Fast drying screed V traditional

[Robert Clark]

Hi Guys

 

We’re having a screed laid soon and plan to have Antico flooring laid on top.

 

Our builder is suggesting using a fast drying liquid screed, but our flooring supplier suggests a traditional screed as it can have a damp proofing sealer applied on top if needed before laying the Antico, whereas he claims that fast drying screeds cannot,

 

Which option would you choose ?

 

Thanks 

[nod]

I tile on lots of both

Liquid is more expensive 

But flatter 

Traditional needs a day per mil to dry out 

75 days typical

Liquid is good to go after a week 

You will needs membrane under both 

So damp won’t be an issue with either 

[Robert Clark]

37 minutes ago, nod said:

I tile on lots of both

Liquid is more expensive 

But flatter 

Traditional needs a day per mil to dry out 

75 days typical

Liquid is good to go after a week 

You will needs membrane under both 

So damp won’t be an issue with either 

Do you apply Antico on liquid screed after a week ?

[nod]

17 minutes ago, Robert Clark said:

Do you apply Antico on liquid screed after a week ?

No experience of Antico 

But the screed needs to be fully dry before ceramic tiling or they will blow 

I would think Vinyl would be the same 

[Nickfromwales]

@Robert Clark I assume you’re referring to Amtico aka LVT? ( Luxury Vinyl Floor ). 

[Robert Clark]

3 minutes ago, Nickfromwales said:

@Robert Clark I assume you’re referring to Amtico aka LVT? ( Luxury Vinyl Floor ). 

Yes 

[Nickfromwales]

Ardex A38 dry screed can be ceramic tiled in 4 hours. Cementitious tile adhesive is completely different to the type of adhesive that the Amtico layers will use. There is an even quicker drying dry screws available, but I can’t remember the bloody name of it. I’ll ask my mate, he’s my got to screeder ( who will travel btw ). He laid @Russell griffiths screed. PM him if you want a reference. Top guys. 
You need to petition the fitters to find out what they’ll use before getting any more advice based on unknowns  

Ask questions about warranties if laid on liquid screeds vs dry screeds etc 

[Adsibob]

I asked my builder which screed he is going to use, and he tells me sand and cement based screed only needs a couple of weeks to dry. We are having about 65mm worth. Is he just plain wrong about this, or Is it possible he is using some sort of additive to speed up the curing process?

 We are laying 600x600x20 terrazzo on top, so need to be sure it works.

Edited June 27, 2021 by Adsibob

[Russell griffiths]

11 hours ago, Adsibob said:

I asked my builder which screed he is going to use, and he tells me sand and cement based screed only needs a couple of weeks to dry. We are having about 65mm worth. Is he just plain wrong about this, or Is it possible he is using some sort of additive to speed up the curing process?

 We are laying 600x600x20 terrazzo on top, so need to be sure it works.

65 days unless he’s using a modified cement product to mix it with. 

[Haylingbilly]

When you say it take 65 days to dry, how long is it until you can walk on it? Ie, how long do you need to keep people out of the screed area of your build?

[Russell griffiths]

12 minutes ago, Andy brown said:

When you say it take 65 days to dry, how long is it until you can walk on it? Ie, how long do you need to keep people out of the screed area of your build?

1 day liquid screed 3-7 for traditional if they have used a retarder to stop it drying to quick. 

[Adsibob]

How much more expensive is liquid screed than traditional? 

[Nickfromwales]

Random internet grab;

Link