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Posted: Sun Jan 20, 2019 10:18 pm
by Fifi
We've just had a slate patio laid (approx 4m x 6m). There is quite a bit of pooling happening, even with light rain. Our builder is saying this is due to it being a natural material, but our concern is that there is unsufficient fall to drain the water away.
Posted: Tue Jan 22, 2019 9:18 am
by Tony McC
Well.....the builder is right that slate is a natural material, but he's also less than honest because, had the paving been laid with adequate fall, there would be NO poooling at all.
If you have access to a spirit level, you can check for yourself, but I suspect you are now going to have a battle with this clown who doesn't even seem to be aware that ALL conventional paving, and that includes slate and all other "natural materials", must be laid with fall towards a suitable drainage point.
Posted: Fri Jan 25, 2019 7:39 am
by London Stone Paving
With materials that are heavily riven like Slate and Sandstone, the falls have to be 1/60 minimum to avoid pooling