Laying laminate and tiles on newly laid Screed?

Laying laminate and tiles on newly laid Screed?

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fizz47

Original Poster:

2,669 posts

210 months

Wednesday 16th April 2014
quotequote all
I believe I know the answer but just wanted to check.....

I am having some screed put down to even out the concrete floors. The extension of the house is approx 3 cm lower.

Approx 45 sq ft of screed will be laid with 3 cm depth

Majority of the screed will be covered with an underlay with laminate laid on top. A small amount will be tiled over.

From my understanding i need to wait 1 day per mm of screed laid... Is this over cautious or can I lay the flooring earlier?

What are peoples experience when they have laid the flooring down soon after the screed has been laid.

Will the type of screed laid also make a diference?







Neil - YVM

1,310 posts

199 months

Wednesday 16th April 2014
quotequote all
That is the accepted rule of thumb. And I would go with it.

Doing it early, If the underlay is water tight, you seal the moisture in, or if it dosnt seal, then the moisture has to go into the laminate, which isnt ideal!

Tiling would equally seal in the moisture.

Spudler

3,985 posts

196 months

Wednesday 16th April 2014
quotequote all
fizz47 said:
Approx 45 sq ft of screed will be laid with 3 cm depth

Will the type of screed laid also make a diference?
At 30mm I'm guessing its a self leveling (flow) screed?
30mm is to thin for a sand cement screed.

1mm per day is correct for a sand cement screed. A bit less in the current weather.


fizz47

Original Poster:

2,669 posts

210 months

Wednesday 16th April 2014
quotequote all
Spudler said:
At 30mm I'm guessing its a self leveling (flow) screed?
30mm is to thin for a sand cement screed.

1mm per day is correct for a sand cement screed. A bit less in the current weather.
Yes I beleive it is self levelling screed - so is that much quicker to dry?

Spudler

3,985 posts

196 months

Wednesday 16th April 2014
quotequote all
fizz47 said:
is that much quicker to dry?
There are fast drying screeds but you'll need to check with supplier as they do vary.

fizz47

Original Poster:

2,669 posts

210 months

Wednesday 16th April 2014
quotequote all
Spudler said:
There are fast drying screeds but you'll need to check with supplier as they do vary.
Thank you again...

Spudler

3,985 posts

196 months

Wednesday 16th April 2014
quotequote all
fizz47 said:
Spudler said:
There are fast drying screeds but you'll need to check with supplier as they do vary.
Thank you again...
You're welcome.

As a guide this is the same as our supplier uses:
http://www.easyflow.org.uk/liquid-floor-screed/dry...

tleefox

1,110 posts

148 months

Thursday 17th April 2014
quotequote all
Just to check - there is no underfloor heating in the screed?