Hydrophobierung Klinker

[swedis]

Hi,
We are a group in the masters program Energy Efficient Building Design at Lund univeristy. We wonder if there is any way to find a material that has the same properties or is the same as "Hydrophobierung klinker"? It is a material that you put outside on your brick wall to eliminate the risk of water penetrating the bricks. Here is a video of the material at youtube https://www.youtube.com/watch?v=ip2Bxxy_nTU .


Thank you in advance

Best Regards

[Christian Bludau]

Dear swedis,

the wall is probably treated with a water repellent. That changes the a-value and sometimes the µ-value of the first mils of the surface.

We have a tutorial how to handle that in WUFI. See http://www.wufi.de/frame_en_tutorials.html
-> Water-repellent treatment of facades

Christian

[swedis]

Thank you!

[swedis]

Hi again!

Im wondering, what would be an appropiate A-value (water absorption coe) for a material that repells water on bricks?
In your example you have used 0,5?

Best Regards

Markus

[Christian Bludau]

Yes, that depends on the repellent. You should see the data sheets of the producer.
In my opinion typical values would be around 0,02 to 0,05 kg/m²*sqrt(h). The µ-value should not change much.

Christian