screed

Screed has three meanings in building construction:

A flat board (screed board, floating screed) or a purpose-made aluminium tool used to smooth and to "true" materials like concrete, stucco and plaster after they have been placed on a surface or to assist in flattening;
A strip of plaster or wood applied to a surface to act as a guide for a screed tool (screed rail, screed strip, screed batten);
The material itself which has been flattened with a screed (screed coat). In the UK, screed has also come to describe a thin, top layer of material (sand and cement, magnesite or calcium sulphate), poured in situ on top of the structural concrete or insulation, on top of which other finishing materials can be applied, or the structural material can be left bare to achieve a raw effect.

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  1. L

    M54 screed?

    Are any of you able to tell me what a M54 screed is? I've been asked to price for installing a 90mm M54 screed into cold rooms then tile them. I've never heard of one before, @Ajax123 would you know? Any help appreciated.
  2. V

    Gypsum screed prep

    Hi all In process of tiling gypsum based screed It's one of the newer screeds that apparently don't need sanding ect The screed has been down a while and customer thought he was running the water through the heating system to help dry But ther must of being an airlock or dodgy thermostat because...
  3. Mapei UK Marketing

    Mapei Ceramic Product Training.

  4. I

    Isomat UK Fast-setting, self-leveling, polymer modified cementitious screeds

    For more screed options please visit our web site www.isomat.co.uk Fast-setting, self-levelling, polymer-modified cementitious screed, used for smoothing and levelling concrete or mortar floors, before laying finishing materials like ceramic tiles, moquettes, parquet, vinyl tiles etc. It can be...
  5. A

    Should I change this / correct fall in bathroom floor with waste pipe in screed

    I bought an old house and wanting to install wetroom tray in one half of downstair bathroom. On other side of bathroom is the 4 inch waste pipe falling out towards the wall where wetroom is going. Screed and insulation isn't in yet and alought I have the correct fall, where toilet sits...
  6. K

    Leveling a concrete floor

    Hi all, i have a small job to do its a passageway around 3 metres x 1 metre wide across the width its around 3/4 of a inch out of level what be best to level it just self leveling compound or screed , and hopefully tile next day cheers
  7. S

    Measuring Screed Humidity

    I have posted on here a while back about my undefloor heating project. I now finally have a floor again :) I have had a liquid screed laid, Gylvon Thermio+ at a minumum thickness of 36mm and a maximum of 52mm, average was 48mm. Video of it going down here screed.mp4 -...
  8. J

    Liquid screed drying times

    Was wondering how long until I could tile a liquid screed. I hear its 1 day per mm depth. Is that right? Any specific primer needed for liquid screed? Im tiling limestone on top of it. Thanks for advice in advance
  9. B

    Water UFH Screed leveling / repair for re-tiling.

    Hi, My tiler has taken up old tiles in our conservatory but some of the screed has come up from the UFH and needs levelleling before tiling. He's working on the rest of the house and has not come to a conclusion on the levelling. Picture below. Initially we talked about making up new screed...
  10. A

    Epoxy Grout on a Heated screed / Under floor heating

    Can you use expoxy grout over a heated screed or an under floor heating system? YES YOU CAN. Mapei, Ardex, BAL , Tilemaster, Mapei and Weber all say there is absolutely no problem in this procedure. There are a few guide line to follow when doing this: 1. Make sure the screed has been...
  11. M

    Would you Tile on this concrete / screed??

    Hi All Was meant to start tiling this conservatory today got there this morning and something is not sitting right with me. 600 x 600 B & Q 10mm ceramic tiles (against my recommendation). I have added pictures to give a better idea. All advice is welcome. To cut a long story short the area...
  12. N

    Granfix anhy screed Granfix CSA

    Hi all have a job coming up with a pumped screed and was thinking of using Granfix CSA which has been recommended to me . Has anyone ever used this or know if its any good and suitable. Thanks Luke
  13. V

    Gyvlon screed

    Hi all Got a gyvlon screed to prep prior to tiling I've tiled small screeds before and sanded them with belt sander and had no problems I've got a larger area of around 35mtrs so what do u use to scarify or sand Cheers
  14. R

    Preperation of concrete screed for Porcelain tiles outside

    Hi, I am looking for some advice on a couple of questions. I have set down a concrete screed for the installation of some Porcelain tiles, the screed only went down yesterday so the first question is how long do I need to wait to begin tiling and do I need to do anything else to the screed...
  15. A

    What Tile Backer Over Dry Screed?

    Hello all, I'd really appreciate some expert advice about what type of backer boards I should use for my bathroom floors. The original floor is 20mm ply glued & screwed to metal web joists. On top of that we've fixed 25 x 50mm battens (at 400mm centres) & in-between the battens we've got UFH...
  16. area tiling

    Ardex 51 Primer

    Anyone used this primer on a hemi hydrate liquid screed floor , says on the technical site only needs diluted 1 to 3 , and that one coat is sufficient!! Any primers I've used on these screeds before are all 2 coats rolled in opposite directions to each other ?
  17. J

    Bellitex Flow Screed

    Hi all I know I'm not a regular poster on here but would be grateful for some advice on a flow screed. My colleague is tiling a large floor that has been filled over the ufh with Bellitex floor screed made be Tarmac. The screeder has advised us that this Bellitex screed takes 21 days to cure...
  18. S

    Screed

    pricing up a job, customer stated that it's a concrete floor & very flat. I took the kickers off in the kitchen & im more than certain it's a gypsum screed or top coat. What do you guys think? It had been tiled previously 10 years they were down without issue but customer says that they came up...
  19. P

    How To Remove Tiles/screed/cement Which Has Been Laid On Top Of Victorian Hearth Tiles?

    In the course of getting my living room floor restored, I've discovered that underneath the boring old terracotta tiles on the fireplace hearth are some attractive patterned Victorian tiles. However the terracotta tiles have been fixed on top of them, with what looks like cement. Is it possible...
  20. T

    Love A Bit Of Screed In The Morning

    Started a restaurant shop fit today Screed in 45sqm and im done 400+sqm stone and tile to start tomorrow
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