DPC level in shed.

[eastender3]

Hello folks,

Just had a new shed built but at the rear wall, there is a drop in the pathway. Don't know if I should fill it op with gravel as otherwise rain water could accumulate and go beyond the DPC level.

I attach two photos. that's rear door.

 

[theprinceofdarkness]

The DPC should be 6" below the render, so it seems to be buried. Dig down until you find it , then 6" more put some edging to your 9" wide trench and and back fill with gravel. Hopefully the water will drain away before its level tops the DPC. If it does, then a further ground drain should be put in.
Frank

 

[eastender3]

The DPC should be 6" below the render, so it seems to be buried. Dig down until you find it , then 6" more put some edging to your 9" wide trench and and back fill with gravel. Hopefully the water will drain away before its level tops the DPC. If it does, then a further ground drain should be put in.
Frank

Thanks Frank for the reply.
I am not familiar with this, when you say dig down 6 inch more and put some edging, what you mean by that, and also don't understand 9 inch wide trench. Is there any photos or diagrams you could show. Is it not sufficient to dig down 6 inch and then fill it up with gravel?

 

[theprinceofdarkness]

When digging down at the side of the wall you need some width to the trench. As a silly example making it 2" wide will mean a galleon of water will fill it up, I am suggesting that 9" should work, if its too much trouble, then make it 6" wide. Again, as the DPC should be at least 6" below the bottom of the render, it is 3" below the ground at present (do a trial dig to find out where it is). So your trench is only 3" deeper then the DPC, so it can only contain a little water before it over tops the DPC. The real problem is that we do not know where the DPC is. When water drips off the wall, it will bounce of the grass and soil making the bottom of the wall dirty, gravel should help to stop this. You need some sort of edging else your soil will wash down into the gravel.
Frank