Different surface structures on interior walls
Smooth interior walls are a matter of course. Only in exceptional cases, for example in rustic designs, rough plaster is also used. But even with "smooth" walls, there are significant differences. These are also found when filling and smoothing drywall panels:
Q1: suitable for tiles and for plastering
- Q2: suitable for fine plastering or for woodchip wallpaper
- Q3: smooth surface, as can be found on almost all interior walls
- Q4: mirror-smooth Surfaces without shadows, which can also be glossy
- Depending on your requirements, you can now select the respective materials. Putzarten for interior walls and fillers are used. However, depending on the circumstances, you will have to make another preliminary decision regardless of the quality of the wall slipper.
Different binders such as gypsum or cement
So not all plasters and putties can be used equally in all rooms. Gypsum-based plasters are PH-neutral and also regulate the room humidity, which is why they are valued accordingly. However, since gypsum can absorb a lot of water, plaster and putty based plasters that are based on gypsum are not likely to be used in wet rooms such as the bathroom. Here, preference should be given to plasters and putties based on cement.
Smooth plastering of different plasters and putties
In order to obtain very smooth surfaces with plasters and putties based on cement, the aggregate must be very fine-grained. But if the proportion of cement is too high, it can lead to the formation of cracks. Very smooth (glossy) interior walls are easiest to achieve with gypsum-based plasters and putties. For the plasters, the aggregate must be correspondingly fine-grained. Eventually, the so-filled inner wall is then sanded until the desired smoothness is given.
Preparation of the interior wall before smoothing
Now that you have made your choice, the inner wall to be smoothed must be prepared. First, it checks whether old coatings fall off. For this, small squares are scratched with a carpet knife or carefully tapped the wall surface with a small hammer. Unterschied In addition, a distinction is made between strongly absorbent and slightly to none absorbent walls. Heavily absorbent and chalking interior walls must be prepared with a primer, little to no absorbent walls with a primer. Maybe the wall should be evenly moistened with a quast.
Tips & Tricks Of course, there are more preparatory work. So also screws and nails are to be removed in the wall. Damage and holes in the inner wall can be repaired with the plaster, filler or repair mortar used.