Note. I will write this in English so that I can explain it better, maar je kan in Nederlands antwoorden natuurlijk.
I am renovating the kitchen and I noticed that some humidity is coming from the spouwmuur.
I am completely rebuilding the inside wall of the spouwmuur with cellenbeton because I will close the door and make one single wall with 10cm isolation and 4cm air spouw.
I thought to improve the resistance to the humidity adding a bitumen layer from the inside wall to under the spouw (see drawing)
is this a good idea?
what is the best way and what material to use? ( I have some left over bitumen onderlaag I can use)

I am renovating the kitchen and I noticed that some humidity is coming from the spouwmuur.
I am completely rebuilding the inside wall of the spouwmuur with cellenbeton because I will close the door and make one single wall with 10cm isolation and 4cm air spouw.
I thought to improve the resistance to the humidity adding a bitumen layer from the inside wall to under the spouw (see drawing)
is this a good idea?
what is the best way and what material to use? ( I have some left over bitumen onderlaag I can use)



