Plaster the base and make it waterproof

Which materials are suitable for plastering the base?

If you want to plaster the base of the outer wall, it is good to pay special attention to what you are doing and how you are doing it. It is easy to use the wrong technology that lets water into it, which builds up there and can cause gradual damage. So it pays to think carefully about the best way to plaster the base. You should also pay attention to high-quality building materials. Otherwise, the savings that were made when buying can be converted very quickly into repair measures.

• The base of the outer facade is the part that connects to the Flooring begins. It is at least 30 cm high and is subject to higher loads. Because it is precisely this area that is particularly exposed to dirt and splash water. This is why this area in particular needs to be specially protected and properly plastered.
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• For example, rainwater has to pass through a gravel bed from the facade and thus derived from the base.
• If you want to lay paving stones, you should make sure to create a slope so that the water can drain away.
• There are special materials for base plastering. Elastic and mineral sealing compounds that enable reliable sealing. You can also use it to temporarily seal cracks and other leaks that have already occurred and thus bridge them.


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• Another advantage of these special materials is that they are quick to use and easy to work with. You can use them without a primer and so directly with the Plastering or start painting over.

How to do a plinth insulation

1. First, adhesive mortar is applied to the masonry. This is a mineral mortar that is particularly suitable for attaching facade insulation panels to various substrates.
2. The base insulation panels are attached to the mortar. These are also called perimenter insulation panels. You can get them in different strengths. They are made of polystyrene. This is a particularly flame-retardant material.
3. Adhesive mortar is again applied to the insulation boards. There is a special grid on top. This is called reinforcement fabric. This is a textile glass fabric, which is alkali-resistant. The reinforcement fabric is particularly suitable for applying it to adhesive putty.
4. Again, a layer of adhesive mortar is applied to the fabric.
5. When the mortar is dry, the next step is to apply the primer. This primer is important as it regulates absorbency. It also helps to promote adhesion in mineral top coats.
6. A colored stone plaster is then applied to the primer. This is a plaster that is particularly suitable for surfaces such as the house base, as it is very resilient. In addition, although it is water-repellent, it is also permeable to water vapor. You can get this building block plaster in many different shades.
7. Finally, you need a waterproofing material. A base protection or a bitumen coating is suitable for this.