Patio drainage

[Tegid Owen]

Hi all,

I'm looking into replacing this patio for a new patio that fits just below the door sill (raised by 150mm from current height) so there's little to no step from inside to outside. This would mean that the new patio would be at dpc level. Could I use ACO dainage to overcome this problem? If so would i need the ACO to be at least 150mm deep? Also how could I configure the ACO drainage so it drains to the gulley shown in the photo.

Any advice would help.
Many thanks

 

[Wayners]

I don't like the idea of patio so close to dpc

 

[Tegid Owen]

To make sure water won't penetrate the dpc I was going to use bitumen adhesive strip on the red brick behind the ACO, slightly overlapping the dpc. Any thoughts?

 

[jj4091]

Yes that would probably be ok and this is not a criticism but it puzzles me why people of late don't want to have a step down onto a patio when you are going to have to step over the door threshold anyway.