Guide
Aerated concrete guideAerated concrete insulation thickness guide
Aerated concrete often needs less extra insulation than dense masonry, but the final target still depends on the chosen U-value.
Used for quick thermal checks of walls, roofs, and floors.
Guide page based on a 24 cm reference wall leaf.
The reference build-up uses a wall leaf, insulation, and finish layers.
The example U-value gives a quick orientation for the guide.
Aerated concrete insulation thickness guide worked example
This guide turns the general formula into a wall-specific thickness decision page.
| 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 |
| Aerated concrete 400 |
Aerated concrete 400
Single-leaf wall block
|
24 cm | 0.120 W/mK | 2.00 m²K/W |
| Mineral wool |
Mineral wool
General insulation
|
15 cm | 0.035 W/mK | 4.29 m²K/W |
| External finish |
Silicone render
Facade finish
|
1.5 cm | 0.870 W/mK | 0.02 m²K/W |
| Surface resistances | 0.17 m²K/W | |||
| Total resistance | 6.49 m²K/W | |||
How the guide estimate works
R = d / lambda
The guide starts with a base wall, adds insulation, and shows the remaining thermal resistance available for the target U-value.
U = 1 / (Rsi + sum(R layers) + Rse)
That makes the page useful for search, but the calculator remains the right tool for exact project work.
Related wall pages
U Value Aerated Concrete Insulation Thickness Guide
Open u value aerated concrete insulation thickness guide for the next step in this journey.
Open hubHow To Calculate U Value
Open how to calculate u value for the next step in this journey.
Open next stepInsulation Thickness Calculator
Open insulation thickness calculator for the next step in this journey.
Open supportOpen the calculator
Use the main calculator to edit layers, compare materials, and export a custom result.
Open calculatorWall calculator
Switch to the dedicated wall page for broader wall guidance and faster comparisons.
Open wall pageAerated concrete pages are useful for renovation and low-energy wall searches.
The guide is deliberately practical and search-focused so it stays useful on first load.
The full calculator remains the place to adjust surface conditions and finishing layers.
The page supports the wider wall content cluster and leads users back to the main calculator.