Hello,
we are building a semi-detached house with a developer.
We have to do the painting work ourselves afterward
(we can no longer afford a professional painter).
We only imagined plastered walls
(which we find visually appealing).
Either just filling until the surface is smooth (e.g., Q3 level) and then painting the wall, or applying textured paint or roll-on render over the filled surface.
The developer has now expressed concerns and told us that in new builds there can be a very large number of small cracks.
We are building brick by brick with sand-lime brick (or rather, the developer is) and some walls are gypsum concrete, but about 90% are sand-lime brick.
How are your walls in new builds with only plastered surfaces, especially with sand-lime brick?
Some acquaintances who built with Ytong have so far only had minor cracks after 1.5 years (but only at the top of the wall, at the connection to the ceiling, with large cracks).
But not like the developer said, that there would be small cracks everywhere.
The developer recommends using painting fleece so that the cracks remain under the fleece.
I know that cracks can occur in new walls during the drying process, but we only know of occasional larger cracks, not many small or medium cracks everywhere.
I hope you can help me.
we are building a semi-detached house with a developer.
We have to do the painting work ourselves afterward
(we can no longer afford a professional painter).
We only imagined plastered walls
(which we find visually appealing).
Either just filling until the surface is smooth (e.g., Q3 level) and then painting the wall, or applying textured paint or roll-on render over the filled surface.
The developer has now expressed concerns and told us that in new builds there can be a very large number of small cracks.
We are building brick by brick with sand-lime brick (or rather, the developer is) and some walls are gypsum concrete, but about 90% are sand-lime brick.
How are your walls in new builds with only plastered surfaces, especially with sand-lime brick?
Some acquaintances who built with Ytong have so far only had minor cracks after 1.5 years (but only at the top of the wall, at the connection to the ceiling, with large cracks).
But not like the developer said, that there would be small cracks everywhere.
The developer recommends using painting fleece so that the cracks remain under the fleece.
I know that cracks can occur in new walls during the drying process, but we only know of occasional larger cracks, not many small or medium cracks everywhere.
I hope you can help me.
M
Myrna_Loy1 Jul 2022 10:32I would only use filler. If cracks appear after some time, fill them again and paint over. Fine cracks can be repaired this way, while larger ones will also show through the painting fleece.
driver55 schrieb:
In 9 out of 10 cases, it usually doesn’t work the first time.It’s definitely not rocket science! With enough determination, you can probably be in that 1 out of 10 who succeed 😉
The key is to be motivated and not give up after the first strip.
Watch 2-3 videos on YouTube to get some basic tips. Buy a good-quality adhesive paste and a wallpaper smoother or taping spatula, and get started 🙂
Painter’s fleece from Erfurt is one of the better-known brands; I used the 150 g type, which is relatively stiff. A lighter version could have worked as well. Otherwise, check out AS Meistervliestapete, for which I also had very good experiences and results, for example on eBay...
Depending on your Q2 finish, you may not need to apply any filler. Instead, just sand the surface to smooth out bumps and remove any imperfections.
Apply a primer, then spread the adhesive paste onto the wall and put up the painter’s fleece. If all else fails and it doesn’t work out or you’re not happy with it, you can peel it off without residue and consider alternatives. After all, you have nothing to lose, right?
Pwnage619 schrieb:
then paint the wallPwnage619 schrieb:
painted wallsYou mean walls that have been painted?! Painting is done by an artist, while applying paint is done by a painter or yourself 😉i_b_n_a_n schrieb:
Applying painter’s fleece everywhere on Q2 plaster won’t make anyone happy because the conditions simply aren’t right for it.Actually, Q2 plaster is designed to have something applied over it to mask future cracks and the current minor unevenness in the plaster.Pwnage619 schrieb:
I assume I’ll need to apply another layer of filler and sand again to possibly remove some small bumps or holes.So: we also painted over the Q2 ourselves. We avoided painter’s fleece because we aren’t professional wallpaper installers. I have been painting my entire DIY life.However, we were lucky: I can’t imagine the small bumps mentioned, we don’t have any. Or at least nothing that would affect the appearance. We have been living in the house for 8 years now. Cracks do appear, but only visible when very close. And in corners of beams. One beam is consistently cracked, which we want/will repair at some point.
Personally, I don’t recommend sanding over the whole surface here because that affects the plaster texture. This means you’d have to sand the entire surface, not just a small spot, because otherwise it becomes visible. Everywhere you sand additionally, you will later notice a finer texture on the painted surface.
You have to ask yourself what you want: a smooth painted wall or a plastered painted wall. These are different. We wanted the industrial style, so living with a small hole or wave on an 8m² (86ft²) wall is quite acceptable. Where we plan to make improvements soon with wallpaper are the drywall surfaces on the slopes and the masonry gable, as in raking light you can see quite a lot. I hope the wallpaper available today is easier to apply than what was available 20 years ago.
ypg schrieb:
Personally, I don't recommend just "quickly sanding over" in EIFS, because it affects the texture of the render. This means you would have to sand the entire surface, not just a small spot, since you would otherwise notice it on the finished surface. Anywhere you sand more, the painted surface will later show a finer texture.If you plan to wallpaper over it, then doing a quick sanding is acceptable. First, otherwise you can see the small bumps, and second, the sanded spots definitely won’t show up behind the wallpaper 😉
We received the house from our general contractor with a Q2 finish.
Afterwards, a friend professionally applied a Q3 skim coat and then painted it directly. This friend works in this field professionally.
We like the result, as I don’t like anything related to wallpapering.
There are some fine cracks here and there, but we prefer to fill, sand, and paint rather than use fleece or wallpaper.
We have about 153 m² (1646 sq ft) of surface area, and the friend completed the entire job alone in around 14 days.
Afterwards, a friend professionally applied a Q3 skim coat and then painted it directly. This friend works in this field professionally.
We like the result, as I don’t like anything related to wallpapering.
There are some fine cracks here and there, but we prefer to fill, sand, and paint rather than use fleece or wallpaper.
We have about 153 m² (1646 sq ft) of surface area, and the friend completed the entire job alone in around 14 days.
P
Pwnage6191 Jul 2022 11:24For us, it’s no problem to sand the wall beforehand and fill any holes to make it as smooth as possible.
Ideally, we would create a smooth wall and paint it gradually (“not just coat it 😀”).
If we can’t achieve a smooth wall or it’s not recommended, our first alternative would be textured paint (easy to apply and hides a lot) or textured plaster.
The last alternative would be painter’s fleece (since we haven’t had good experiences with wallpapering so far).
The most important thing is that if I don’t use painter’s fleece, the wall should not look like Swiss cheese after, for example, 1 year 😀
and shouldn’t have cracks all over it.
It’s normal and acceptable to fill and repaint a few larger cracks after 1–3 years, but the entire wall shouldn’t be covered with small and large cracks.
Ideally, we would create a smooth wall and paint it gradually (“not just coat it 😀”).
If we can’t achieve a smooth wall or it’s not recommended, our first alternative would be textured paint (easy to apply and hides a lot) or textured plaster.
The last alternative would be painter’s fleece (since we haven’t had good experiences with wallpapering so far).
The most important thing is that if I don’t use painter’s fleece, the wall should not look like Swiss cheese after, for example, 1 year 😀
and shouldn’t have cracks all over it.
It’s normal and acceptable to fill and repaint a few larger cracks after 1–3 years, but the entire wall shouldn’t be covered with small and large cracks.
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