Raised patio project. Advice needed

[coop5]

Hi all.

I am starting work on my new patio this month. I just need to clear a few issues up and get some clarity.

I have searched but cannot seem to find info on the exact task I am doing.

I have laid 3 or 4 patios but never one which has been raised before.

So the patio needs to be raised by approx 3/4 bricks. I am going to need to dig footings around the three other sides of the patio, then have a small wall constructed which will bring the patio to the level I need (allowing for the fall)

Does this wall need to be double brick or can it just be single? This will allow me to install the correct footings.

Once the wall has gone off I will be removing the earth from within and filling with the correct depth of subBase and compacting it ready for the mortor and flags to be laid.

Here is a picture of the type of patio I am looking to install, although I think i will be going an extra brick in height:

I appreciate any help you can offer.

Many thanks

 

[r896neo]

The best thing although fractionally more work would be to use a brick outer skin and then a small 25mm cavity and a block inner wall. Stick a few ties in for good measure. This will keep the bricks clean and dry, otherwise the bricks will remain saturated and be constantly leaching out efflorescence etc. Other then than your plan sounds good.

 

[WabbitPoo]

I think that you'll be needing red or blue engineering bricks, and only one skin is required. Built loads of these over 20 years and never had an issue.

 

[coop5]

Thanks for replies guys.

I have started to excavate the area and will get footing in next week. I am going to go for a single blue brick wall which will be tgree bricks high.

Can you confirm this will be adequate?

Thanks all