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The Kádár-kocka, reimagined

See it, understand it, then plan it: how to prepare the renovation of a Kádár-kocka, the cube-shaped Hungarian family house.

01Thermal camera

Where does the heat escape?

Drag the slider: the same house in a thermal-camera example image, before and after renovation.

The thermal view needs WebGL. The products below can be read without it.

Not measured data. The colours show how a thermal camera displays heat.

Before — example

The roof edge, the chimney, the windows and the wall corners glow. This is where the heat you pay for escapes.

After — example

Insulated attic, façade and new windows: the surface stays evenly cool and the warmth stays inside.

Four steps that get you the picture on the right

  1. Attic floor

    ODE Starflex 2 × 12.5 cm

    Laid crosswise, with a BK45 vapour barrier below and BD70 film above.

    From 12 700 Ft/m²
  2. Façade

    Bonus Premium F stone wool

    Non-combustible façade insulation. Custom quote, based on a survey.

  3. Windows

    REHAU Synego + Şişecam

    80 mm multi-chamber PVC profile with triple-layer, argon-filled glazing.

  4. Flat roof, garage

    Green roof with ODE membranes

    Insulation · drainage · growing medium · sedum.

Illustration: the thermal-camera colours and the thermal picture of the house are an example, not a measured image. The actual result depends on the building and on how the work is carried out.

02Heat-loss metro map

Where does your heating go?

Every line starts in the living room and ends outside: pick one to see where the heat leaves.

Map · not to scale
Typical proportions: an example, not measured data
1 · INSIDE2 · STRUCTURE3 · OUTSIDELiving roomwhere theheat startsFlat-roof slabFlat roofroof-line branchCeilingAttic floorRoof coveringRoof / attictypical share,exampleOuter wallWall cornerFaçadeWalltypical share,exampleWindow frameGlazingInstallationWindowtypical share,exampleFloor finishSubfloorPlinthFloor / cellartypical share,exampleGapsJointsChimneyVentilationtypical share,example1 · INSIDE2 · STRUCTURE3 · OUTSIDELiving roomFlat roofroof-linebranchRoofatticexampleWallexampleWindowexampleFloorcellarexampleVentilationexample
  • EuConX stop: where we can step in
  • decided by a survey
  • stop
  • The moving trains show the heat flow.
Stop

Roof / attic

How the heat travels

Heat rises, so an uninsulated attic floor is one of the biggest exits.

  1. Living room / boiler
  2. Ceiling
  3. Attic floorEuConX stop
  4. Roof covering
  5. Roof / attic · exit

EuConX solution

ODE Starflex 25 cm

Attic floor insulation: BK45 vapour barrier, with ODE Starflex 2 × 12.5 cm laid crosswise on top and BD70 film above.

From 12 700 Ft/m²material + labour · material in 3–5 working days
Request a survey

The map is an illustration. The proportions are typical values given as examples, not measured data; your house may differ. The free state programme (EKR) has been paused since spring 2026; our paid offer does not depend on it.

03Configurator

Rebuild your cube

Switch on what you would do: the house rebuilds at once, and the indicative estimate moves with the square metres.

The 3D view needs WebGL. The switches and the estimate work without it.

Cube house, 1975example model · not a design drawing
What would you renovate?

Estimate

indicative, not final
  • Attic floor100 m² × 12 700 Ft/m²1 270 000 Ft
  • FacadeBonus Premium F stone woolcustom quote after a survey
Attic floor, estimated price1 270 000 Ftestimate, materials and labour

24 rolls of ODE Starflex 12.5 cm

m² × 2 layers ÷ 8.4 m² per roll, always rounded up.

Request a survey

The drawing and the amounts are examples. The attic price is an estimate based on a rate starting from 12 700 Ft/m². For the other jobs we give a custom quote after a survey.

The figures are examples for a typical Kádár-kocka; exact data comes from an on-site survey.

Let's look at your cube too

With an on-site survey we can work from your own house instead of examples.

Request a surveyAttic calculator