Black jack (bitumen) below ground level

[billynw]

Hi guys,
Just wanted to know if anyone could help me out with this one.

basicaly I have had a damp problem on the side wall of my house.
The drive way way falling towards the house & bridging the DPC.
Also at the side of the house was very wet Soil \ clay
I have had a new drive way lower than the DPC & falling away from the house & I have removed all the soil away from the house.

But I have left a channel next to the house open.
It's about 10" wide & 12" deep.
Now I want to fill about 85% of this with hard core and then some nice stone on top.

Should I coat the brick work work below floor level \ DPC?
My dad says I should coat it with black jack \ bitumen.
Would black jack trap any damp into the brick and also if I use black jack it on it then place the hardcore next to the wall the sharp stones can cut into the black jack.

So should I treat it or leave at let it breath?

Many thanks guys & girls.

Billy

 

[esilv14]

Hi Billy

We are in a very similar situation to yours and have the same question, so I am just wondering what you ended up doing in the end and how its held up?

All the best,

Emma

 

[robinbanks]

Brickwork below the DPC is likely to be inherently damp anyway, and coating it with something won't change this. I wouldn't borher