small bathroom floor

[dcool24]

HI
A great site to learn so many tips guys
First time poster so be kind:smilewinkgrin:

I am moving my CH pump from below my first floor bathroom so I had a crazy idea to tile floor at same time. Bathroom is small (3sq metres) and most floorboards have been replaced by TG chipboard,I plan to put in extra noggins and my main question is do I lay 12mm plywood on top ? if so I only bond sides and under? if so what bonding do I use? and I screw it down at regular intervals 150mm apart using 25mm screws?

Or do I lay hardieboards or marmox down and tape over joins? So confused as read so many different views

I intend to use Bal products for the grouting and laying.
Tiles are basic ceramic 33cm x 33cm

Regards
richard

 

[Ian]

Hello Richard, use hardie 250 (6mm), it's a much better surface to tile to and much better suited to an area prone to moisture.

 

[mattle40]

I agree ^ a nice simple solid install,
Don't forget it needs adhesive underneath the board then screws too!

 

[Dontiler]

hello and welcome
and don't forget to prime your chipboard before applying adhesive for hardibacker, you can use sbr or similar primer just not PVA
good luck

 

[dcool24]

Wow thanks for prompt reply to all:smilewinkgrin:
cannot wait to start
just need to move pump first then onto the tiling
cheers to all
regards
richard

 

[dcool24]

HI
One more question folks i am going to use Bal single part flexible 20kg @ £45:yikes: will this be enough for use on hardieboards and for the tiles 3sq m total area.

What cheaper opitions are there or shall i stick to above
also what grout do i use
i know that is 3 questions :lol:
regards
richard

 

[Gazzer]

Plenty of cheaper options out there but even BAL isnt that expensive....it must be down to the shops prices.

 

[dcool24]

HI
Moved CH pump and finally got rid of airlock
so i have added extra noggins can i use any primer (cheap one)for the wood chip flooring,also it has old tape at the joins so i guess i'd better take all this off before laying the hardie 250
regards
d

 

[bugs183]

Use SBR, you can get it from most merchants, or to be sure its a compatible product, BAL Bond.
Thats an outrageous price for Bal SPF!!. You shouldn't be paying much more than £20+ at the most. Try Mapei Keraflex, thats a great adhesive.