Insulate masonry

The masonry insulation distinguishes between different forms. Below is more information about all the options for insulating masonry.

Types of masonry insulation

In principle, there are three major areas for insulating masonry:

  • Insulate masonry from the inside on the exterior walls
  • Insulate masonry or basement bath
  • Insulate facade

When insulating the masonry from the inner wall, it must always be taken into account that the special features of the building are considered. In conventionally built houses (not energy-efficient homes), building envelopes are never completely sealed because they cause air exchange and dehumidification.

When insulating the masonry this is to be considered. If a vapor barrier were to be installed here, the moisture could possibly no longer escape and it would lead to significant mold growth. Therefore, the structure of the internal insulation of masonry should always be clarified with a specialist.

Insulate masonry exterior in the area of ​​the basement sump

The basement bath is insulated from the outside. Differences are mainly the white and the black cellar. Many existing buildings have a black basement bath. The name, therefore, because it is said here with bitumen.

The insulation of the masonry is also a sealing. Often this is necessary when the masonry is damp. Only the pure dehumidification of the masonry is rather insufficient.

The traditional structure of masonry insulation is as follows:

  • masonry
  • primer
  • bitumen thin film
  • Bitumen dry film
  • Perimeter plates (EPS)
  • possibly drainage plates

How exactly the structure has to be made, is also dependent on the groundwater situation. Pressuring groundwater requires a different approach than fast-flowing leachate and non-problematic groundwater.

Masonry seal facade

The masonry of the facade is also isolated today. In most cases ETVS systems (thermal insulation composite system) are used for existing buildings. First, EPS sheets are glued to the prepared facade. Then these plates are plastered with a particularly flexible plaster base.

This plaster base derives all thermal movements. Then comes a layer of conventional plaster on this ETICS plaster. Under certain conditions, the plates are not glued directly to the Dassade. Then one speaks of a ventilated ETICS facade. The installation of a ETICS should be well thought out and decided only with expert help.

Have the installation of an ETICS checked by an expert

The problem of a ETICS: the ETICS cools more than the brickwork. As a result, the dew point may be directed to the masonry. This means that the humidity condenses on the masonry. Damage to the building fabric is then inevitable.

Tips & Tricks

Here's how to process grout that you may need depending on your insulation work.

Artikelbild: ALPA PROD / Shutterstock

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