Porcelain Patio DIY Help

JackZapper

Hi guys,

Looking at laying a new porcelain patio. I'm a DIYer and have put alot of time into researching to get comfortable however, a last minute change now.

My house , like most houses is surrounded by. 95mm concrete path. For my patio section I was going to bring the porcelain flush with the path however, it just doesn't feel right having this 20year old worn concrete next to a new porcelain patio. This is my problem.

How do I now tile across 2 different bases, one being old concrete straight onto mortar and 804. Will that not cause problems.

See the photo below . I'm kinda losing the motivation a little at this point. I have the old patio removed and excavated. This is becoming a headache for me.

I dont want to go breaking and removing the old concrete paths, plus I'm stuck to 24 inches at side my house ,(wheelie bin access)

HELP

IMG-20230427-WA0003.jpeg

bfclancy2

i'd take out the path, as a DIYer you will have issues tiling across two different surfaces i would say as whatever bed you are laying on the hardcore will move a little

10-10-20

https://www.boards.ie/discussion/comment/120530900#Comment_120530900

I think I agree, that is unless you want to cover the concrete in the tile and install a step with a partially embedded deep riser and differential movement gap so that any movement in the stone bed is somewhat hidden. That way the stone base can sink but not affect the tiling on the concrete as the differential won't be easily seen against the step/riser.

DublinDilbert

If the soil condition is good, i would put in and compact hardcore then just go over the top of everything. You are going to put 50mm (or so) of mortar under the slabs. There isn't that much weight in a patio and it is spread out over a large area, unlike a building etc.

I had a similar situation with 3 different levels; old patio, concrete path and dug out area like this. I brought up the other two area's to meet the patio with hardcore, well compacted, then tiled over the lot.

standardg60

As above there shouldn't be any movement if you use a good bed of mortar. Why was the patio base excavated though? You could have just laid on top of that.