ᐅ Timber frame construction – diamond drywall panel – painter’s fleece (also known as painting fleece or painter’s mesh)

Hello everyone,

a question for the experts.

Our house is built using timber frame construction, and all walls and ceilings are covered with Knauf Diamant drywall panels.

Now, regarding the surface preparation for gluing painter's fleece, which will then be painted white.

The painters we consulted want to do a Q4 skim coat, which of course costs quite a bit.

Personally, I think the panels are already quite smooth—filling joints and screw holes twice, then sanding smooth, applying a full coat of primer, and then gluing the fleece.

I don’t know why, but I feel that Q4 is not really necessary across the entire surface for smooth drywall panels, right? Q3 would almost be overkill. It’s not an old building with uneven old plaster, damaged corners, and holes. It’s a new build with even and smooth drywall panels throughout.

There is painter's fleece and then there is "painter's fleece."
There is painter's fleece with 50g/m² (1.5 oz/yd²), which tends to emphasize uneven surfaces even more.
We used a thick one with 130g/m² (3.8 oz/yd²) that covers everything. You really only need to fill the joints.
I would skip Q3/4 finishing on drywall if you are going to apply painter's fleece anyway. But make sure to use a heavy-duty one then.

Yes, I had/have similar thoughts. I will take the advice about the heavy fleece.

It's strange that everyone says they have to meet the Q4 standard.