Wall cover grouting - what to do?

Not only wall coverings must be completely sealed, but also the joints between the individual elements. Why this is important, and which sealants can be used with different covers, read in this post

Types of wall coverings

Basically, there are the following groups of wall coverings:

  • Wall coverings with various sheets
  • Wall cover plates made of natural stone
  • Wall coverings with concrete parts

The cover with monk-and-nun roof tiles is now hardly common and is only occasionally used in special, Mediterranean designs.

It is not necessary to seal the joints in these tiles, as they have to be laid on a slope, overlap, and thus - as with the ordinary roof - there are no joints in which water could penetrate.

Necessity of joint sealing

Over time, water could penetrate under the cover over the joints and seep into the masonry. This would mean that the masonry is moistened over time, and could be damaged.

natural stones

The butt joints between the natural stones must be closed with a natural stone suitable sealant. It must always be ensured that the sealant is also suitable for the respective type of stone (for example sandstone). Otherwise, it may cause discoloration or damage to the cover.


In the joints between sheets can rely on ordinary, permanently elastic sealant. Only neutral neutralizing silicone may be used here.

concrete elements

In the mortar bed laid concrete parts need because of the underlying sealing slurry layer and the mortar bed usually no joint seal. But you can still grout the joints easily waterproof or seal permanently elastic with suitable sealants.

Tips & Tricks

For silicone fur, you must always make sure that silicone is not a durable durable seal. Silicone joints must be checked regularly and if necessary renewed or repaired. Professional silicone joints are therefore always referred to as so-called "maintenance joints".

Video Board: Tommy's Trade Secrets - How To Grout Tiles