Advice on Driveway too high

[mic233]

I have a concrete driveway which is too high, see attached images. The drive is quite long (think 4.5 car lengths) and slopes downwards away from the house. We are seeing damp issues in the room to the right of the doorway (see second image). There are 3 waste drainage channels along the drive also.

From reading online I'm thinking of digging a channel and filling with shingles, or would i be best fitting a drainage channel along the length of the house?
Any advice on how deep/wide the channel would be and whether the channel would need to be lined etc would be greatly appreciated.

Thanks in advance

 

[berty3000]

Assuming your render goes down to the DPC or just above then it looks as though the drive is high, so splashing from rain could be an issue on a part of the house that isn't sheltered from the elements. Not a foregone conclusion though, especially if there's a cavity. Although I see the drive appears to tough the render at one point, which could form a bridge. Does water puddle around there or get a lot of rain against it?

This is also assuming there isn't another cause for the damp in that room, such as a roof leak, leaky gutter, pipe, drain, etc... Might be worth ruling out these possibilities first. Is the render a water repellant and breathable type? Is the house well ventilated inside so that humidity isn't too high and moisture in the air can escape? Is the area of damp a cold, poorly ventilated spot which excess humidity could condense on to?

This website has a lot of detailed advice about paving relative to DPC, etc. (if that is the issue here).

Www.Pavingexpert.com

 

[mic233]

Hi Thanks for the reply, Came back after a couple of weeks away to plaster completely soaked and mouldy. Looking at the exterior brickwork there is a full crack in one of the bricks that leads into crumbled mortar so i think this may be the culprit. Any ideas how one goes about resolving this sort of issue?