Virgin Hardie Backer?

[Martino]

Now then people, havent been on here for a while..been really busy and also was fortunate enough to have a holiday

I have a floor tiling job coming up and i am going to use hardie boards for the first time...can anyone give me any tips on using this?...i.e best way to cut?

and am i right that you screw it every 8" with rust reststant screws?

cheers!

 

[Rookery]

Straight cuts I score n snap. Key cuts I nibble out. I believe you can use a TC jigsaw blade but not used one myself.

 

[Ian]

Here's one I did earlier,

http://www.tilersforums.com/tiling-forum/58805-installation-hardiebacker-250-500-a.html

 

[Perfect Tiling]

Hi Martino...well done for losing your hardibacker virginity. Great stuff to use and even better to tile onto. Make sure the floor is deflection free and sound with no soft timber...clean it and prime it with primer to suit the adhesive your'e using. I often cut and lay my boards dry first cutting with a tungsten scribe that you can buy especially for these boards, you simply scribe into the board a coulpe of times and then break over a straight edge. If you have a section to cut out use an old saw to cut down to the scribed line...its a bit like working with plasterboard. The sheets should ideally be staggered to avoid long joints. Using a thin set adhesive comb the floor with a 4-6mm comb and set the board onto it...walk on it to press down. The majority of boards come with marks where to screw down...use screws that wont go through the timber and into a pipe!!!! When all boards are down joints should be flashed over with adhesive and mesh tape...again just like with plasterboard. Thats it...seemples. There was a good listing on here a couple of weeks ago showing in stages a floor being hardibackered. Good luck

 

[Perfect Tiling]

Well done Bri...you got in there before me. Follow Bri's guide Martino and you can't go wrong. :hurray:

 

[stoner]

Here's a tip,

'dont breathe the dust in'

 

[Martino]

Excellent advice there bri thanks v much.....one thing....its not going to take a full day to lay the hardie so....do i have to wait for the adhesive to go off or can i lay straight away?....with it being a cement board does it go off pretty quick? im talking about the spf....also is this always needed?.....i was talking to a tradesman who has been in the game for 30+ years and said on a solid flat floor he has just primed and screwed the boards with no spf? what do you think of this?...cheers again

 

[macten]

I know plenty of tilers who just screw it down but you really must use adhesive to fill any voids and do a proper job.
I personally don't use a primer on it but I do give a wipe down with a clean damp sponge prior to spreading.

 

[Ian]

Always use SPF, and if you use rapid set to stick them it'll have set in an hour or so anyway.


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[Martino]

not wanting to sound a n*b.....but whats the difference?......if the floor is solid and flat why always use it?...is it just a personal thing or is there some advantage to it?

dont mean to sound like a n*b just trying to work out the difference in my head

 

[Protilers]

Heres the facts....straight from the man:

Broken Link Removed

 

[Ian]

I know people (and hardibacker) say that it offers no structural strength, I disagree when it's bedded onto SPF, I've fitted it both ways and it always feels like a solid substrate when glued and screwed.


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[AliGage]

Not meaning to hijack this thread but does anyone know what hardies solution is for exterior tiling?

 

[Protilers]

Not meaning to hijack this thread but does anyone know what hardies solution is for exterior tiling?

they dont have one.......hardi is interior only......and only "water resistant"......and NOT water proof......and therefore...outside is a no, no......

 

[AliGage]

Yeah i read that on the info sheet. But it says they offer exterior suitable materials. Is this just the cladding etc on there website? Or do they offer a suitable tilebacker?