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underfloor

Underfloor heating and cooling is a form of central heating and cooling that achieves indoor climate control for thermal comfort using hydronic or electrical heating elements embedded in a floor. Heating is achieved by conduction, radiation and convection. Use of underfloor heating dates back to the Neoglacial and Neolithic periods.

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  1. C

    Underfloor Heating

    Hi Everyone, Im Quite a novice at this DIY lark. I want to put underfloor heating in my newly built extension kitchen/dining area. Should I put a additional timber on top of my floorboards and then insulation boards on top of the boarding too before I start to lay the heating mat ? Some people...
  2. E

    Electric UFH, Insulation and Ditra

    Hope someone can help. I'm having my kitchen refurbished and want to install UFH. The current floor looks as though it is tile on tile as, at the hall door threshold, it sits the thickness of a tile plus adhesive proud of the hall flooring. I also suspect that the concrete floor substrate is not...
  3. P

    Bathroom underfloor heating -advice

    Hello guys, I am after a bit of advice /guidance. I am replacing my bathroom floor with electric under floor heating and a tiled finish. The current floor is floors boards, thin ply and vinyl. The vinyl will be coming up and I have bought insulations boards to be fixed prior to the ufh going...
  4. 8

    Screed or not underfloor heating

    Hi all 1st post so hope I'm doing it correct I am tiling a floor in a bathroom and I have laid 12mm wbp plywood and laid electric UHF no the question is do I screed over the UHF mat first then spread tile adhesive and tile or do I just spread adhesive straight over mat and tile also does the...
  5. D

    Underfloor heating screed too thin?

    Hello, my first post proper. I have a large extension to tile. The floorscreed has been poured over the wet underfloor heating loops, and has set nicely. My problem is that the finished screed level is just under 40mm lower than it should have been. I now have a choice of either somehow adding...
  6. T

    Laying underfloor heating mat, blending height difference out?!

    Hi guys, Been searching for answers to my questions and found this excellent forum! Basically, I'm tiling a kitchen/hallway and downstairs loo. Same tiles, straight set throughout. No problem usually, but the customer wants under floor heat mat laid only in the kitchen, Its a concrete floor...
  7. M

    Indian stone flags on top of screed including underfloor heating.

    Hi, anybody who has laid Indian stone flags will know they easilly lift, I always P.V.A the back before laying and this works, my question is - has anybody laid them on sand/cement bed on top of a sand/cement screed with underfloor heating in ? My fear is that the rise and fall of temp may make...
  8. N

    Cracked travertine foor tiles underfloor heating!!! help please

    Hello, advice needed I have recently moved into a lovely house, it is 8 years old and has underfloor heating. I have noticed that the floor in the Kitchen has started to crack the tiles (4"X4") just by the outside wall. I found 2 cracked at first but now a couple of weeks later I have found 3...
  9. R

    tile thickness for over electric underfloor heating mats

    We need some advice. Have insulated and screeded bathroom floor ready for electric underfloor heating mats to be tiled over. We'd like to use traditional reclaimed quarry tiles, 30mm thick but this is fairly unconventional and most mat producers recommend a thinner tile. Does anyone have...
  10. M

    Underfloor heating or not?

    Hi. I'm having a new bathroom and kitchen fitted in December. I like the idea of underfloor heating although I already have a good gas central heating system, so therefore do I really need underfloor heating? My kitchen is 22sq meters so quite large, but my bathroom is small. I'm having them...
  11. R

    Tilling on a floor with Karndean already on floor & underfloor heating

    Hi Everyone Looking for some advise. I have just been to look at a job that has, Karndean flooring on a concrete floor substrate, and has electric underfloor heating. 1. Would you take up the Karndean floor (in V good nick) 2. If not taking up the Karndean, what adhesive would you use? Many...
  12. O

    Underfloor heating Mat in wet room

    I am soon to start a job which will have a underfloor heating mat in a wet room. I am wondering what is thebest way to install it from floor to tray former height. The heating mat will not be going on the tray former. Thanks ollie
  13. demi34

    Pipe underfloor heating

    What adhesive do you guys use on underfloor heating the floor is liquid concrete.
  14. S

    Minimum tile spacing for floor tiles over underfloor heating

    Hi All, This is my first post so I hope I have posted in the correct forum. I'm wondering what is the minimum tile spacing I should use for floor tiles I am laying? The tiles are 45cmx45cm and are being laid over electric underfloor heating (Devimat 150W/sqm). I have laid f-board 6mm...
  15. J

    Impey tanking membrane underfloor heating and self lev compound

    I spent ages preparing my wet room with impey tray and tanking system . I'm on a wooden floor (25mm ply) in upstairs bathroom and I want to protect the underfloor heating mat so tiler can start the wall first without damaging the heating mat. Could someone please recommend a good flexible self...
  16. F

    825x550x20 limestone on underfloor heated suspended 12mm ply

    Hello fellas, I have a customer wanting to fix 825x550x20 limestone tiles on underfloor heated, suspended 12mm ply floor. Due to bifold doors, the height is restricted, so cannot overlay ply. I'm getting mixed advice from tile suppliers, underfloor heating manufacturers, and adhesive suppliers...
  17. J

    tiling over chipboard over water underfloor heating.

    got a couple of bath floors , where water underfloor heat pipes set in metal trays between the joists. contractor has overboarded with 22 moisture resistent chipboard . tonge/grovved and screwed. no movement under foot. I used to lay ditra over chipboard but schluter now say they will not...
  18. B

    New Limestone Kitchen Floor + electric UFH - Grout cracked after 24hrs

    I'm hoping for some professional advice on what to do with my new Limstone tiled floor - I'm at my wits end!! I had a job carried out in my house by local a tiler which completed 1 month ago - Sept '12; details as follows: - New build house that we've lived in for 4 yrs since new. - 40 sq mtrs...
  19. Y

    Is underfloor heating & durabase ci

    Can underfloor heating be used over durabase matting ? If so would you screed mat first then screed UFH on top?
  20. J

    Jupiter underfloor heating system

    Just been to see a job today where Jupiter underfloor heating system being used. I have previously laid a stone floor on this about 5 years ago and have not had any comebacks. water pipes are set within boards and then clinker terracotta tiles are loose laid on top of boards directly over heat...
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