Tiling bathroom

Busted21

Hi guys I'm in the process of fitting a new bathroom and I have some questions that hopefully somebody can answer

1. I am re slabbing some walls what should I use I had in mind the green aqua plasterboard or should I use cement board If I am to buy cement board where can I buy it?

2. I plan on tanking the new shower area should I prime the new surface first before I tank or should I tank, prime and then tile??

3. If I am priming the plaster board before tiling what should I prime with and how????

Thanks in advance

King Mallie

Busted21 wrote: »

Hi guys I'm in the process of fitting a new bathroom and I have some questions that hopefully somebody can answer

1. I am re slabbing some walls what should I use I had in mind the green aqua plasterboard or should I use cement board If I am to buy cement board where can I buy it?

2. I plan on tanking the new shower area should I prime the new surface first before I tank or should I tank, prime and then tile??

3. If I am priming the plaster board before tiling what should I prime with and how????

Thanks in advance

Hi There,

1. Green slab
2. Prime then tank, the exact direction for the type of tanking system you will be using will be on box as some manufactures vary on their instructions.
3. You can buy some primer from you tile supplier and just paint it on with a small rad roller or paint brush.
PVA is also good enough if had any left over from painting if not I would recomment the primer.

0ph0rce0

When you buy the tanking system it will come with primer so no need to buy it separate. Just mix it up with some water, it will say on the box the primer to water ratio, then use a small roller or brush and just paint it on like you would paint.

Busted21

Thanks for replies ok so for the new slabs that aren't in the shower area should I prime those first prior to tiling. Also should the priming be done immediately before the tiling or should I do it the night before the tiler arrives??

One more question should I seal the joints of the new slabs if so what do I seal them with??

Thanks again

Joey the lips

Busted21 wrote: »

Hi guys I'm in the process of fitting a new bathroom and I have some questions that hopefully somebody can answer

1. I am re slabbing some walls what should I use I had in mind the green aqua plasterboard or should I use cement board If I am to buy cement board where can I buy it?

2. I plan on tanking the new shower area should I prime the new surface first before I tank or should I tank, prime and then tile??

3. If I am priming the plaster board before tiling what should I prime with and how????

Thanks in advance

1. Use aquaboard.

2. Are you tanking in a corner. Dont forget to seal the corners and joints with tanking tape. generally tanking systèms come with primer but yes you will have to prime it if it does not.

3. buy tile primer in a tile shop.


Tanking upstairs on wooden floors is a very specialist job. Its not something i would do with no experience. But if you must fine,.

One tip that has worked well for diyers is tile the shower area differently. that way if you mess up and have to repair you wont need to buy tiles for the whole bathroom. Another idea

cgarrad

http://www.gyproc.ie/index.php/products/plasterboards/gyproc-aquaroc/115

€45 a sheet in Chadwicks, will out last the house ;-)

Plasterboard is a joke for bathrooms.

jiggerypokery

I wouldn't bother with green slabs or cement boards. If your tanking all wet areas there's absolutely no point.

Busted21

Hi i am now in the process of reslabbing the walls in my bathroom and im wondering can you recommend any primers in Particular before the tiling gets done and where would you recommend that i buy it ,also is it neccesary to prime the slabs around the shower area before i apply the tanking kit??

Thanks in advance

classic tiler

Busted21 wrote: »

Hi i am now in the process of reslabbing the walls in my bathroom and im wondering can you recommend any primers in Particular before the tiling gets done and where would you recommend that i buy it ,also is it neccesary to prime the slabs around the shower area before i apply the tanking kit??

Thanks in advance

Pva bonding. Mixed with water it seals and helps the adhesive/tanking bond to the plasterboard. It's cheap and available in all hardware shops. A good practice is to apply a good quality silicone to edges of each slab before fitting the next slab.

jiggerypokery

Most tile adhesive manufacturers state you cannot use pva with their products. In some cases pva can absorb moisture and soften. If this type of failure occurs your warranty is invalid. Always read the bag and follow instructions, that way your covered if something goes wrong.

classic tiler

Pva Can be used because he's Tanking the walls therefore the Pva will not be in contact with the Tile adhesive.

jiggerypokery

Why would you advise people to use pva prior to tiling? To use a primer specified for the adhesive or tanking paste being used will cost 10 to 15 Euro per bathroom. I've seen lots of situations where adhesive has failed and it's always because simple steps weren't followed. The repair is more costly than the original works.

classic tiler

jiggerypokery wrote: »

Why would you advise people to use pva prior to tiling? To use a primer specified for the adhesive or tanking paste being used will cost 10 to 15 Euro per bathroom. I've seen lots of situations where adhesive has failed and it's always because simple steps weren't followed. The repair is more costly than the original works.

Usually when an adhesive fails its down to 2 things. 1) bad tiler. 2) adhesive not sufficiently bonded to wall. By using pva your actually sealing the plasterboard and avoiding the board from soaking up the moisture from the tanking. I'm totally against using plasterboard in bathrooms, shower units and kitchens but when faced with the cost of alternatives, 99.9% of customers will choose to stick with the existing walls. So I'm only suggesting the pva for adhesitivity purposes. (Adhesitivity means Bonding abilities)

jiggerypokery

Adhesitivity????

Look mate DIYers post questions on this forum trying to save a few quid by bypassing the professional. The advice your dishing out will cost people money. One of your other posts states if you turn off under floor heating for 24 hrs before and after tiling you'll be fine. Completely wrong.
Read the post (pva versus primed) in the link below and educate yourself.


http://www.tilersforums.co.uk/tile-adhesive-grout/2511-p-v-versus-primers.html

classic tiler

I'm a qualified tiler for over 20 years now. When I respond to a post I'm talking from experience. And from My experience, unlike Ronseal..not every product does what it says on the tin. So just so we are clear, what Exactly is Your problem with the advice I've given ? And can I ask what qualifies Your advice ??

jiggerypokery

classic tiler wrote: »

I'm a qualified tiler for over 20 years now. When I respond to a post I'm talking from experience. And from My experience, unlike Ronseal..not every product does what it says on the tin. So just so we are clear, what Exactly is Your problem with the advice I've given ? And can I ask what qualifies Your advice ??

20 years experience and you think this is ok

classic tiler wrote: »

Provided your screed was laid properly and the correct materials was used, you need to leave the ufh off 24hrs before and after laying tiles and run at room temp for a day or 2 and you'll be fine.

Some manufacturers want the heating left off for 2 weeks after tiling not 24 hrs.

In my experience products do exactly what it says on the tin.
Manufacturers test their products and they're happy to tell us what their limitations are. If they tell us not to use pva under their adhesives because there's a chance of failure then why use it.

classic tiler

jiggerypokery wrote: »

20 years experience and you think this is ok



Some manufacturers want the heating left off for 2 weeks after tiling not 24 hrs.

In my experience products do exactly what it says on the tin.
Manufacturers test their products and they're happy to tell us what their limitations are. If they tell us not to use pva under their adhesives because there's a chance of failure then why use it.

I've got UFH in my bathroom and I turned it off 24hrs before tiling and back on 24hrs later, that was 4yrs ago and both the heating and tiles are perfect. Manufacturers are obviously going to exaggerate times in order to fully cover themselves. I've stated from the start that I'm only speaking from My personal experience. And as for your Link regarding pva..if you read my post Properly you'd see that I was referring to applying the pva to the plasterboard before applying the Tanking..I did not say apply the pva before applying the tile adhesive. As I'm sure You are aware that pva has many uses and many limitations..it's a Glue, a Bonding agent and when Diluted it can be used as a Sealer. What Trade are you qualified in again ??????

jiggerypokery

classic tiler wrote: »

I've got UFH in my bathroom and I turned it off 24hrs before tiling and back on 24hrs later, that was 4yrs ago and both the heating and tiles are perfect. Manufacturers are obviously going to exaggerate times in order to fully cover themselves. I've stated from the start that I'm only speaking from My personal experience. And as for your Link regarding pva..if you read my post Properly you'd see that I was referring to applying the pva to the plasterboard before applying the Tanking..I did not say apply the pva before applying the tile adhesive. As I'm sure You are aware that pva has many uses and many limitations..it's a Glue, a Bonding agent and when Diluted it can be used as a Sealer. What Trade are you qualified in again ??????

Manufacturers are covering themselves, the fitter and the customer.

I'm a tiler - 13 years experience.

Read part 3 of the op's question.

Your reply to the op

Pva bonding. Mixed with water it seals and helps the adhesive/tanking bond to the plasterboard. It's cheap and available in all hardware shops. A good practice is to apply a good quality silicone to edges of each slab before fitting the next slab.

dodzy

Would you two just go get a room.

classic tiler

Ha ha. No point in us getting a room, we'd only argue on who gets which side of the bed. Any way "jiggerypokery" lets agree to disagree. Life's to short.

jiggerypokery

classic tiler wrote: »

Ha ha. No point in us getting a room, we'd only argue on who gets which side of the bed. Any way "jiggerypokery" lets agree to disagree. Life's to short.

Or what we put on the walls.

No worries as you say life's to short.