Ditra on chipboard

[Ian]

I'm having a total blank here and the schluter website isn't very conclusive. Can ditra be fixed directly to 22mm deflection free chipboard?

 

[CJ]

Can't see why not.

 

[Ian]

Can't see why not.

That's what I thought, I know it can be fixed directly to ply so, surely it the same thing.

 

[John Benton]

I have done it once in an en-suite 3m x 0.8m, there was no deflection and that was about 5 years ago. Since been back to do more work at house and checked if there were any cracks etc. Solid as a rock.

Used same procedure, prime, 6mm notched and tile

 

[andy8758]

Bri - you clearly are a conscientious guy - so why not call this number and ask? + 44 (0) 1530 813396. Course they probably all at home watching Sports Personality of the Year, but might be worth a try tomorrow.

 

[Andy Tiler]

I'm having a total blank here and the schluter website isn't very conclusive. Can ditra be fixed directly to 22mm deflection free chipboard?

Yes Brian,but not the green chipboard!!!!

 

[area tiling]

Often wondered this to bri , if it could surely it would save time and money! What's your biggest fears of this method ?

 

[Ian]

Often wondered this to bri , if it could surely it would save time and money! What's your biggest fears of this method ?

The fleece not bonding to the substrate. I wondered if maybe a contact adhesive was a better way of adhering it. I'm going to get schluters opinion on the matter and see what they say.

 

[Andy Tiler]

The fleece not bonding to the substrate. I wondered if maybe a contact adhesive was a better way of adhering it. I'm going to get schluters opinion on the matter and see what they say.

If it's green chipboard bri they won't recommend anything mate! It's got to be a cement based board for me glued and screwed..!

 

[Ian]

If it's green chipboard bri they won't recommend anything mate! It's got to be a cement based board for me glued and screwed..!

I'll have to ask the developer the question, there's getting on for 60m2 so it'll bump the price up a treat adding HB to it. I'm not overly keen on the idea of fixing ditra to a wooden substrate anyway, it's not my idea of a proper job.

 

[John Benton]

I'll have to ask the developer the question, there's getting on for 60m2 so it'll bump the price up a treat adding HB to it. I'm not overly keen on the idea of fixing ditra to a wooden substrate anyway, it's not my idea of a proper job.

If it was me personally 60m is too much of a risk, I would recommend 6mm board fixed in the normal manner.

like I said in my previous post mine was only 3m and there was no deflection. If its new build Bri you could be asking for trouble.

 

[Ian]

If it was me personally 60m is too much of a risk, I would recommend 6mm board fixed in the normal manner.

like I said in my previous post mine was only 3m and there was no deflection. If its new build Bri you could be asking for trouble.

I know mate, I've always tried to spec jobs to the highest standard and as yet, have never had a failure that I know of. Unless I'm 100% happy, I'd rather not do it than get a 5k repair bill.

 

[On one]

Yes Brian,but not the green chipboard!!!!

Hi Andy,I wouldn't necessarily focus on green coloured chipboard being the problem as Egger removed the green dye/pigment from their P5 boards a few years ago.

 

[andyq]

Hi Bri, I had a floor to tile a few weeks ago, substrate was chipboard, deflection free, I spoke to schluter tech and they said to use ardex af200 to fix the ditra down, got it from CTD, 5 litres covered about 5m square

from schluter "As long as the substrate is capable of taking the weight of the tiled surface, Schlüter-DITRA can be applied directly to any existing timber -- including plywood and chipboard.

http://www.ardex.co.uk/Portals/0/productdocs/e00ea7d2-287f-4376-8b33-df6c25e99aa6.pdf

 

[Ian]

It's a good price at ctd as well. Many thanks to all who have helped with my query.