Tiling outdoors when it’s wet

[spooner68]

Morning all. I have an outside tiling job coming up (800x400x10mm porcelain) on a concrete slab. The builder has built it with a decent drop and it’s pretty flat. The issue is the weather. I have been told that the base needs to be completely dry before I start as any moisture in the concrete will be locked in and when we get a cold spell it will freeze and the tiles will almost certainly lift.
Given the weather this year I’m struggling to see how I can get this done. Any advice on methods or materials would be gratefully received.

 

[Dumbo]

You should really put something like ditra drain 8 under the tiles . This is good practice and should prevent frost lift .

 

[Tile Fix Direct]

An alternative is Kerakoll Green Pro with Aquastop membrane. Prevents water reaching the slab, prevents secondary efflorescence coming up from the concrete and is part of their Kerakoll System.

Kerakoll Green Pro Decoupling Matting - per linear metre

Shop Kerakoll Green Pro Decoupling Matting from Tile Fix Direct. Find Orbry products in our huge range of Wet Room Supplies. Free delivery on orders over £375ex

www.tilefixdirect.com

If you need any more info contact Karl at Kerakoll on 07799 70‬3378

 

[hmtiling]

An alternative is Kerakoll Green Pro with Aquastop membrane. Prevents water reaching the slab, prevents secondary efflorescence coming up from the concrete and is part of their Kerakoll System.

Kerakoll Green Pro Decoupling Matting - per linear metre

Shop Kerakoll Green Pro Decoupling Matting from Tile Fix Direct. Find Orbry products in our huge range of Wet Room Supplies. Free delivery on orders over £375ex

www.tilefixdirect.com

If you need any more info contact Karl at Kerakoll on 07799 70‬3378

I wouldn't compare the 2 personally. The green pro should be compared to durabase and ditra. Ditra drain offers sub tile drainage which virtually eliminates freeze thaw and efflorescence risk

 

[Tile Fix Direct]

I wouldn't compare the 2 personally. The green pro should be compared to durabase and ditra. Ditra drain offers sub tile drainage which virtually eliminates freeze thaw and efflorescence risk

Kerakoll argue that their Green Pro is a waterproof system so if applied correctly no water will enter the subase, and residual moisture in the screed is able to evaporate due to incorporation of a breathable sheet.

 

[Dumbo]

Yes but drain 8 gets rid of any water between tiles and membrane

 

[hmtiling]

Kerakoll argue that their Green Pro is a waterproof system so if applied correctly no water will enter the subase, and residual moisture in the screed is able to evaporate due to incorporation of a breathable sheet.

So the same as ditra and durabase when taped then and not comparable to ditra drain?

 

[Tile Fix Direct]

So the same as ditra and durabase when taped then and not comparable to ditra drain?

Probably, but Ditra do not want to promote Ditra 25 externally. I believe Dural do though.

 

[hmtiling]

Probably, but Ditra do not want to promote Ditra 25 externally. I believe Dural do though.

Probably?
You're right about ditra that's why I suggested ditra drain.

 

[hmtiling]

Probably?
You're right about ditra that's why I suggested ditra drain.

Don't you sell all these products?

 

[Tile Fix Direct]

We sell Ditra and Dural, but do not stock the Ditra drainage products. I was noting the Kerakoll Green Pro as this is part of a promoted patio system and is a lot more cost effective than a lot of the drainage rolls available,

 

[Dumbo]

We sell Ditra and Dural, but do not stock the Ditra drainage products. I was noting the Kerakoll Green Pro as this is part of a promoted patio system and is a lot more cost effective than a lot of the drainage rolls available,

But it cannot compete with a drainage roll for ext applications in our climate .

 

[spooner68]

Looks like the best option is Ditra8 drain for wildest Northumberland then? It still needs to be dry before priming and throughout fitting though?