Tiles, UFH, Bitumen

[Sgt Bilko]

Shortly going to be retiling the kitchen and dining room, this time with UFH (Warm-up loose wire kit). I have seen some other pointers, and picked up some tips.

The kitchen already has 300x300mm tiles down, on top of bitumen. The dining room is now bare bitumen after taking up the worlds cheapest laminate flooring.

Do i have to take all the kitchen tiles up? Could i just lay 10mm ply in the dining room to a) match the floor level and b) create a little insulation, then lay UFH and tile on top?

 

[tictic]

i would recommend lifting tiles.

 

[Sgt Bilko]

Ta for that.

What is adhesive would be ok to use for putting under the chipboard?

 

[tictic]

sgt bilko

what subtrates do u have in either room?
kitchen? you havnt lifted tiles yet say they are on "bitumen"?
d/room? bitumen on chipboard?
existing tiles are they sound?what r they?
what tiles and size are u fixing to the 2 floor?
is there need for exspansion joint between the 2 rooms?

can u give answers to the above......

 

[Sgt Bilko]

sgt bilko

what subtrates do u have in either room?
kitchen? you havnt lifted tiles yet say they are on "bitumen"?
d/room? bitumen on chipboard?
existing tiles are they sound?what r they?
what tiles and size are u fixing to the 2 floor?
is there need for exspansion joint between the 2 rooms?

can u give answers to the above......

Bitumen runs through kitchen/dining room.
Tiles in kitchen are applied directly to bitumen
Dining room is now bitumen after taking up wood laminate
existing tiles are sound and only a few years old (discontinued stock), ceramic 300x300mm
new tiles are 300x300mm
no expansion joint needed (i think)

 

[tictic]

ok i take it the subfloor is concrete

as u are going to be putting ufh down

the bitumen will have 2 b lifted when ur ufh is on the heat will be transfered below as well as up, thus the bitumen will start to become liquefied and u will have a failure mate."de-bonding"
u can hire a scrabbler an lift as much of this as u can then when satisfied with floor then proceed to prep floor
slurry coat(cement:sbr)
ufh
2 part slc
addy
tiles
grout.
just check concrete for exspansion joints (cut lines in the floor) if u have them u will need to transfer through to tiling but u could just go for a de-coupling membrane...ditra..

 

[bathstyle]

You need some kind of insulation board if using UFH on concrete

 

[tictic]

You need some kind of insulation board if using UFH on concrete

forgot about that mate 6mm insulation boards

just wondering if this was a wind up?
posters sometimes dont give out enough info its like drawing teeth sometimes

 

[Sgt Bilko]

You need some kind of insulation board if using UFH on concrete

forgot about that mate 6mm insulation boards

just wondering if this was a wind up?
posters sometimes dont give out enough info its like drawing teeth sometimes

If the posters knew what to post, we would post it

 

[Sgt Bilko]

ok i take it the subfloor is concrete

as u are going to be putting ufh down

the bitumen will have 2 b lifted when ur ufh is on the heat will be transfered below as well as up, thus the bitumen will start to become liquefied and u will have a failure mate."de-bonding"
u can hire a scrabbler an lift as much of this as u can then when satisfied with floor then proceed to prep floor
slurry coat(cement:sbr)
ufh
2 part slc
addy
tiles
grout.
just check concrete for exspansion joints (cut lines in the floor) if u have them u will need to transfer through to tiling but u could just go for a de-coupling membrane...ditra..

Bit of a problem taking the bitumen up as there is a kitchen on top of most of it. I take it 6mm ply would not cope with the heat then.

Don't shoot me - trying to learn

 

[tictic]

ok sarge sorry mate

ok
1.take off ur kickboards around bottom units of kitchen
2.scrape of as much bitumen as possibly
3.either put a slurry coat over rest of floor or a 2part slc
4.thinset addy 5/6mm trowel on floor lay 6mm insulation boards down
5.lay ur ufh down check with multimeter
6.pour 2part slc over ufh using PLASTIC trowel
7.check ufh with multimeter
8.addy and tiles down checking every 1m2 with multimeter
9.grout
10.get sparky to connect ufh

show to ur wife...get ur payment??? lol

best of sarge

 

[tictic]

stagger ur insulation boards when laying sarge leave 2mm between then infill with mastic....need to get new laptop ere i think,this keeps crashing

 

[tictic]

flexi addy an grout also

 

[Sgt Bilko]

Ta very much. Got it now.