Hi, I'm looking for some advice on the height of a new patio. It's about 10mm below the damp proof course of the house. I'm concerned this may not be low enough. I've read that there should be 75mm exposed brick below the DPC. What happens if there is not? Will the house get damp? Any advice very much appreciated. I'm wondering if I should cut away a gap between the patio and the house and fill with stones.
Cheers, the builder said that as long as it was not over the water proof course it was fine. I questioned this a few times and was told it's fine. He said there would be a few cm between the patio and the WPC. But as it turns out it's only 5-10mm. Would a gap filled with stones be better? What happens if the patio is too high?
You could as you have mentioned cut a marging and fill with gravel, so the rain doesn't bounce so much. You could reduce the height of the gravel a little. You could wait and see whether you have actually got a problem. You could insert a garden gnome into Mr. O'Reilly, or hire Sybil with a cricket bat.