screed

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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. F

    Cemfloor liquid screed

    Does anyone know much about these screeds? I have the spec sheets here for it and a builder is proposing to use it on a floor, 44sqm with ufh in a glass link room, it says in the specs that ufh can be commissioned, force dried after 7 days and tiling can commence after 16 days, and there is no...
    • Flintstone
    • Thread
    • canada floor floor tiling liquid liquid screed screed
    • Replies: 4
    • Forum: Canada Tile Advice
  2. Ronin63

    "Dry mix" vs. concrete screed and which is stronger and price differences?

    Good morning everyone! I am a contractor for interiors and have an inquiry about ceramic tile fixation. I have a contractor, that has quoted for concrete screed , for the tile fixation. On site, he did a dry fix, now,,i'm not a mason, and i did some youtube searches, and ,,please clarify...
  3. J

    Anydrite Screed / wetroom questions

    Hi, I would appreciate any thoughts on a few diverse questions on a singly storey barn project we are doing. - I haven't used anhydrite liquid screed before. I understand it needs roughing up 5 days or so after laying to help it dry and for adhesives to work. I will check with manufacturers re...
    • Julian Power
    • Thread
    • questions screed tanking waterproofing wetroom wetroom tiling
    • Replies: 11
    • Forum: Tanking and Wetrooms
  4. M

    Anyone heard of this screed

    Hi folks Got a estimate to sort out, so get in touch with builder about floor screed Yes it's anhydrite but this is a new type that does not need sanding(haven't we al heard that one ) Alpha tech Anyone heard of this ? Just more mis informed builders
  5. F

    Anhydrite or Concrete - dont know

    Thought I would have an easy job to tile my daughters new build house kitchen floor but then I start reading on help forums about Anhydrite floors. But I do not know if she has one or not, its a new build Barrett home. My local supplier stocks Tilemaster and I see that they do Anhyfix but the...
  6. N

    TILING ON CONCRETE SCREED

    Hi lads, customer has a new build with standard concrete floor which has been down for 4 months (no problem) they have also got underfloor heating, (hot water pipe system) the screed on top of water pipes has only been layed for 4 weeks and they are phoning me all the time saying it is ready for...
    • nalla
    • Thread
    • canada concrete screed tiling
    • Replies: 17
    • Forum: Canada Tile Advice
  7. M

    Advise on concrete screed prepu

    I have a concrete floor to tile It's been down over a year but ,hers the catch It's been open to elements for that time as it's a Garden room with no windows or doors These have now been installed and it's water tight How long before tiling Thanks in advance
  8. J

    Benfer soloflex Anhydrite adhesive.

    hi guys and girls... New to the forum..... Has anyone had any experience with Benfer soloflex anhydrite adhesive..??
  9. G

    Adhesive for anhydrite screed

    I`m laying 140sq metres onto anhydrite screed. Could anybody recommend a supplier for a pallet of a suitable adhesive. I am based near Chester and can collect if necessary. Thanks
  10. T

    Thin porcelain 6mm x 1mtr x 1mtr on under floor heated screed

    Hi all, I have a 200 sqr mtr floor to fix thin porcelain 6mm x 1 mtr x 1 mtr on under floor heated screed. I'm sure I need to use a decoupling mat, any suggestions on which one would be best to use. I would like to use the lightweight highly deformable adhesive from Mapie and levelling clips. I...
    • Tim kingston
    • Thread
    • canada floor floor tiling porcelain porcelain tile screed under
    • Replies: 5
    • Forum: Canada Tile Advice
  11. M

    Up date on gyvlon screed prep

    Hi all After seeking advise on machine to best prep anhydrite screed Hired a machine with diamond disk as opposed to sanded disks Screed been down a while so lattience baked on Diamond done the job , may have struggled with anything else There are cracks at doorways and a couple of small cracks...
  12. M

    Anhydrite prep set up

    Hi all What is your set up for prepping these floors as far as sanding goes I've always hired polishers with 60grit But I've got a biggish floor to do that is going to be in stages Is it better to be Looking at buying second hand Is it a polisher with adapters to take the disks Anyone know of...
  13. J

    Porcelain on ufh sand n cement screed

    Hi, I’m struggling on finding enough info about porcelain tiles being laid straight on screed with ufh. The underfloor heating has currently been running for about 6-8 weeks at no more than 20 degrees. A few cracks have appeared over that time. I was hoping to now uni bond the floor and lay...
  14. F

    Anhydrite / gypsum dust

    does anyone know if it contains silica in any volume ?
    • Flintstone
    • Thread
    • adhesive anhydrite canada dust gypsum screed
    • Replies: 9
    • Forum: Canada Tile Advice
  15. Sean Kelly

    Screed & wet UFH issues.

    I went to see a floor on Saturday. Roughly 12sqm of screed with wet UFH in a ground floor extension. The screed went down last week. The surface of the screed was very rough and I could scrape up parts of it into my hand (very sandy). I could see and feel spongy insulation, as some of it was...
  16. P

    Priming screeded floor

    I am looking at tiling porcelain wood effect tiles and wanted to use Ardex x7 onto a sand/cement screed. I called their tech helpline today to see if Ardex P51 should be used. The advise given was no primer is needed just clean floor hoover etc. Does this sound right?
    • paulphur
    • Thread
    • canada floor floor tiling priming screed
    • Replies: 5
    • Forum: Canada Tile Advice
  17. R

    Tiling Anhydrite screed with wet UFH

    Good morning, Gents I'd really appreciate the advice of experienced members here. I've been doing a small barn conversion in Kent for myself for the past 7 years and it's still nowhere near complete. I think I probably have OCD and this is only getting worse. The footprint of the building is...
  18. D

    Schluter and anhydrate screeds .

    Does anybody know the answer to this. Schluter claim with ditra matting you can tile an anhydrate screed up to 2% moisture by volume . Question is does anybody know what that is as an rh figure . Thanks in advance for any help and wee wee taking
  19. S

    Remove concrete screed from Red/Black Quarry tiles and then clean and seal

    Hi Everyone, We have come across some Red/Black Quarry tiles in our hall way that have over the years had concrete screed over the top, we have been to try and scrape back but its taken a day to just scrape back a few, has anyone got any tips to aid this process, and once the screed is removed...
  20. M

    Anhydrite Screed - Builder Nightmare - Which Hygrometer

    Should have walked into a job that was left"perfect" by the customers builder on Monday but its gone to pot. Long story short its been down for 6 weeks but the Laitance had not been removed. Builder had no idea what it was. Has done loads of these floors apparently. Also two substrates (old...
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