Target page
How much insulation for concrete wall
This refinement page estimates how much insulation is needed to reach the target U-value for a how much insulation for concrete wall.
Used for quick thermal checks of walls, roofs, and floors.
Base wall build-up used for the estimate.
Remaining resistance is translated into insulation thickness.
Target U-value 0.20 W/m²K based on a how much insulation for concrete wall reference build-up.
How much insulation is needed to reach 0.20 W/m²K?
The refinement example starts from the base wall resistance, subtracts it from the target total resistance, and converts the remaining resistance into thickness.
| Layer | Material | Thickness | Lambda | R |
|---|---|---|---|---|
| Layer | Material | Thickness | Lambda | R |
|---|---|---|---|---|
| Interior finish |
Gypsum plaster
Interior finish
|
1.5 cm | 0.700 W/mK | 0.02 m²K/W |
| Structural concrete |
Structural concrete
Slabs and load-bearing elements
|
25 cm | 2.300 W/mK | 0.11 m²K/W |
| External finish |
Silicone render
Facade finish
|
1.5 cm | 0.870 W/mK | 0.02 m²K/W |
| Mineral wool |
Mineral wool
General insulation
|
16.4 cm | 0.035 W/mK | 4.68 m²K/W |
| Surface resistances | 0.17 m²K/W | |||
| Total resistance | 5.00 m²K/W | |||
Target U-value calculation
R = d / lambda
The target resistance is 1 / U. Once the base wall resistance is known, the remaining resistance can be turned into thickness for a chosen insulation material.
U = 1 / (Rsi + sum(R layers) + Rse)
For this reference page, mineral wool and EPS are compared side by side so the page stays useful without being empty.
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Use the main calculator to edit layers, compare materials, and export a custom result.
Open calculatorTarget note
This is a quick reference page for planning. Use the full calculator to verify junctions and detailed layer ordering.
Thickness comparison
Mineral wool and EPS are shown because they are common search targets and give a fast comparison baseline.