Installation of hardiebacker 250/500

[Perfect Tiling]

Good post Bri. I always walk around on the board straight after laying just to help bed into the adhesive. Have done larger floors and used a colated type screwgun which saves a lot of time...also saves your fingers from the pozi bit going into the bone...ow. It still hurts!!!! I always trowel over the taped joints same as suave then feather out with a damp sponge...looks good when all done and much better than ply.

 

[Stef]

Snapping screws? How strange. Screws are definately better than nails as they pull the boards into the adhesive, I'd be a bit concerned about voids if nails were used.

The screws we bought were from Screwfix, stainless steel, I was putting them in with an impact driver & the heads were snapping off of a few of the screws. Not sure if the impact driver has too much torque as im driving the screws home.

I walk over the sheets when stuck down so they are getting a good bond then nail them straight away, you can see the nail pulling the board into the adhesive.

We have never had a failure using this method yet but thats not to say it is the right method.

I had to rip up a cutting (200mm X 800mm) of hardie from a chipboard floor & i couldnt believe the grip it achieves,

It took me a good 10/15 mins to get it removed.

 

[Diamond Pool Finishers]

The screws we bought were from Screwfix, stainless steel, I was putting them in with an impact driver & the heads were snapping off of a few of the screws. Not sure if the impact driver has too much torque as im driving the screws home.

I walk over the sheets when stuck down so they are getting a good bond then nail them straight away, you can see the nail pulling the board into the adhesive.

We have never had a failure using this method yet but thats not to say it is the right method.

I had to rip up a cutting (200mm X 800mm) of hardie from a chipboard floor & i couldnt believe the grip it achieves,

It took me a good 10/15 mins to get it removed.

wow an impact -screwdriver ! i thought they were for removing rusted screws ,surely a normal battery driver would do Robson,lol

 

[swanman]

I use my grinder to cut the hardi board

Works well

 

[Stef]

wow an impact -screwdriver ! i thought they were for removing rusted screws ,surely a normal battery driver would do Robson,lol

Once you use an impact driver you will never go back to using a normal battery gun again, they are far too heavy.

I only use my battery gun for cores & drilling some holes.

 

[Stef]

I use my grinder to cut the hardi board

Works well

Hope you use a good dust mask & cut it outdoors as the dust is toxic. :yikes:

 

[Martino]

When you fix the board with adhesive can you tile onto it straight away?,,,,i have also heard people just using pva to stick it down and screw it too. whats wrong with this way?

 

[prceramics]

2nd that impact driver with a gold bit use rapid set tile adhesive then screw, then tile straight away

 

[Andy Tiler]

When you fix the board with adhesive can you tile onto it straight away?,,,,i have also heard people just using pva to stick it down and screw it too. whats wrong with this way?

Once the board is fixed when your ready to tile just wipe it down with a damp sponge! And tile away

 

[gamma38]

Top post Bri:hurray:

 

[IHB]

Is there a need to leave an expansion gap if you fill it with tile cement?

 

[Martino]

Is there a reason not to use PVA to stick it down instead of adhesive?....if the existing is allready quite flat?....if its all over the place i understand to use adhesive for the voids but if the floor is pretty decent would you still use the tile adhesive?

 

[widler]

Mate,you keep mentioning PVA and some of these lads Will be dead by morning

 

[DHTiling]

Is there a reason not to use PVA to stick it down instead of adhesive?....

Honestly //????

 

[Plumbing Tiler]

Great post thanks Bri, very helpful, just a quick question, when you say that any deflection should be rectified before laying the Hardiebacker, do you mean by say laying SLC first to even it up?, I have a chipboard floor to do that is out by 10-15mm in places and was thinking of self levelling first then putting the Hardiebacker down onto the SLC with SPF, if this is acceptable would the SBR be ok to prime the chipboard with ready for the SLC (which will be Weber Floorflex)?