cement backer board

[celt]

Just seeing a clip on youtube where a guy was showing how to install floor tiles and he was using a cement backer board ontop of a concrete/sand cement floor. Im wondering how common is this. The reason why i ask this is that when working on site all these years, i have never once seen a tiler lay the cement backer board then tiles over it. Its always on top of the screed or ontop of plywood if its ontop of joists.

 

[Ian]

Can you post a link to the vid?

 

[celt]

Can you post a link to the vid?

[video=youtube;xioiHJoaee4]http://www.youtube.com/watch?v=xioiHJoaee4[/video]

 

[Andy Allen]

when dose he say the floors sand and cement..?

 

[area tiling]

Great coverage on the tile their , 10% I'd say!!!

 

[Stef]

Great coverage on the tile their , 10% I'd say!!!

That's why all floor tiles should be back buttered..

 

[celt]

That's why all floor tiles should be back buttered..

To be fair, i would have made the adhesive abit more wetter than that (where he showed taking the tile off) It looked abit dry to me

 

[stusgsx]

Rubbish video

 

[celt]

Rubbish video

Why you say this

 

[Andy Allen]

Why you say this

I would try and find another video to try a teach yourself to tile....

 

[Diamond Pool Finishers]

To be fair, i would have made the adhesive abit more wetter than that (where he showed taking the tile off) It looked abit dry to me

You should only add the right amount of water to the mix--IE a per makers instructions ........ :9:

 

[afright]

He did not put any adhesive on the tile edge before fixing the tile

 

[celt]

You should only add the right amount of water to the mix--IE a per makers instructions ........ :9:

Yeah sure everyone stands over a bucket with the exact amount of water for a mix lol. Ive been plastering x amount of years and your suppose to use x amount of water for a mix but ive yet to see anyone measure it out. You mix untill you see the right consistency of the mix, same in the tiling world

 

[celt]

He did not put any adhesive on the tile edge before fixing the tile

What do you mean when you say this. Any tiler ive seen working has spread his adhesive on the floor, troweled it out then laid the tiles on.

 

[Concrete guy]

I used to use Aquapanel over screeds to make up large height discrepancies for fast track installation.

I once did a job where two rooms had been knocked into one and there was a 1" discrepancy in height between the slabs. I used two layers of 12.5mm aquapanel glued with rapidset flexi and was able to start tiling later the same day.

This will only work if the slabs are flat, cement board isn't a replacement for screeds or SLC but it can be used to solve problems on the odd job.

 

[beanz]

You should only add the right amount of water to the mix--IE a per makers instructions ........ :9:

I was taught that floor adhesive should be wetter than wall adhesive, and always mix by feel, rather than weight.

 

[Diamond Pool Finishers]

All adhesives should be mixed according to the manufactures specification ! usually in the mixing instructions on the bag if you add to much water you will make the adhesive weaker,also if there are any issues with the installation and the adhesive is tested then it would show -up and you would be at fault for not mixing correctly !! and liable for any replacement's .......

 

[widler]

Ive always found dave when mixing to instructions they can be a bit vague
Ie - some say someting like
' mix with 4/5 litres of water' or ' to a smooth creamy consistency'
Personally ive never measured water in my working life to mix owt, turn on tap , fill bucket, put powder in, mix with stick and poss lumps out ( im going back, arr the good old days with no wisk )
Same with grout, people go on about measuring out water cos you will get colour wrong ect ect ect , not once have i measured it .
Only time i gauge is when rendering, and not water

 

[beanz]

All adhesives should be mixed according to the manufactures specification ! usually in the mixing instructions on the bag if you add to much water you will make the adhesive weaker,also if there are any issues with the installation and the adhesive is tested then it would show -up and you would be at fault for not mixing correctly !! and liable for any replacement's .......

Im sure they'll always find a way out of being held responsible anyway lol!