Tiling over overfloor heating system - Wundafloor

[Shinyshiny054]

Oops, screwed up the quotation function by inadvertently deleting a close bracket. Here’s what I meant to ask

We have epoxy to fill the cracks and sink holes and will take up any particularly bad sections, but what’s the best infill for those? Can we epoxy? Will it bond ok?

 

[WetSaw]

You need to make sure the SLC is bonded to the substrate before you do anything else.

 

[Dumbo]

Your floor looks like it is failing. I'm not on site so can't be sure but I think if you tile this you will be throwing good money after bad . There are issues why your floor has done this .

 

[Shinyshiny054]

So we have 4 tilers coming out to assess floor and quote. 2 so far: one is happy to tile over, the other will tile over with a decoupling membrane but both are certain the cracks are due to heating too soon. 2 down 2 tomorrow to go

 

[cicuuts]

Hi Gill, how did you get on with the various assessments? I'm about to go through the same process (having already bought the Wunda overfloor panels), so any advice would be much appreciated!

 

[Shinyshiny054]

Hi Gill, how did you get on with the various assessments? I'm about to go through the same process (having already bought the Wunda overfloor panels), so any advice would be much appreciated!

Three tilers: they were all fairly confident the cracks were only from heating too soon (wait two weeks min). Two tilers suggested decoupling mats, one didn’t. Said he had tiled over this system before and was happy with the flatness we had achieved from the level. Unfortunately the guy was also a total cowboy and the actual tiling job is rougher than a badgers bum, but that’s another story - literally, there’s a whole thread about it!

It’s been a little over two weeks since the job was completed and we switched on at the bare minimum last night. Will see how it goes and certainly plan to update findings here.

Good luck, it’s very stressful, I know!

 

[Nic B]

Three tilers: they were all fairly confident the cracks were only from heating too soon (wait two weeks min). Two tilers suggested decoupling mats, one didn’t. Said he had tiled over this system before and was happy with the flatness we had achieved from the level. Unfortunately the guy was also a total cowboy and the actual tiling job is rougher than a badgers bum, but that’s another story - literally, there’s a whole thread about it!

It’s been a little over two weeks since the job was completed and we switched on at the bare minimum last night. Will see how it goes and certainly plan to update findings here.

Good luck, it’s very stressful, I know!

Hi, Just been reading through this thread and was wondering how you got on?

I have bought a 50m2 kit from Wundafloor and will be laying it in the next few weeks, having spoken to Mapei and being assured that tiling directly onto the boards with Elastorapid has been tested by them and is fine.

Reading some of these threads is making me a nervous wreck, but I am curios to hear from someone who has installed the exact system to see how it worked out?

Also, what was the longest run for your tiles, did you have an expansion gap other than around the perimeter?

Cheers,

Nic

 

[Shinyshiny054]

Hi, Just been reading through this thread and was wondering how you got on?

I have bought a 50m2 kit from Wundafloor and will be laying it in the next few weeks, having spoken to Mapei and being assured that tiling directly onto the boards with Elastorapid has been tested by them and is fine.

Reading some of these threads is making me a nervous wreck, but I am curios to hear from someone who has installed the exact system to see how it worked out?

Also, what was the longest run for your tiles, did you have an expansion gap other than around the perimeter?

Cheers,

Nic

Hi Nic,

It’s absolutely fine so far, heats up the house really well. We had massive issues with a crap tiler and the screed we poured to level cracking but so far hasn’t transferred any issues to the tiles (although they look like they were laid by a 12 year old- again, another story).

We covered 8 meters with an expansion gap at around 5m where the floor changes from concrete slab to suspended floor in the extension.

Good luck, I was really worried about the whole thing too, it’s a lengthy process but well worth it.

Gill

 

[Wozzagee]

I appreciate this is a few years later I’m just wondering how things went and was a flexible screed used and did he put down a coupling membrane? I’m planning on using the wunda system but the mrs wants tiles so I’m just nervous as I only have a timber floor so I don’t like the sound of a screed over it all plus seeing cracks :O

 

[Seantwo]

Three tilers: they were all fairly confident the cracks were only from heating too soon (wait two weeks min). Two tilers suggested decoupling mats, one didn’t. Said he had tiled over this system before and was happy with the flatness we had achieved from the level. Unfortunately the guy was also a total cowboy and the actual tiling job is rougher than a badgers bum, but that’s another story - literally, there’s a whole thread about it!

It’s been a little over two weeks since the job was completed and we switched on at the bare minimum last night. Will see how it goes and certainly plan to update findings here.

Good luck, it’s very stressful, I know!

Hi Gill

How has this been performing since?