Facing a concrete wall with or without a substructure

Facing a concrete wall with natural stone slabs, stones or tiles creates an appearance that can hardly be distinguished from a solid natural stone wall. Facing elements are made from all natural stones and can be screwed, glued or fastened with clamps to a substructure. Alternatively, it can be fixed with mortar.

Natural rocks of all types

One of the most popular ways to clad a concrete wall is to veneer it with natural stone. Slabs, usually one to two centimeters thick, are available in all common natural stones such as granite, basalt, marble, porphyry, slate and sandstone. A veneered concrete wall can hardly be distinguished from a solid natural stone wall, but it is much cheaper.

  • Also read - relational mending concrete wall
  • Also read - Assembling the substructure for cladding a concrete wall
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To embellish a concrete wall, facings in different styles are possible. Rectangular and square formats with joints create the impression of a brick wall. Irregular polygonal plates can be put together to form what appears to be a dry stone wall. The panels are attached to the concrete wall with mortar (7.79 € at Amazon *) and the joints are not filled.

Mortar or substructure

In the case of a free-standing concrete wall, for example in the garden, fastening with mortar is recommended and in most cases the method chosen. In the case of concrete walls with a facade function on or in buildings, insulation and moisture must be considered. In this case, ventilation is often recommended. In addition to screwing the facing bricks onto a substructure, there are adhesive and stapling techniques.

How to veneer a concrete wall

  • Facing panels
  • Possibly substructure scaffolding and
  • Screws and dowels or
  • Lime mortar and
  • water
  • Primer or primer (€ 36.80 at Amazon *)
  • Possibly grout
  • Tape measure or folding rule
  • Trowel
  • Joint trowel
  • Hand Brush
  • Possibly a wire brush
  • Possibly cordless screwdriver
  • Possibly stone cutter

1. Prepare the subsurface

Depending on the condition of the concrete wall, sweeping and possibly brushing the surface is usually sufficient to obtain a dry and clean primer.

2. Determine the layout

Lay out the facing bricks on the floor and sort the arrangement you want. Cut any corrections you need.

3. Priming

Prime the concrete wall according to the manufacturer's instructions.

4th. Apply mortar

"Throw " the mixed lime mortar on the wall and press open plate by plate. Remove any oozing mortar as best as possible with a trowel.

5. Process joints

Depending on the look you want, you must remove the grout that has been pressed up from the joints with a joint trowel or joint iron.

Tips & Tricks Test the durability of your mortar by attaching a test panel to the wall at a low height and waiting for it to set.

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