More advice regarding a free edge on patio - Correct order

[deegan1979]

Hi guys, I am facing yet another dilemma.
My existing patio extends 1.8 m from the wall off my house with a fall in places of up to 2" away from the house.
The garden then extends 4 meters to a retaining wall.
I have already dug the non patio area out to 4" below the patio to apply the base for astroturf.
This weekend I am lifting the existing slabs .
I plan to lay my new slabs in exactly the same place.
obvisously i will be adding to the base and filling what ive dug out for the turf.
heres the dillema.
if i fill the turf area with type 1 and add to the patio base with it also then lay my slabs. I will then need to add more type 1 to the turf area to bring it up to the correct hight so the turf and patio are flush. This will involve using a whacker along the freshly laid free edge which i wasnt planning to haunch insted i will use a bridging bond.
is using the wacker near the edge going to un settle and disturb the free edge ? Or should i be doing it a different way?
many thanks to u all (again)

[seanandruby]

You should always overdig your free edge 200/300 don't finish dead on your line or your edge will fail over time. Think it's time for some photo's D.

[deegan1979]

You should always overdig your free edge 200/300 don't finish dead on your line or your edge will fail over time. Think it's time for some photo's D.

Thanks Sean.
I will post some up tonight if u could take a look.
How do u mean dig more? Sorry

[deegan1979]

[deegan1979]

What do u think Sean and ruby?
The plan was once I have finally finished digging out for the turf. Was going to lift the slabs and type 1 the whole area.
Then lay slabs. Few days later add more type 1 the the turf area and sand to bring it's base up to 20mm below the top of the slab

[deegan1979]

Just found a page on here relating to free edges...
Am going to use the bridge bong on all slabs anyway plus using the 6 to 1 wet mix I'm using for all the slabs I will haunch the edge with the same mix up to 20mm below the slab surface and taper it down about 100 mm past the edge.
I will then tamp the type 1 closest to the edge with a hand tamper.
Think that's it

[seanandruby]

Didn't mean dig deeper, i meant dig wider than your edge. You could also place all the mot in one go and just alter the level along your edging slightly, better for wacking down in one go rather than disturb your free edge. Hope this makes sense had a tiring week?

[deegan1979]

Didn't mean dig deeper, i meant dig wider than your edge. You could also place all the mot in one go and just alter the level along your edging slightly, better for wacking down in one go rather than disturb your free edge. Hope this makes sense had a tiring week?

Hi mate. I get what u are saying. So lay my mot all over then add more to the raised turf side roughly to where the join should be so that once the slabs are down I can pack the edge ( over the haunching by hand)?
Yep always a long week, flat out doing kitchens in the week and some evenings then back to this.

[deegan1979]

Slabs have jetwash ed up nicely yesterday, type 1 , sharp and cement has all arrived too

[seanandruby]

Set your string line and dip down to top of sub base 40ml bedding plus your flag thickness. Where you starting your turf dip down to top of sub base your sand and turf thickness combined, so if it's recommended 20ml sand add that to turf thickness. Example: 20 ml sand plus 20 ml turf =40ml dip to top of sub base :;):
Doing a full days work then training for a 60 mile bike ride at night, do 10 miles plus every night and 30 or so at weekend, also doing gym workout few nights to build up for it and work in a couple of 5 mile runs whenever

[deegan1979]

Set your string line and dip down to top of sub base 40ml bedding plus your flag thickness. Where you starting your turf dip down to top of sub base your sand and turf thickness combined, so if it's recommended 20ml sand add that to turf thickness. Example: 20 ml sand plus 20 ml turf =40ml dip to top of sub base :;):
Doing a full days work then training for a 60 mile bike ride at night, do 10 miles plus every night and 30 or so at weekend, also doing gym workout few nights to build up for it and work in a couple of 5 mile runs whenever

Mate I don't know how u do it, I feel broken just from doing this....
I get what you are saying about the sand and turf will make up the thickness of the slab. But the area under the turf needs 40mm more type 1 to make up for the bed under the slabs. Not sure how I can make this up after laying the patio without disturbing the haunch'd edge when waking the extra 40 mm type 1 down.
I'm seriously broken after today. Will post a few
Pics later

[seanandruby]

Deegan, you wouldn't have to make it up after because you should of placed the mot at a raised level, in effect stepping it up, that way it will all of been compacted and just a bit of regulating here and there. Don't lose heart it will be worth the nag', er, i mean pat on the back off the other half :laugh:

[deegan1979]

Oh u have met her then??? Haha
Cool.
Sean, would u say a fall away from the house of 30mm over 1.8 meters is ok or too much? Ideally I'd hoped 20mm would be enough but don't want it sitting on the slabs when it hammers down

[deegan1979]

Also I've dug out a bit farther than I had planned so am now laying about 150mm of type 1.
Should I compact it in stages? Ie lay 50mm compact it then the same 2 more times?

[seanandruby]

Fall is fine D. Yes compact in layers 75ml or so.