board a floor with ply or chipboard?

[mart99]

Just a quick question.

I've built an ensuite onto the side of my house with a concrete floor, we were going to step down into the room but I have decided to lift the floor by 4" by screwing 4"x2" battens down and then boarding over them to tile onto. How much should I space the battens by and what should I board it with? I have been told WBP ply and chipboard by different people. I am tiling with travertine by the way, also would BAL flexible be a suitable adhesive?

Thanks Mart

 

[GazTech]

Hi Mart,welcome to the forums,
Screw your timber at 300mm centres and put pieces across at 300mm. Then screw down 25mm wbp plywood down at the same centres and use 2 part flexible adhesive and flexi grout....Gaz

 

[White Room]

Would you use an uncoupling mat for travertine

 

[The D]

You will need to seal the edges and the underside of any timber you put down. Personally I would put water resistant chipboard and over board with 6mm hardy backer glued and screwed.

 

[MrSpoon]

id be tempted to use a birdseye potato waffle with corned beef ontop but thats mainly because im hungry :lol:

 

[White Room]

You bloater

 

[MrSpoon]

what can i say, i love food :lol:

 

[mart99]

what is an uncoupling mat?

 

[MrSpoon]

what is an uncoupling mat?

http://www.tilersforums.com/tiling-forum/2715-uncoupling-membrane-explained.html




http://www.tilersforums.com/tiling-forum/10074-durabase-uncoupling-membrane.html

 

[mart99]

thanks for the explanation, my floor is only 2.4mx1.6m so I presume I don't need it