Travertine Vs decoupling membranes.....your opinions.

[peegee tips]

Hi all,

Just wanted to see what people think about using a decoupling membrane with Travertine on concrete floors that aren't heated.

Obviously for piece of mind ( belts & braces ) , but when could you perhaps not use it & when should you definately use it on concrete.

Your thought as ever would be appreciated.

Thanks.

 

[White Room]

Could be depending how old the screed is, a new one could crack due to drying out and an existing would probably be well settled and any cracks would have already appeared.

I have laid trav on older screeds without a membrane

 

[doug boardley]

me too 'Beam

 

[DHTiling]

New floors i tend too but older floors then no.. unless cracked to hell.

 

[david campbell]

jeeeze travertine!!!!!!!
nearly forgot what it's like to lay,it's been ages now and it's my favourite when finished!
better safe than sorry is my opinion so i would tend to try and talk the customer into it!

 

[Aston]

the size/ area of the floor comes into play...if its a fairly large floor and there is no expansion breaks in the concrete and there is evidence of cracks/movement then i would go on the side of caution but other wise i'd say no...

 

[Diamond Pool Finishers]

Hi all,

Just wanted to see what people think about using a decoupling membrane with Travertine on concrete floors that aren't heated.

Obviously for piece of mind ( belts & braces ) , but when could you perhaps not use it & when should you definately use it on concrete.

Your thought as ever would be appreciated.

Thanks.

do you mean finished concrete, ?
a concrete oversite,?
a screeded finished floor? just out of interest !! its the same ansewr

 

[White Room]

I've been down this road before gooner, a screed is not concrete but it's the way most describe it

 

[Richard Edwards]

I agree with Aston tiling

If the floors a big un - without expandsion joints say 80/100m2 plus or long and thin, I would ensure un coupling membrane. if not and the structure is old and concrete is a few years old and any settling has happened, I would not. Then I would use a extra resin cement based adhesive and add polymer at correct rate for adhesive mix. Ensure reasonable joints and grout with quality - polymer enhanced grout

Richard Edwards
The Quality Tiling Co Ltd
South Wales

 

[peegee tips]

do you mean finished concrete, ?
a concrete oversite,?
a screeded finished floor? just out of interest !! its the same ansewr

Yeah I guess I was refering to a screeded floor mainly, plus floors that have extensions & stuff added to meet the original base.

Sorry for the wrong definition !!

So if you decide against decoupling are you still using a normal flexi adhesive or 2part?