ceramic tiles on mineral felt

[keith r]

Does anyone have any advice how to lay ceramic tiles onto a newly laid mineral felt ( concrete sub-base ) balcony? Many thanks, Keith

[Dave]

Hi Keith and welcome.. Sorry but not possible to tile onto that.

[garythetiler]

put a 50mm sand and cement screed over it

[whitebeam]

As above with fibres mixed in.

[Phil Hobson]

put a 50mm sand and cement screed over it

That has worked for me in the past

[tilerjason]

as above mate, worked for me too

[jay]

is there a room under the balcony may need water proofing

[Phil Hobson]

Good point Jay, tanking first, membrane or paint on. Would help if there is a room below

[macten]

Would tanking still be necessary if the felt is under the screed?

[jay]

I would for the simple reason
is it waterproof now

would help the screed if it was applied on top of screed .That way screed cant get waterlogged . The extra weight and the chance of freezing and possibly causing screed debonding

just a thought

[young1066]

i have done that for several customers in the past,with no come backs,as long as the mineral felt is stuck down well,eg no movement or bubbles,i would joint tape and tank any perimeter seams that are a future possability for a leak,then you can either use a rubbergum paint on tanking membrane or self level latex(baton around your gulley)because it will run that way,and your ready for tiling,use single part flexable adhesive,dont use ceramic tiles no good for exterior conditions like frost etc,use natural stone,i use 18mm thick calibrated slate from nicholes&clark,or porcelain only if its graded for ext use,i always use wickes masonary sealer £15 for 5 litres its cheaper than topps tiles.none of mine have leaked yet,1st one was 8 years ago