Raising height of porch floor

[James8869]

I need to raise the height of the concrete porch floor. It’s 1.7m by 1.3m and is currently about 70mm below the height of the rest of the house, but this does vary a little bit. The tiles and adhesive that I’m going to fit will take up about 13mm, so need to raise it between 50 and 60mm.

I was originally thinking of using some type of self levelling screed, but I do have some hardie backer board left, so I was thinking maybe chipboard and then hardie backer.


Any thoughts welcome.

Thanks

 

[James8869]

Seems to be too thick for a bonded screed, but too thin for a unbonded screed

 

[martygturner]

Its a porch don#t over think it, self level cement based does up to 50mm , add some 10mm tile backer job done

 

[James8869]

Ah fair enough. Do you know if it’s possible to apply self levelling in layers? I would need to mix 10 x 20kg bags to do it in one, which is difficult when they say they set in 20-30mins.

I was thinking this one:

UltraTile ProLevel One Floor Leveller

UltraTile ProLevel One Floor Leveller available to buy online at Underfloor Heating Direct ✓ Get free, fast delivery on all orders ✓

underfloorheating-direct.com

 

[noseall]

Seems to be too thick for a bonded screed, but too thin for a unbonded screed

Too thick? Eh?

Just go and get half a dozen or so bags of sharp sand and a coup[le of bags of OPC and mix up some good old floor screed.

 

[Tigercubrider]

Don’t breach the DPC