insulation boards

  1. T

    Leveling insulation boards

    Hi all Anyone know if it's possible to flatten/level out a 28m2 floor using 6mm insulation boards? Customer is having UFH, his current substrate is concrete and it is pretty all over the place with plenty of high and low spots...... was gonna get rid of some of the high spots using my grinder...
  2. aflemi

    ufh mat over 25mm ply. Need insulation boards?

    I haven't laid ufh on suspended floor for a while, just wanted to check procedure. Have lifted old floor boards as rubbish, plan to lay 25mm exterior ply onto joists then 160w ufh mat, fibre slc and tile with mapei keraquick with latex plus. Tiles are 20mm X 90mm wood effect 10mm porc. Anything...
  3. S

    Ctd contract insulation boards

    Anybody know if these boards are water resistant or water proof?
  4. 2

    Tile over tiles ufh insulation boards?

    Hi, I have a concrete kitchen floor job that has porcelain tiles with ufh that doesn't work so I have been asked to re-tile and fit new ufh . I'm not sure if the previous tiler used insulation boards under the ufh. My question is would it be ok if I had the height under the kitchen units to fit...
  5. Q

    Heat retention tests of insulation boards

    I spent a bit of time this morning performing the tests. I performed the test on the garage screed, then 18mm WBP, 10mm Marmox then 6mm Marmox. I chose not to use any 20mm boards as realistically most of us never use them. To ensure continuity the water (2 pints) was boiled then left one...
  6. D

    insulation boards on T&G

    Hi all , Was looking at a job today where the sparx were fitting the UFH on insulation boards they had installed and tbh it looked a bit iffy. Not being a fan of such methods I don't use the stuff on timber but had a couple of Qs for those that do. 1. Do you Screw AND glue or do...
  7. R

    Insulation boards

    Hi guys, Customer asked me two questions today and embarrassingly I didn't know the answers, although it must be said they were slightly obscure. He wants 60m2 of garage floor tiled, in porcelain with electric heating mesh. His questions were, are insulation boards load bearing, ie. would they...
  8. C

    Mixing Plywood and insulation boards

    Hi. I am laying floor heating over around 11m2 on a concrete floor. Overall area is 20m2 for cupboards and a utility room. I have bought enough insulation boards 6mm thick for the 11m2 and planned to use plywood to raise the rest. 1) Is it ok grouting plywood to the concrete floor? 2) I would...
  9. C

    6mm insulation boards on concrete under slate floor

    Hi just hoping someone far more knowledgeable will have the answer. I've got a concrete floor which is a bit crumbly in places. I plan to stick down 6mm polystyrene insulation boards then underfloor heating and slate tiles. Is this sensible or will I ruin the tiles?
  10. AliGage

    Insulation boards

    Evening Ladies and Gents, Anyone know of any good deals on insulation boards at the moment? I've got a conservatory floor to do next week, UFH, SLC and honed slate. 18m2, about 25 boards i think is what i'm after.
  11. Sean Kelly

    Insulation boards or Hardiebacker

    I met a tiler who always used insulation boards instead of Hardiebacker. I’ve got a job coming up next week that involves taking up 6mm ply (nailed & probably glued) to the floorboards. The kitchen units were then put on top! I’ve quoted for Hardiebacker, but am now thinking that 6mm...
  12. B

    30mm Insulation boards

    Hi folks, Have a job coming up which requires 30mm Marmox type boards - needed to level up and match adjacent floor height (other side of a door threshold) Anyway, local prices are pretty steep, so trying to find any useful contacts for cheaper prices before i spend more hours trawling the...
  13. N

    sticking down insulation boards ?

    Hi all what notch of trowel do you use to stick down 10mm insulation boards to a concrete floor ?
  14. S

    insulation boards

    hi all,could anybody help me out with this one?i have quoted on a 10 m2 sun lounge and the customer don't want to pay out for underfloor heating.will laying insulation boards on top of the concrete base which will be levelled with screed take away a bit of that coldness.thanks in advance for any...
  15. G

    Insulation boards

    I am having an on-going argument with a local supplier who insists that No More Ply backer boards are as good as Ekoboard type boards for insulation. I have asked for them to provide figures for heat loss etc but they cant. While I dont doubt that the No More Ply boards offer some insulation I...
  16. M

    Insulation boards - anyone used these

    Hi Has any one used XPS Thermal board (from the Underfloor heating store) ? They are considerably cheaper than kerdi boards / wedi boards etc I know you get what you pay for but these boards have very similar properties IE. thermal performance, resistance, strength etc Area I am...
  17. A

    tile backer boards and insulation boards advice please

    Hello all, I'm about to buy the boards I need for the kitchen and bathroom tiling, but I'm not 100% which ones to opt for, any advice would be very gratefully received! Firstly the bathroom. The wall tiles we're using are marble and too heavy to go directly onto the existing plaster skim...
  18. B

    Do i need insulation boards

    I have a kitchen floor to tile for a builder who is using the electric underfloor heating and was wondering if he needs to use insulation boards .the floor is 50mm sand and cement screed layed over 80mm kingspan
  19. S

    UFH & insulation boards

    Just a quick question, what are your thoughts on the pro's and cons of insulation boards? Are they really needed or not? eg: 10yr old concrete floor..... board or not to board? I know what the literature says, just curious on the pro's thoughts :lol:
  20. Q

    Used Mapei Mapeker underneath insulation boards...... will it ever dry?

    Never fitted down insulation boards before, but this morning I fitted down some warmup cement faced insulation boards using Mapei Mapeker I used a 10mm U-notched trowel to ensure a decent coverage. I made the mix up a little looser than normal as I was paranoid it was going to go off a bit too...

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