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Posted: Sun Jul 22, 2012 12:19 pm
by Jm67
I have laid 3x2 flags on a 100mm type 1 sub base and laid the flags onto compacted concrete sand. i misjudged the amount of hardcore required so the flags are sitting on 60-80mm compacted sand instead of recommended 40mm . Someone has told me that my patio will be ruined in 6months is this true need some advice folks or is it a case of lifting it????
Posted: Sun Jul 22, 2012 12:49 pm
by Jm67
I'm off work for a couple days and looking for opinions to see wether I need to lift them up or not it's a small patio only about 20 slabs in it and not used much of this affects anything???? Anybody?
Posted: Sun Jul 22, 2012 1:57 pm
by lutonlagerlout
suck it and see jim
i like to bed slabs on a sand and cement mixture
whats the worst that can happen?
they migrate then you have to relay it next year
LLL
Posted: Sun Jul 22, 2012 2:02 pm
by Jm67
Cheers yeah no big deal really just partners dad is a builder and brother a landscaper and took great pleasure in telling me I had done it wrong 
But I take it 80mm sand is a big no no ?
Posted: Sun Jul 22, 2012 6:14 pm
by seanandruby
.....Yup 
Don,t worry you can, as LLL says do it all again next year, or when no ones around, lift them and scrap out 40 ml, then relay :;):
Posted: Sun Jul 22, 2012 6:16 pm
by Carberry
Could lift and relay them in a day and you can be certain they won't go anywhere or leave them as they are and they may not move.
I've seen grey 3x2's just thrown down on soil and not move. I threw some down on 30-40mm of sharp sand at my yard and they haven't moved despite me leaving a few tonne of gas dumped on them and getting heavy traffic.
If it was me... I would just leave them be, and fix them if they do move.
Posted: Sun Jul 22, 2012 8:13 pm
by Jm67
Cheers Im just gonna leave them and see what happens they've not budged so far with all this heavy rain so fingers crossed
Posted: Sun Jul 22, 2012 10:43 pm
by lutonlagerlout
the main thing is jim that they have lateral restraint
either a kerb or a good haunching of concrete
but having said that i have seen 3 by 2 s laid on mud at the allotments and once they settle never move
suck it and see for now
LLL
Posted: Mon Jul 23, 2012 6:02 am
by local patios and driveway
Why didnt the in laws help you out?
Posted: Mon Jul 23, 2012 7:04 am
by lutonlagerlout
you know the craic dan
people are always ready to help until you ask them
but they are straight round with criticism
LLL :;):