Painting a facade

Valuable tips


Find out how

Each substrate poses a different challenge for paint, and each builder has their own ideas as well. Take your time and inform yourself. What is particularly important to you? Then make a conscious decision about your paint product.

Testing – the basis for a secure connection

In particular on exterior areas, it is important to examine the substrate carefully:

  • Can the substrate carry the load?
  • Where is dirt and initial damage recognisable? A simple wiping test by hand can provide some information in this case.
  • Is the render or paint flaking off, or can you scratch off the paint with your fingernails?

If so, a "cross-cut test" absolutely needs to be carried out. A chessboard pattern is cut into a small area of the old coating with a carpet knife and masking tape is then firmly pressed onto it. The masking tape then needs to be pulled off quickly. If parts of the old coating remain stuck to the masking tape, then this means that it can no longer bear the load and needs to be removed.


KEIM relies on good craftsmanship.

KEIM works closely together with painting businesses and architects to achieve the best possible results for your home. KEIM colours are very productive and highly color stable. The unique durability can only be achieved by selecting the right material and processing it.

This applies to the raw material as well as to the finished product. Good tools make work easier and also improve the result.

Painter craftsmen use brushes with a dense trimming and stiff bristles to give you more control when painting. When working with the roller, it is recommended to use long-haired scooters with fibers made of polyamide.

KEIM will be delighted to recommend qualified painters to you that will help you with the design and protection of your facade.




Safety is the most important thing! Meaning: When working on a facade, scaffolding should be erected. This makes work easier, faster and – more than anything – safer!

1. The weather does matter.

It should never be painted when it rains, in strong winds or on a damp substrate. Heat is also not optimal. It is best to start with the south side of a building. This means  working with the journey of the sun around the building, allowing the painter to work  in the shade. Substrates that are too hot make the paint dry too quickly – that is bad for the final result!

3. Facades should painted in entire sections

The facade should be subdivided into individual partial areas before the beginning of the coating work. Afterwards, every single area should be painted in one go.
Thus, irregularities such as unsightly approaches can be avoided!

2. Mask well!

Surrounding areas, such as windows or doors should always be taped carefully. For this, a special masking tape for the outside should be used - there are significant differences depending on the respective application. Afterwards, the adhesive tape should be removed promptly; it can otherwise not be removed without leaving residues.

4. What if something went wrong!?

Paint splashes should always be removed immediately and with plenty of water. If possible, you should first disassemble downpipes, awnings or the like.
This ensures a smooth workflow.