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    Underfloor Running Costs

    Based on your room it's around 2.6kw per hour assuming its running permanently. Your heat loss needs to be calculated so you can find out how much that affects it
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    Decoupling mat advice

    Hire a temporary boiler. Cheaper than replacing the tiles
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    Wet room tray ...

    Yeah that's about what I thought. Ah well.... Needs must I guess.
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    Wet room tray ...

    I have a walk in shower room ... Sort of a wet room but not quite. I used a kerdi style wet room former (can't remember the actual brand but cement faced styrofoam) and tiled with slate mosaics which have begun to show some issues with flaking. I would like to replace them. Is there any way of...
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    Anhydride screed problems

    Possibly it can be dried and then hardened using a low viscosity penetrative epoxy resin like PHS from flowcrete. Otherwise it might be easier to remove and replace. 60mm is OK. Looks thinner in the pic but that might just be perspective.
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    Anhydride screed problems

    My guess is water has been getting in from the shower. It looks very thin. Is it soft?
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    Hollow tiles with water underfloor heating

    It will probably sound hollowness there is no mass beneath the tiles. Might be worth checking properly for delamination before rippin up as it may not be that
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    Is this overkill for a tiled floor?

    The only way to tell if its dry is yo test it. If you can't get bothered yo test it I'd treat it as if its damp. You could dispense with the second layer of NA if you used a gritted primer but the cost might not justify so I'd go with the spec in the OP. Yes it would suit a wooden floor as well
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    Sanding anhydrite floor

    Why is the tiler not doing it. It should a standard part of floor prep for any screed.
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    Tiling onto self-leveller

    All the same rules apply to cement based liquid screeds that are in place for anhydrite/gypsum screeds. The only exception I guess is that you can use a cement based adhesive. ALL screeds should be dried, sanded, vaccuumed, heating comissioned and primed before tiling. uncoupling depends on the...
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    Thoughts on CTD prices & redundancies?

    Cement and polymer prices skyrocketed last year which is partly why prices have gone up so much.
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    Best practice for a large (120sqm) tiling job

    Underfloor heating should never be air pressure tested. It should always be tested when water filled. I assume you mean 75mm and not 7.5mm. Tiles should never be installed until AFTER the underfloor heating has been commissioned and run. It is not essential to uncouple porcelain but given the...
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    Thoughts on CTD prices & redundancies?

    Retail is generally cash with purchase so no credit exposure. Trade accounts generally pay after 30 days or so. Housebuilding, which i guess takes up most if the tiling work, has dropped off a cliff over the last few months so I'd guess they are trying to protect themselves from trade customers...
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    Mould under lifted tiles?

    Probably algae rather than mould.
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    Groundwork company refusing to guarantee work - is this right?

    I think the word guarantee is bandied about too readily. Most people look for a written document of some description which in all honesty is generally a worthless sales tool. Any tradespeople supplying goods or services are bound by legislation under the sale of goods act at the very least, and...
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    Proposed floor build up over UFH

    In terms of thermal performance a pug mix is probably the worst performer of all of them. If you needed the screed to act as a sub base to receive the tiles you would need 20mm cover over the top of the pipes. In the arrangement you are proposing you don't need it to do that, you are simply...
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    Proposed floor build up over UFH

    Why not use liquid screed rather than "pug" mix. It'll improve the thermal performance of tye heating enormously.
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    Large format tiles on liquid screed

    Anhyfix is no longer available
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    Anhyfix - discontinued?

    Im a screed man so I’m not actually a tiler. I don’t use it at all. That said yes the screed should really be primed. If you speak to kerakoll technical they will be able to sort you out a spec/method.
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    Anhyfix - discontinued?

    Biogel No Limits from kerakoll works well until Kelmore (the people who owned tilemaster previously) get up and running.

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