This is how professionals plaster a concrete wall

There are many parameters to consider for professional plastering of a concrete wall. The Industrieverband Werk & Mörtel e.V. As the umbrella organization of all trades that deal with plastering, it differentiates in great detail the factors and conditions to be observed in order to obtain an optimal cleaning result.

The plaster base

The plaster base is an important basis for specialist companies when plastering a concrete wall. The types of concrete are divided into lightweight, normal and aerated concrete and a distinction is also made between wall panels or wall elements and masonry. The height of the concrete wall is also included in the assessment for choosing the right plaster, with a decision between storey-high and other heights.

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The exterior plaster

Outside, the plaster is primarily evaluated and adjusted according to the properties of the individual plaster in view of its task. In principle, mineral or organically bound plasters are available that can be applied with or without reinforcement such as fabric panels. The protective effect against rain and other precipitation can be individually influenced by additional coatings or special additives.

Light plaster or normal plaster variants are selected and / or plaster systems can be used. Systems for plastering a concrete wall produce, depending on the structure, special values for insulation and rain protection such as water absorption, the equivalent air layer thickness for water vapor diffusion and resistance to driving rain. Whether or not renovation plaster should be used is also part of the assessment for an exterior plaster.

The choice of plaster

The selection of the appropriate plaster based on the results of the external plaster test is decided on the basis of a number of other evaluation principles with regard to the conditions. Both the type of concrete and its state of preservation flow into the decision-making process. At this point, the aesthetic concerns that plastering should beautify the concrete wall are also important.

The location, shape and surroundings of the concrete wall are taken into account when selecting the plaster, as is the individual architectural look. This phase of decision-making also includes the color selection and the determination of a plaster system. The final decision factor for professional painting companies is an examination of the substrate.

The plaster finish

The selection of the type of plaster results in the appropriate plaster finish, which in turn takes into account the influencing factors with regard to precipitation load, heat-insulating properties and visual design.

Tips & Tricks The detailed guidelines of the WerkMörtel industrial association (€ 7.79 at Amazon *) e.V. can be viewed as a PDF on the Internet and are considered a standard work for craft businesses, architects, builders and interested laypeople.