Renovating

Maintaining a supporting function

It is usually difficult for laypersons to assess whether a wall-supporting function is taking over or being completely decoupled in the building. A breakthrough changes the force distribution and other components or walls have to compensate for the loss of stability elsewhere. In order to prevent overloads and collapses, bracing prior to machining the wall must adequately compensate for this reduction.

Avoid point loads

Surrounding components such as the floor slab can be secured with steel supports. They are "clamped" vertically between the floor and the ceiling in front of the wall. The force distribution must be organized on a surface like a wall does. On the floor and under the ceiling horizontal support beams are used, where the steel supports end.

Before supporting, always check the condition and load-bearing capacity of the floor and ceiling. Not all constructions are suitable to take the force. Typical examples are:

Ceiling made of plasterboard

  • Floors and ceilings with specialist trades or filled timbers
  • Installing the lintel before or after

The force distribution can also be supported in the wall itself directly above the breakthrough. The required anyway installation of a fall before supports are dismantled, can also be brought forward. Before the breakthrough takes place, a fall over the later wall opening. The fall as a crossbar directs the flow of power past the opening.

The horizontal lintel is made of concrete, steel or, if required, a wooden beam. About the intended breakthrough opening a slot is pressed into the masonry. The lintel bearing of the lintel must protrude into the wall on both sides at least 25 centimeters above the lateral break-through edges. From certain wall and wall thicknesses two falls are required and mandatory.

Tips & TricksIn the widening of your wall opening, check constantly and repeatedly, the position of the columns and any reactions of the surrounding masonry such as cracking. Stop your work immediately if you discover loose supports or wall tears.

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