Poroton or aerated concrete - which arguments are there?

When it comes to the construction of massive houses, there is always the question of the optimal wall construction material. Poroton and aerated concrete, in particular, are two commonly used alternatives as modern building materials. What is said for one, and what for the other alternative, is therefore examined in detail in this article.

Criterion strength

Poroton is a brick building material. There are many different strength classes available. There is therefore the right poroton stone in a suitable strength class for every application. You always stay "in the system".

The maximum strength of aerated concrete is not quite as high as with bricks. As a rule, however, a construction can be realized without mixed construction by appropriate planning and appropriate wall thicknesses. The low weight of the stones creates other static conditions.

Poroton or aerated concrete - which arguments are there?: poroton

A house made entirely of ytong stones is quite possible. Even for components that require high strength, such as U-shells, there are aerated concrete solutions.

Criterion thermal insulation

Poroton bricks have been greatly improved in recent years in their thermal insulation ability. Meanwhile, the limit of the technically feasible has been reached. Poroton perforated bricks, filled with perlite, already have a very high thermal insulation capacity.

Additional insulation is still required in a solid Poroton house. This creates a risk for thermal bridges, and thus also for moisture and mildew.

Aerated concrete bricks are still far superior to Poroton bricks in terms of thermal insulation. No other building material has the same high thermal insulation as aerated concrete.

Subsequent insulation can be omitted here. The values ​​required by the EnEV are far exceeded. In monolithic construction, this not only eliminates the cost of additional insulation, but also the risk of thermal bridges and the resulting adverse consequences.

Criterion cost

The costs must be seen in a comparison in total. Not only the material price of aerated concrete is cheaper. There are also other factors:

  • easier workability, thereby saving time and less personnel
  • big stones are possible, which also saves time
  • lower weight, thus lower transport costs overall
  • Thin bed processing possible, thus lower mortar consumption (cost savings)

On the cost side, therefore, the aerated concrete block offers very clear advantages.

Tips & Tricks

One of the disadvantages of aerated concrete is the poorer sound insulation due to the air bubbles. In some cases this can be an argument for building with bricks.

meta: How Poroton and aerated concrete compare in terms of cost, thermal insulation, strength and processability can be read here.

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