Fiberglass wallpaper: Can it be covered with roll plaster? Roll plaster in general?

Initial situation: We have decorated the entire living room with a fiberglass wallpaper from the Poco store, which has a yellowish tint. The previous owner of the house had done it that way. When all their furniture was once removed, you could clearly see signs of wear on the wall, partly also damages.

We also want to redesign the room color-wise. Now we had a craftsman here who explained the following things to us:

1. Basically, it is always the safe way to remove the old wallpaper before applying new wallpaper. However, with fiberglass wallpaper, which is specially glued, and in such a large room, this is an enormous effort. If we don’t want to do it ourselves, just the removal alone costs a lot of money because of the high time expenditure.

2. We could do a test: Press a wet sponge several times on inconspicuous spots on the wall. If there are no bubbles, it is very likely that new wallpapering or roll plaster would be unproblematic.

3. An alternative to wallpapering is working with roll plaster. With that, we could also even out irregularities of 2 mm, and the structure of the fiberglass wallpaper would no longer be visible.

4. Simply "stroking" such a cheap wallpaper, which is just quite yellowish, would probably not lead to a satisfactory result, also because of some structural damages.

We have seen pictures with roll plaster, it already looks great – if you do it right, I guess. According to the craftsman, working with roll plaster is not particularly more difficult than painting – do you have any experience with it?

And wallpaper over fiberglass or wallpaper over wallpaper in general? Some people report finding 5 layers of wallpaper in old houses?

I don't understand the craftsman. You should be able to repaint [Glasfaser] without any problems. Just try it. Buy good paint, with high coverage.

And you don't think textured plaster is a good thing?

The fiberglass is 23 years old and was probably the cheapest they could get.

Fiber optic is fiber optic. Whether cheap or expensive. I have never painted [Rollputz]. No idea. It may be good, but I don’t know. Where the craftsman is right: fiber optic is glued with dispersion adhesive, not with paste. Removing it is tedious. Karsten

I have no idea what possible differences there could be in quality, but: We left the aforementioned glass fiber in the bedroom and painted over it with Alpina. Now, we are certainly not painting experts, but overall the result was not 100% convincing. In some places it didn’t really turn out white, and the texture of the glass fiber no longer looks so even...

That was basically the basis of the considerations that led us to this rolled plaster.

I have no experience with fiber optic, but plenty of experience with textured roller plaster. I have applied it extensively in the house. Sometimes I rolled it thinly over drywall on the ceiling, sometimes I rolled it quite thickly over new plaster, for example in the bathroom on the walls (thickly primed corners with a brush and then rolled the walls), and in the kitchen I "painted" the walls with a corresponding brush in a restless wiping technique, so to speak as a decorative top plaster, if you will. However, I have not used textured roller plaster on wallpaper so far. We used the OBI Multiputz in fine or extra fine. In any case, it conceals small unevennesses. If you apply the textured roller plaster thickly and/or with certain techniques, you can even cover fairly strong unevennesses - which was the reason for the wiping technique in our kitchen. I roughly filled the very uneven spots on the old plaster beforehand and then applied the textured roller plaster thickly and with the wiping technique on top. Many products can also be mixed directly with the desired color. Personally, I did not find it difficult.