New facade paint has cracks

  • Erstellt am 2009-06-20 19:09:34

Thommi

2009-07-01 22:21:12
  • #1
to your statements Nikolaus, Easter bunny pope I say nothing. I actually thought I could discuss a problem or disagreements here. But you probably also belong to the type of master who does not accept any other opinion. Under the motto "I am master and you have to obey". I have already met a few like that. Just for your information, even if you have been a master for 36 years, that by no means means that you are necessarily the better craftsman among us. Because the work is done by the journeymen and in most cases not by the master. If you consider the work in the picture to be completely correct and qualified, I wouldn’t even ask you to paint a basement.

Now to the other forum. It was also noted there that cracks appear where the paint was applied too thickly. One says "absolutely no defect". Then "I would also initially be dissatisfied with the appearance, and therefore I am interested in where the priorities should be set here."

The company worked correctly! These are ordinary drying cracks that occur in the somewhat thicker paint fill in the depressions! Maybe the coating could be rolled out a bit thinner, but then the protective effect of the coating on the plaster would also be reduced.

I then say that with a double coat the layer thickness could also have been achieved.

Then again "We are in Germany here and everything is looked at VERY CAREFULLY."

Why not ???????

Finally, it is explained again how the cracks occur and reference is made to the spraying method on which I have already commented in a post.

I just want to point out once again that the reason for the cracks is known to everyone. It is actually only about how the paint can be applied better so that such cracks simply do not occur.

I would like to see a prospective master painter present at an exam piece (facade) who stands up and says "ordinary drying cracks."

As I have already written, for me there is no surface, however it was coated, that afterwards shows cracks. All colleagues should keep that in mind, whether master or journeyman.
 

schwarzmeier

2009-07-02 14:32:18
  • #2
I respect your opinion, but you cannot claim this as a defect no matter how BIG and RED you write it.
If you want to spray in an urban area where houses stand side by side and traffic runs directly by, and the wind blows the spray, causing neighboring houses and vehicles to be splattered, what do you explain to the damaged parties? Furthermore, this does not prevent an increased material intake in the recesses of a roughcast plaster. If the temperature is appropriate with low humidity or warm wind, you get a very fast skin or film formation that dries from the surface to the plaster and causes such spots. What I see in the picture is the only thing I can assess, and it is absolutely acceptable and not a defect. You always talk about cracks, which are actually only film spots and not even penetrating the last coating.
The paint carrier is completely wetted as far as can be seen in the picture. The coating is technically fully functional. Again, slowly, I quote my colleague Martin Kempf in essence:
"The area to be assessed should be viewed from a usual distance under normal lighting. Usual distance means, for example, for facades the other side of the street!"
Completely readable in BAU E section Interior and Exterior Plaster
Technical article by Martin Kempf.
I add from:
"Guideline for the visual assessment of coated surfaces" by
the Working Group of Experts in the Bavarian Painter and Varnisher Trade.
On page 30 it says:
"Lightly visible drying shrinkage cracks in the recesses of strongly rough surfaces are to be accepted as long as they do not impair the technical functionality.
Exceptions are coating systems that serve to eliminate cracks in the substrate.
Fine cracks in these areas represent acceptable irregularities.
Assessment principles: page 8
"The inspection is usually to be conducted at the distance corresponding to normal usage.
Normal usage does not always have to correspond to actual usage. If possible, the distance of 1 meter should not be undercut during the inspection.
When assessing, it should be taken into account that irregularities cannot be avoided in any craft work."
That should suffice now, or do you also doubt the guidelines? Then apparently the authors of this work are also less competent than you.
 

Netzer

2009-07-02 21:41:29
  • #3
Of course, I assumed a two-coat paint job! I am not one of those painters who just slather everything on once and call it done, even if you apparently want to show everyone reading that all painters, except you of course, belong to this kind of craftsmen! In a broader sense, you can even assume a three-coat paint job from me, if you consider the Hydrogrund primer as a coat when followed by a silicone resin paint, or the priming with silicate primer followed by a silicate paint. By the way, when spraying, a second person has to roll it out afterwards, and in hot weather, it is not guaranteed that he can avoid these superficial drying cracks!
 

schwarzmeier

2009-07-03 08:53:01
  • #4
Right, Netzer!
Apparently, we professional master painters are all still a bit behind the 7 mountains and Thommi shows us the right way.
 

Thommi

2009-07-03 10:47:36
  • #5


Bavaria greets the rest of the world,

those are just guidelines anyway. But where does technical functionality begin and where does it end? For me, it ends wherever moisture can settle in cracks and freeze in winter. Likewise, dirt/dust will always accumulate there and will no longer be washed out by normal rainwater. I spoke with our foreman again this morning and he said he would not enter a legal dispute over a facade delivered like that. By the way, you guys need to agree on from which distance the completed work is to be inspected. You said 2-3 m, the experts in the Bavarian painter and varnisher trade say 1 m. Also, "faintly visible drying shrinkage cracks" are mentioned. Which I do not assume on the picture even if strongly enlarged.
 

Thommi

2009-07-03 11:15:36
  • #6


Hello Netzer, I definitely don’t exclude that and I also don’t want to paint everyone with the same brush. By the way, I also wrote that in my first post!!!!!!! But that’s just how it is in the tough competition on the market. Either you have regular customers or the price decides the contracts. If I paint a wall once and it looks good, why should I paint it a second time? I guess it’s not different for you, right? Moreover, we are supposed to always work cost-effectively (for the company). After all, your boss says you all want to get paid properly at the end of the month. There are also many things a customer doesn’t see, but if a layperson points out mistakes, they are usually real. And then you just have to take responsibility for that. By the way, we only paint/spray facades in the shade and if possible not in midsummer.

Regards, thommi
 

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