UnevenExtension floor

[AndyBill]

the downstairs concrete floor in our extension is 'all over the place'
with regards to not being level,
it doesnt just slope , it has low spots all over , up to 25 mm difference in places,
it has vinyl flooring on at the moment and i was thinking of tiling,
is self leveling compound the way to go ?
my only concern with that is with the difference in levels i might be half way up the skirting board on one side of the room!

any suggestions welcome
thanks

 

[gcol]

It's not that important that your floor is level when tiling, what is important is that it's flat. You could use self levelling to get it flat - don't worry it won't all run to one end of the room, you still need to trowel it out.

 

[bananaspark]

had exactly the same situ here's what i did,

find the highest peaks and chip them off/grind down, then get a spirit level with a laser in it and use it to 'plumb line' or whatever you call it round the room with a pencil. you have to use a bit of judgement to find the highest point as a guide.

that line will be the level of your new floor all round.

get a heap of wooden battens and section off the room into a manageable segment up to the pencil line (for me it was 3-4 sqm). in the really deep areas to be filled get a couple of bags of ballast (a few quid a bag but saves on SLC) and fill where necessary. heap on the slc, (use a massive bucket to mix it and a drill whisk)

when dry the next day, you should have a large flat slab of concrete, tap out the batten carefully (could use masking tape on it). and redo the operation until floor is complete.

last step, find a masseur to sort your back out.

 

[Moz]

masseur... usually young polish girls ..lol

 

[bananaspark]

absolutely,
though not to be confused with a polish builder. - he will do your floor
for about 150 quid +100 on materials and 20 for vodka (no tea).

either way sounds good to me