Paving slabs changed colour

Joined
27 Dec 2017
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Country
United Kingdom
These slabs are only 6 months old. Why are they now this colour??

Also the pointing gets wet patches even when it is dry. Like now??

I
 

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find something else to worry about
but at least there not spot bedded
 
I dont think the patio is a problem. Just because you have differing level of porosity in the sandstone, I dont think that is cause to think the patio has been constructed incorrectly.

I think your problem is porous face bricks used below DPC.

Im sure the ACOS will solve any patio issues, even if they dont solve the wet bricks below the dpc. If your bricks are porous there is nothing to stop them soaking up water as they are surrounded by soil from the surface downwards.
 
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