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The differences between exterior and interior plaster

In order to protect and visually enhance the walls of a building, they have to be plastered both inside and out. However, there are differences in the types of plaster that you can use for interior or exterior walls. This post will tell you everything you need to know about the different types of plaster.

What is plaster?

Plaster consists of a mixture of sand and water and a binding agent. A distinction is made between mineral binders and organic binders. The mineral binders include clay, cement, lime and gypsum. Synthetic resin is used as the organic binder. Other substances such as fiberglass or gravel can be added to the plaster to give it further positive properties. For each masonry you need a different plaster, which is usually with Top and bottom plaster must be applied.

- flush-mounted

You can compensate for unevenness with a concealed installation. This prepares the surface for the application of the finishing render. You can use both a thin and a thick layer of plaster for this.

- Finishing plaster

This is the visible layer of plaster with which you can design the facade. It is therefore also called fine plaster. In order to avoid cracks, you need to coordinate the top and bottom plaster.

Exterior plaster

With an external plaster you design the facade of the building. In addition, the external plaster protects the masonry from damage caused by moisture, dirt and corrosion. The external plaster also prevents microorganisms from settling on your building. In addition, the external plaster also serves to regulate the temperature in the building. Because a good exterior plaster stores the warmth of the day and lets it radiate gradually again at night.

Plasters with the organic binder synthetic resin improve thermal insulation. They make the exterior plaster weather-resistant, water-repellent and flexible. However, this plaster is less breathable. As an exterior plaster, cement-lime plaster has enough diffusibility. The water resistance is retained, unlike clay or plaster.

Interior plaster

With the Interior plaster design surfaces. In addition, the interior plaster regulates moisture and improves the indoor climate. This prevents mold from forming and you have high heating costs. Interior plaster also serves as a layer that supports airtightness for the building envelope. After applying interior plaster, you can further decorate the room. To do this, apply paint, textured plaster, wallpaper or tiles.

As an interior plaster, you should prefer the aforementioned mineral plasters to synthetic resin plasters, as the mineral plasters bind moisture. It is best to use lime, gypsum or clay plaster for the interior plaster.

MVM - your specialist for interior and exterior plastering

Interior plaster and exterior plaster serve different purposes and must be coordinated with one another. Hence, it is important that you turn to professional, experienced painters to do the plastering. With MVM you have a professional with many years of experience in the field of interior plastering and exterior plastering at your side.

Do you have a concern about plastering work? Contact the MVM now and make an agreement free consultation!

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