Floor junction between existing house and new extension

[jmpower]

Hi All,

I've seen some pretty similar posts to this on the forum, but not quite the same.

I've used a bit of self leveller in my time... literally 1 bag to fill a bit of a hole - So limited experience of it.

Where our extension meets the existing floor i.e. screed meets 12mm ply (over floor boards and joists) - there's a slight gap increasing towards the "corner" of the ply. The ply and screed are pretty level but the ply does ramps up towards the "corner" by approx. 5mm.

I was also thinking of gouging out a bit more of the perimeter insulation to flood with something, thick set self leveller or something?

I'll be laying LVT planks so need a reasonably tidy finish - what would you guys recommend? Self levelling compoung/Ardex feather finish?

All ideas welcome! Cheers,

 

[dazlight]

You want some ardex a45 rapid and some mesh mate to bridge the ply and screed. Then prime and a full coat of a fibre compound like ardex k40HB

 

[jmpower]

Hi Daz,

Thanks a lot for the response.

Do you think it’s necessary to coat the whole for LVT click planks (not glue down).

Cheers,

 

[dazlight]

Sorry mate. Thought it was glue down.
I’d just use a45 in the joint and sand it flat in that case

 

[jmpower]

Sounds ideal - cheers