Not every basement floor is the same

Painting a basement floor usually means more than just the visual "beauty effect". Most cellar floors are a bare concrete floor. The tend to a relatively strong dust, so the painting of such a basement floor is quite advisable. In the case of new buildings since the end of the 1990s at the latest, a vapor barrier under the basement floor is usually to be found, since the construction techniques have developed drastically. In the period from the 1970s to the 1990s, you may be dealing with mixed soils. Before basement floors were already designed very differently for lack of the necessary building materials.

You can not paint every basement floor without hesitation

So old cellar floors are part of the moisture circulation. In many such basements there is a (normal) humidity of 70, 80 percent. About basement windows and not very dense (wood) windows in the living area, the circulation is largely determined. Then came the maximum dense plastic windows. Mold is only since then a big problem. But also the painting of such an old cellar floor probably means difficulties, as there is no vapor permeable coating, so that the basement floor could continue to have a moisture-regulating effect. In the instructions for painting a basement floor we therefore assume a modern concrete floor with vapor barrier.

Step-by-step instructions for painting a basement floor

possibly primer or depth base

  • possibly blocking ground
  • cellar floor or concrete paint
  • adhesive tape
  • possibly cover foil
  • paint roller
  • telescopic extension
  • various brushes
  • paint mixing bin
  • drill with whisk
  • rubber squeegee (squeegee)
  • possibly Grinders
  • Cleaning Material (Brooms, Vacuum Cleaners)
  • 1. Preparation

You can probably paint a conventional, smooth concrete floor without any preparation. If necessary, rough basement floors must be sanded down using a suitable concrete grinder.

Depending on the absorbency of the floor, you may need a deep base (highly absorbent basement floor) or a primer (little to no absorbent surface). Laundry kitchens and other damp basements should be provided with a barrier primer so that no water can penetrate the floor.

Before painting the primer, however, you must clean the floor completely. First sweep neatly with a broom and then suck in at least two passes with a powerful vacuum cleaner. Edges and plinths that you want to paint can be taped. Grund 2. Prime the cellar floor

If a primer is necessary, you can now paint it. If necessary, you can spread the primer evenly with a rubber water slider. Now you have to let the primer dry according to the manufacturer's instructions. Depending on your needs apply the barrier primer according to the same pattern.

3. Painting the basement floor

You can already paint your basement floor. It is best to use a paint roller with telescopic extension. Corners and edges are painted with suitable brushes. Depending on the substrate, it is not uncommon that you have to apply the concrete paint in two passes.

Tips & TricksDo not use traditional basement floor paints in a garage. The plasticizers contained in the paint can react chemically with the tires of your vehicle.

A basement floor, which has a moisture-regulating function in an older house, you can not paint with concrete color arbitrarily, as this would act as a seal. In such cases, floor coverings that are heaped up or tiles are recommended. Of course you will find in the house journal also contributions to the [laying of tiles] on different floors such as concrete, etc.

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