Stabilize the wall - how does it work?

When walls start to wobble, it's really time to act. How to increase the stability of individual types of masonry, where this is not possible, and what measures are often recommended, read in this article.

Unstable walls

Walls can wobble for a variety of reasons. First of all, however, it is necessary to distinguish which type of wall it is. Instability in a drywall has very different reasons than, for example, a brick wall.

Static values

In an appraisal of the affected wall, the following aspects play a role:

  • the stance moment
  • the tilting moment
  • the cohesion of the bricks
  • the stability of the foundation (not always the solution of all problems)

Especially with free-standing walls, it is possible that a wall is at risk of tipping over. In general, however, it is possible to statically calculate the hazard in a specific case (to determine the overturning moment or to prove the stalling moment by calculation). Such calculations are carried out by a structural engineer when he is consulted.

Old unstable walls

When it comes to old masonry, which is no longer stable, should pay particular attention to whether the masonry is already heavily "warped". The carrying capacity of a wall - or if there is any carrying capacity at all - can usually be reliably assessed by a professional bricklayer.

Stabilizing walls in old or listed buildings is a challenge in many cases. An anchorage by means of wall anchors is often not possible, especially in masonry that has already been severely attacked. Here, it is often advised to cover the affected wall from the inside best with steel mats (reinforcing mats) and throw concrete. This stabilizes the structure of the bricks relatively permanently.

In most cases, however, one will not be able to avoid removing old, unsustainable masonry and, if necessary, re-building it.

Unstable drywall

If a drywall becomes unstable over time, it may make sense to plant it. The root system of the plants stabilizes layered masonry without mortar very sustainably and permanently.

Tips & Tricks

Static reviews are usually expensive, but in many cases really helpful. Structural engineers can also give specific advice or instructions on how less stable components can be stabilized professionally. These expert advice is often worth the money.

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