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Topic: Sandstone patio - spot bedding?, Sandstone patio - spot bedding?< Next Oldest | Next Newest >
williamsl5
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Posted: 03 July 2019,13:35 QUOTE

After some advice as I know nothing about patios

Just had our new Umbra sandstone patio laid and was disappointed to see circular patches appearing (see photos)
The guy who fitted them tells me this will disappear but from googling it looks like this could be spot bedding.
Would any experts be able to help? I have paid 50% of the cost to him already but loathe to pay out the rest without knowing if these will actually disappear over time

He's coming back tomorrow to take a look

https://imagizer.imageshack.com/img924/4668/VeSTzd.jpg
https://imagizer.imageshack.com/img921/157/sQUxUa.jpg
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Tom - Westminster Stone
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Posted: 03 July 2019,14:51 QUOTE

You are correct with your conclusion, not only will you see spots as you are doing but you also increase the risk of the slabs coming lose. If you've used a jointing compond you'll have used way more than you needed as alot of it will have fallen through and started to fill the voids before filling the jointing gaps.

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williamsl5
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Posted: 03 July 2019,15:00 QUOTE

Hi
Thanks for your help. So it is definitely spot bedding? Just want to be able to tell our guy that.
I'm assuming then that the tiles are ruined?
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williamsl5
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Posted: 04 July 2019,18:59 QUOTE

Hi
Just following on from this, he has now lifted the tiles and will re-lay. He's insisting on reusing the old tiles as the stains may dry out. Will this be the case, or should new slabs be laid?
Also should they be laid on a full mortar bed, or is screed ok?
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Tony McC
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Posted: 09 July 2019,10:28 QUOTE

It is most likely that the stains are permanent and this eejit has effectively ruined your paving for ever.

These are not damp or moisture stains that will eventually dry out: they are permanent mineral and insoluble salt deposits.

See Reflective Staining


Edited by Tony McC on 09 July 2019,10:29

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