Enable ventilation of the facade / Moisture protection against stagnant water

  • Erstellt am 2019-01-12 14:27:35

Roppo

2019-01-12 14:27:35
  • #1
Hello,

in the picture at the following link you can see my new building as it currently looks.


The plan is actually that after completion so much earth will be piled up that the house up to and including the 3rd row of facing bricks will be in the soil or gravel. The blue line shows the future ground level.
Possibly problematic in this regard – I am trying to find out here – are the ventilation slots in the facing bricks (red arrows) which are in the lowest facing layer and therefore also below ground level.

I wanted to lay a tarp on the house wall on the ring foundation up to the top edge of the 3rd facing row so that the gravel and water do not have direct contact with the facade and water cannot be absorbed. Around the drip strips of the house I would then like to lay a drainage to carry away standing water.

I am now only wondering whether the moisture behind the facade can be drained at all if the outlet, as described, is below ground surface...?

I hope I was able to make clear how it is supposed to look later.

Please tell me how you find this plan or how you would do it in my place.

Best regards
 

Müllerin

2019-01-12 16:16:15
  • #2
hm...
I have no idea if this is even professionally correct with you, I can't imagine it, it's logical that you heap up...

With us, the ventilation is not in the bottom row,



but in the one that later, when heaped up, becomes the bottom one.

However, I have no idea what effort it takes to scrape the joints free again in the right place and to close the lower ones, and whether you can demand that. I would probably try.
 

Roppo

2019-01-12 17:22:55
  • #3
Hmm I think it is done properly. I see this very often in new housing developments. But there are obviously many approaches. Scraping the holes higher free might be possible, but would anything really drain off!? Because I know that underneath is a sloped Styrofoam insulation that basically directs the water coming from above directly onto the slots. So the material behind the cladding is of course mineral wool, but at the bottom on the base there is still this sloped rigid insulation.

Any other ideas or comments?
 

Otus11

2019-01-12 22:28:46
  • #4
Much more important is the clarification of the question of how high the sealing layer behind the facing shell on the inner shell (also at least +15 cm above the later ground level) was carried out.

Search: Sockelabdichtung Klinker.

A flooded screed is definitely a worst-case scenario.
 

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