And what type of adhesive are you recommending with 6mm backerboard ?Tile the floor first and put the WC on top
If the floor is good you can use 6mm baker board.
Pre mixed adhesive is not suitable for those particular tiles. You need to use a powdered adhesive that is sutable for porcelain, also a flexible grout. There are many different brands to choose from but you won't go wrong if you choose BAL Single Part Flexible adhesives or the rapid set equivalent if you have some tiling skills. prices can vary widely depending on where you are and if you have independant retailers near you. For BAL SPF expect to pay around £30-35 retail I would imagine.I'm going to tile my bathroom (walls & floor) shortly with porcelain tile which are roughly 60cm x 30cm. The walls are plasterboard and the floor is wooden, which I will cover with 18mm board.
From what i've read on here i'd be far better buying bags of powder adhesive and mix myself rather that pre-mixed tubs. I've only ever used ceramic tiles before and have used pre-mixed but think bags would be better for this job, does that sound right? if so, can anyone recommend what brand/type to buy and roughly how much to expect to pay?
thanks in advance
Russell
If you are using BAL cement based adhesive, then yes you do. Some adhesive manufacturers say it is not necessary but in any case it would not hurt to do so. priming gives you protection from the possibility of Ettringite Crystalisation forming as the gypsum of the plasterboard can react with the chemicals in the cement based addy.Hi,
Doing exactly the same job as Russell, do i have to prime the plasterboard? think yes but would like to know for sure.
thanks
If you are using BAL cement based adhesive, then yes you do. Some adhesive manufacturers say it is not necessary but in any case it would not hurt to do so. priming gives you protection from the possibility of Ettringite Crystalisation forming as the gypsum of the plasterboard can react with the chemicals in the cement based addy.
And what type of adhesive are you recommending with 6mm backerboard ?
Yes m8 the hardy rep told me the same thingDid you know that mapei recommend there single part flexi onto hardi backer 6mm on timber floors and not 2 part.....this i was told yesterday by mapei rep info at CTD...![]()
definitley tile first, what happens a few yeas down the line when you change your bathroom suite, chances are your potware wouldn't have the same plan profile! 9mm marine quality ply should be ok as long as joists aren't deflecting or bouncing. use screws every 150mm,here's a couple of questions,
would you recommend that i tile the complete floor then place WC and
washbasin ped on top of them, then secure down, or would you leave them in place and tile around them, i was going to do it the first way but then seen some photos on a training site website that seemed to suggest that tiling round them was the way to go.
I know that (almost) everyone on here recommends a min of 18mm ply
to cover exsiting timber floor but ther is no way i can use that thickness,
the most i can do is 9mm...just how high a risk is there of them cracking
(assuming i screw/ringshank nail every 6" and use correct flex cement).
really appreciate the feedback guys....