What is the best way to level a floor that is covered with old quarry tile adhesive.The surface is very rough and uneven and is on top of a screeded surface which,if i try to remove the adhesive from the screed the screed starts to break up.
As said, latex floor smoothing compound to level the floor, if you are going to install an impervious floor such as vinyl or Karndean, you may need to apply a liquid damp proof membrane.
A good floorlayer will check this prior to installation,
The Correct procedure especially dealing with quarry tiles is to apply a liquid Damp Proof Membrance such as Ball stopgap 76 or Bona .
If it is Quarry tiles it suggest that the property is quite old and that could be the reason for the latex to break up
once the DPM has been applied leave for approx 24 hrs or as stated on the guidance notes. Then apply the same make in Latex as the the DPM. It is paramount this is done
Jeff. ( Guild Flooring)
Sorry for the late response it's manic at the moment!!
When we fit say a vinyl floor like Karndean we prime the sub-floor and use
Arditex NA latex liquid and powder two part mix. This should then be acceptable
to fit your new floor if applied correctly.
Barry Field. Director.
BRF Carpets and Flooring Limited.
If its breaking up badly , then you may need to take up the screed and redo it . In the same situation I have taken up all the tiles , then removed the crumbling screed and poured a floor leveller on top of the screed. Make sure you do not use a water based levelling compound , use the more expensive latex. As this will seal the floor and then you are ready to tile your floor again . Hope that helps .
If the floor is breaking up then you are best to take it all up and start again, this will also give you the opportunity to introduce a polythene membrane, if you have the budget and can get the depth then also put 75mm floor insulation in.
remove any excess adhesive and loose screed, prime the remaining substrate with acrylic primer, to stabilise and seal. The floor will require a levelling compound, make sure the levelling compound you purchase is capable of a depth that you require ie: 3-50mm, as some are thin bed only.