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Discuss Do I need a drainage ditch/gully in the Tiling Advice | Tile Forum area at TilersForums. USA and UK Tiling Forum

dedee

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Can I ask a question here about drainage where horizontal tiles meet the lawn? Should I dig a gully, line with a geo textile and fill with gravel along the front edge of the terrace where it meets the lawn?
If so how deep and how wide? Should I bring the gravel up level with tiles or slightly lower?
Are there any alternatives?

Many thanks


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O

One Day

I would have tied the Ditra-drain into a drainage profile such as BARA-RT or the like and sent the water somewhere sensible.
 
O

One Day

South of England I suppose not much rain, but the front edge of that slab will now just soak water up and given a few years and harsh freezes may start to crumble.
I just like to get water away from concrete asap.
Shame that there is Ditra-drain and then a bare edge. Like half right but also half-wrong.
 
OP
D

dedee

TF
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Thanks all for the feedback. I was certainly not wanting to dig a soak away. We are on clay and I had one hellava job digging 100mm diameter holes 800mm deep for greenhouse foundations a year or so back.
Although not visible in the photo, unless you notice the height of the terrace above the ground on the right, there is a natural slope left to right.
Drainage was not a problem on the old terrace which was just tiles on concrete with the grass right up to those horizontal tiles edge. During 10 years I have never noticed pooling on that edge. And those tiles were some of the hardest to removed, none of them came off whole.
I was hoping that a ditch, a spade width by a spade depth, lined and filled with stones/gravel would both please the aesthetic preferences of the missus and provide protection along that edge.
I had read about using a perforated pipe in the ditch but not sure if that has any benefit.
Cheers
 

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