Does the structural builder have to paint the transition between styrofoam and brick wall black?

Good evening

Today I had a plasterer here who is supposed to do the exterior plaster for us.

When we walked around the house together, he said that our shell builder should first paint black the transition from the Styrofoam to the brick wall (outside).

We built on a slope. Our floor is underground.

The concrete walls are painted black and covered with the mentioned Styrofoam.

It sounds logical, but the shell builder immediately said that it doesn't have to be done. He even said that the black bitumen could penetrate into the wall...

What do you say about this? I am also surprised that the second plasterer said nothing about it.

No one has an idea or opinion about that?

At our company, the bituminous thick layer is applied up to above the first row of bricks on the ground floor, as well as the perimeter insulation and [Noppenbahn]. Above that, wider bricks without a bituminous thick layer are used.

At our place, the bitumen thick coating is applied up to above the first row of bricks on the ground floor, as well as the perimeter insulation and studded membrane. Above that, wider bricks without bitumen thick coating are used.

At our place, a coating was also applied up to above the second row of bricks, but I can't remember what it was called, it was gray.

Best regards
Sabine

at our place, a coating was also applied up to above the first row of stones, but I don't remember what it was called, it was gray.

That was probably a sealing slurry.

On the topic: How is it supposed to be prevented that surface water penetrates under the first row of stones? There is a sealing membrane between the floor slab and the masonry there. In its current condition, it is ineffective.

The masonry at the top left in the picture looks somewhat adventurous. How far does the masonry protrude above the intermediate ceiling?

Hello forum,

The sealing against moisture from the ground is regulated by DIN 18195 and DIN 18533.

Accordingly, the sealing must be elevated at least 15 cm above the planned maximum water level (ground surface). Therefore, I would classify the work as defective.

According to the aforementioned standards, a special expert plan (architect) must be created for sealing measures. Has this been done?

If not, it is initially a planning defect.

Regardless, the executing company has the so-called duty to inform. The contractor should have recognized the defective planning and pointed out the expected defects.

If this has not happened, it is an execution defect.

I would document the situation and report the defects in detail. A deadline of 1 week for defect rectification is sufficient. Afterwards, rework should be refused and substitution threatened.

I would definitely stop the continuation of the work until the sealing has been properly installed. Retrofitting will be difficult to impossible.

Due to the complexity, I would involve an expert with the corresponding field of expertise.

Best regards

Kristof