Cupolex Aerated Floors For Refrigeration & Freezer Floors


CUPOLEX® Aerated Floors for Refrigeration & Freezers

A properly designed CUPOLEX® passive or mechanically heated Aerated Concrete Floor will provide sufficient heat to prevent frost formation under the slab; thereby, preventing structural failures while minimizing the parasitic heat gain to the refrigerated space.


  • The air distribution ductwork below CUPOLEX® is continuous and provides unrestricted air flow below the entire concrete slab.
  • In warmer climate areas the CUPOLEX® floor can be easily ventilated naturally by outside air
  • allows any moisture that may condense inside the CUPOLEX® void space to drain out
  • Easy to inspect
  • will not restricts airflow from moisture from air condensing and possibly freezing on the inside surface of the void
  • Simple design and lower cost than other electric, hydronic heating systems or vented piping systems
  • Minimises maintenance
  • Maximum amount of heat entering the subsoil
  • Under-floor heat can be supplied from outside air, warm exhaust air from a process, warm air from the engine room, or any other conveniently located space.
  • Provides additional protection and better temperature control with heated air
  • Allows ventilating from a furnace/makeup air unit or recover heat from the hot gas coming off the refrigeration system.
  • Can be designed as a “closed” systems, meaning the air used in the under-floor system is recirculated after adding heat and dehumidifying.
  • No risk of plugging of pipe branches by frost, ice, or other debris.
  • Allows the designer greater freedom for use of a fans to insure sufficient airflow can be delivered to all branches in the sub-floor network.
  • Energy cost is less than electrical resistance
  • Can use heat reclaimed from refrigeration system
  • No environmental concerns of leaking glycol into the soil
  • Manufactured to ISO 9000:2002 high quality standards


  • Refrigerated freezers (distribution and long-term storage)
  • Blast freezers (spiral freezers, blast cells, hardeners, etc.)
  • Ice rinks
  • Curling sheets

Design & Engineering

We provide PE stamped shop drawings through our engineering partners globally, construction training, and installation observation and we work closely with the design team, the contractor, and the owner to ensure the success of the project.  Each site is different, and working with project partners to find installation solutions that address specific site needs is a part of the service we provide.

To begin using the CUPOLEX® for your Refrigerated Facility project, visit our Getting Started page for a step-by-step road map on using this product.


Please consult the Cupolex Technical Data Sheet for details of the physical properties of the product range. The appropriate height of Cupolex should be selected based upon the required equivalent void and the concrete thickness above the domes is based on the maximum load capacity that the Cupolex slab is required to support. This information is provided in the table below:


Form TypeOverall Form DepthPlan Dimension InstalledConcrete Consumption To Top of DomesClear Void EquivalentDead Load of Concrete Structure to Top of DomesData SheetCAD Block
cm (inch)cm (inch)m3/m2 (cy./sq.ft.)cm (inch)kPa (psf)
WINDI 5-565 (2")56x56 (22"x22")0.008(0.0010)4 (1.57")0.19 (3.96)PDFDWG
WINDI 10-5610 (4")56x56 (22"x22")0.030(0.0036)7 (2.76")0.71 (14.82)PDFDWG
CUPOLEX 9.5-569,5 (4")56x56 (22"x22")0.014 (0.0017)8 (3.15")0.33 (6.89)PDFDWG
CUPOLEX 13.5-5613,5 (5")56x56 (22"x22")0.030 (0.0036)11 (4.33")0.71 (14.82)PDFDWG
CUPOLEX 16-5616 (6")56x56 (22"x22")0.035 (0.0043)14 (5.50")0.83 (17.33)PDFDWG
CUPOLEX 20-5620 (8")56x56 (22"x22")0.035 (0.0043)17 (6.69")0.83 (17.33)PDFDWG
CUPOLEX 26-5626 (10")56x56 (22"x22")0.045 (0.0055)22 (58.66")0.83 (17.33)PDFDWG
CUPOLEX 30-5630 (12")56x56 (22"x22")0.042 (0.0051)26 (10.24")0.99 (20.67)PDFDWG
CUPOLEX 35- 5635 (14")56x56 (22"x22")0.045 (0.0055)31 (12.20")1.06 (22.13)PDFDWG
CUPOLEX 40-5640 (16")56x56 (22"x22")0.060 (0.0073)34 (13.39")1.42 (29.65)PDFDWG
CUPOLEX 45-5645 (18")56x56 (22"x22")0.064 (0.0078)39 (15.35")1.51 (31.53)PDFDWG
CUPOLEX 50-5650 (20")56x56 (22"x22")0.065 (0.0079)44 (17.32")1.53 (31.95)PDFDWG
CUPOLEX 55-7155 (22")71x71 (28"x28")0.069 (0.0080)48 (19.29")1.63 (34.04)PDFDWG
CUPOLEX 60-7160 (24")71x71 (28"x28")0.070 (0.0085)53 (20.87")1.65 (34.46)PDFDWG
CUPOLEX 65-7165 (26")71x71 (28"x28")0.071 (0.0090)58 (22.83")1.68 (35.08)PDFDWG
CUPOLEX 70-7170 (28")71x71 (28"x28")0.073 (0.0095)63 (24.80")1.72 (35.92)PDFDWG



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