foundations provide solutions to moisture, mold, and venting problems that have been common to old fashioned crawl space foundation designs.

Our concrete raised slabs replace gravel or any other fill typically required below slabs constructed on native or engineered sub-grades consisting of low to non-expansive characteristics. RIALTO slabs also replace expensive rigid insulation typically used for creating floating concrete slabs on existing structures when weight limit is a factor.

It is also used for landscape/hardscape applications such as creation of soil cells on walkways, sidewalk and public realms and for water management systems.

Disposable formwork Cupolex rialto


  • Raising slab level up to 250 cm
  • A sustainable and cost effective alternative to Structural Fill
  • Creating subsurface Stormwater management tanks
  • A cost effective and a more structural performing alternative to typical plastic shoring systems for creating Soil Cells
  • Creating under slab soil layers for Tree Pit Root Protection
  • Creating Crawl Spaces
  • Creating inclined slabs up to 15%
  • A Solution for Structural Weight limits and for post-construction settlement of sub grades


Cupolex Rialto

Humidity and Vapor Intrusion/Radon Mitigation

Cupolex Rialto

Bad or Expansive Soils

Cupolex Rialto

Stormwater Management

Cupolex Rialto

Soil Cells


  • Saves gravel or other expensive filling materials
  • Custom heights
  • More economical with respect to traditional aeration systems
  • Natural or mechanical ventilation to evacuate gases
  • Easy and quick installation
  • Can be finished as any traditional slab


  • Each Cupolex® Rialto Form has an installation arrow
  • Forms are Installed by starting from left to right and top to bottom
  • Installation follows a design layout
  • Lay the reinforcing mesh directly on top of Cupolex Rialto leaving the appropriate cover
  • Pouring and finishing of the concrete slab in the conventional manner
  • Pour in multiple steps if the slab is very thick
  • Cut the elements if needed in order to adapt to the area


Pontarolo Engineering S.p.a. gives full technical assistance with project design, specifications, BIM objects and logistic service.


  • Typical Cupolex Rialto slab design
Typical Cupolex Rialto slab design
Uso della Struttura Sovraccarico Permanente (Kg/m2) Sovraccarico Accidentale (Kg/m2) Spessore della Soletta (cm) Armatura Metallica
Abitazione Civile 200 200 4 d.5/20×20
Uffici 200 300 5 d.5/20×20
Garages 300 700 5 d.6/20×20
Industria 300 1200 6 d.8/20×20
Industria 300 1600 7 d.8/15×15

In case of higher loads, please contact our technical office.


  • Brochure
  • DWG and CAD
  • BIM
  • Specifications
  • Walkability test
Walkability test


San Vito al Tagliamento

PONTAROLO ENGINEERING SPA have been working in the construction business for over 55 years.
+39 0434 857010

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