Exact query

Aerated concrete wall

Aerated concrete wall without insulation

Aerated concrete worked example: this query-specific view keeps the wall leaf bare so you can compare the uninsulated case before adding insulation.

Used for quick thermal checks of walls, roofs, and floors.

Quick result

0.45 W/m²K

Estimated U-value from the reference build-up.

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At a glance

Assembly type

Aerated concrete wall

Wall leaf only, no insulating layer added.

Total thickness

27 cm

Total build-up thickness is 27 cm.

Estimated U-value

0.45 W/m²K

The estimated U-value is based on the full layer stack.

Worked example

Worked example: Aerated concrete wall without insulation

The search-focused aerated concrete example keeps the result useful for the "aerated concrete wall without insulation" search intent without copying the other wall page wording.

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
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				2.21 m²K/W

How it is calculated

How this wall build-up is calculated

R = d / lambda

Each layer adds resistance using R = d / lambda. The final U-value includes the wall leaf, the insulation, and the surface resistances.

U = 1 / (Rsi + sum(R layers) + Rse)

This page is intentionally simple so the search result is not thin or empty.

Wall U Value Calculator

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Comparison

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How To Calculate U Value

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Lambda Values Table

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Insulation Thickness Calculator

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Open the calculator

Use the main calculator to edit layers, compare materials, and export a custom result.

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R-value vs U-value

Compare the two thermal metrics before choosing a wall or roof build-up.

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Notes

Search note

Pages like this support long-tail search queries and help users land directly on an assembly example.

Practical note

For detailed design, check the calculator and the wall guide pages to account for junctions and thermal bridges.