B
BuildingNovice
We have a concrete floor with 70mm insulation board over which the builder will be pouring 70-80mm screed.
Although he says in normal circumstances we would need to wait 1 week for each mm to allow the screed to dry, we can get round this by using a liquid DPM - he says in that case the tiles and engineered wood for the separate rooms can be laid immediately (although in practice he won't lay these until 2 weeks later).
If it is that easy, why does not everyone use a liquid DPM?
I will be very grateful for advice as to the pros and cons of doing this. After all, if you seal in the moisture, where will it go?
Although he says in normal circumstances we would need to wait 1 week for each mm to allow the screed to dry, we can get round this by using a liquid DPM - he says in that case the tiles and engineered wood for the separate rooms can be laid immediately (although in practice he won't lay these until 2 weeks later).
If it is that easy, why does not everyone use a liquid DPM?
I will be very grateful for advice as to the pros and cons of doing this. After all, if you seal in the moisture, where will it go?