Discuss Outdoor Tiling | Tiling outdoors in the UK Tiling Forum area at TilersForums.com.

Kyle Knowles

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I gave a step to tile it's 6ft x 6ft with to steps up to the main platform it's brick build then backfilled with concrete would it be acceptable to use something like kerdi membrane to cover the whole thing or even the old homelux wetroom fabric or sold I just go ditra drain or similar? ? The area has plenty of fall so I'm not sorted about the water standing for to long also would it be advised to dig a gully round the stop and fit a grate/economic drain to stop the structure being saturated from ground level ?
Sorry if that's not clear I'm cooking tea feeding a 6 month old and entertaining a 4 year old lol
 
J

John2

Hi,

We are building a garden wall using class B engineering brick and looking to tile directly to the brick wall for the finishing. Prefer tile than stone or plastering for ease of maintenance.

Can you suggest the best adhesive to use and if there are any surface preparations required to ensure the tiling (using porcelain tile) will last (without falling off at some point!!).

Thanks for the advice.
 
T

Tile Shop

It depends on how flat and level it is. You may need to render first if the wall is out of line (get a 2m straight edge and if you can see any gaps or humps larger than 3mm).

If it is flat enough, check the porosity of the brick. Class B's tend to be quite dense so there may not be any need for priming, but if you put some water on and it soaks relatively quickly, a diluted (1:1) acrylic primer (like BAL APD or Ardex P51) will be enough. Leave to dry and tile with an S1 flexible adhesive (the one you go for will depend on the type of tile you use).

Other things to consider:

1. If you are tiling above 3m high, you will need mechanical fixings. (hooks screwed into the wall that the tiles hang off, used as an addition to tile adhesive, not instead of.)

2. Don't be scared of using natural stone such as slate or limestone. [in my own personal opinion] It will look better than a porcelain imitation. Once installed and sealed correctly, they will need very little in the way of ongoing maintenance, apart from checking the sealer every 12 months and applying a further coat if required.

3. Vertical and horizontal movement joints will be needed every 3-4 metres but its recommended to reduce this to every 2m if using a dark stone or tile that will be in direct sunlight as it will attract extra heat, thus causing additional expansion (if this is the case, its also advisable to adjust your adhesive to an S2 flexible).

4. If it is a retaining wall, some form of moisture block or damp proof will be needed on the back if there is not one already present in the structure. This will be to prevent sulphates in the soil being carried through by water or rainfall, to the adhesive. If it does get through, it will slowly start to break the adhesive down, gradually reducing the bond strength, until *pop*, it gives up completely.

But other than that, should be fine :)
 
O

Old Mod

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J

John2

Thanks Paul.

Very helpful. The wall is pretty level (30-60 cm height x 2-3 m long).

We are using porcelain tile (10mm) what brand of s1/2 adhesive would you recommend?

Unfortunately we have not put in a damp proof on the back of the brick which has been filled with soil! The brick's water absorption level is less than 7%. Would this still be problematic for sulphates?
 
T

Tile Shop

Thanks Paul.

Very helpful. The wall is pretty level (30-60 cm height x 2-3 m long).

We are using porcelain tile (10mm) what brand of s1/2 adhesive would you recommend?

Unfortunately we have not put in a damp proof on the back of the brick which has been filled with soil! The brick's water absorption level is less than 7%. Would this still be problematic for sulphates?

The 3 most popular choices of adhesives among tilers on here are Mapei, Weber and Tilemaster. With porcelain, you will be fine using a slow setting adhesive so something like Keraflex S1, Weberset SPF or TM Standard Setaflex (rapid setting versions of each are available)

Now, about your sulphates...... yes they could be a problem. Unless you are prepared to dig the soil out, wash and dry out the wall and put some form of tanking, there are no guarantees. Without it, you'll be lucky if you get 2 successful years out of your adhesive. Maybe 3 if you add some extra polymer to the mix.

There are some DPM's but neither Ardex or Mapei are able to offer a confident answer to whether they work for a wall situation, so at your own risk if you want to attempt it.

Now, although its not designed for this, but I can see no reason why this would not work, my "idea" is to use Marmox 6mm Multiboard (suitable for external use), screwed to the wall at 150 to 200mm intervals using their fixings and washers, tape the joints with the Marmox waterproof tape, tape over the washers too and that has a 90% chance of surviving beyond the 2 years as it will repel moisture from both directions.

At that short height all this probably sounds overkill, but its the only way I can see it having half a chance.
 
S

space refurbs

Hi all, got a job in London W14 for an experienced Victorian Tiler.

The finish will be black and white.

The existing steps on the main pathway are solid with no cracks.

The area is approx 1.5m x 4m

There are also 9 stairs that adjoin the main pathway but go down to a basement flat. These will need some repairs and then need to be tiled also (same tiles).
Please include all materials (including tiles) and labour and price each area separately ( as different clients need to approve costs).

IMG_3502.jpg IMG_3501.jpg
 

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Kyle Knowles

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Outdoor Tiling | Tiling outdoors
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Which tile adhesive brand did you use most this year?

  • Palace

    Votes: 5 4.6%
  • Kerakoll

    Votes: 8 7.3%
  • Ardex

    Votes: 6 5.5%
  • Mapei

    Votes: 30 27.5%
  • Ultra Tile

    Votes: 14 12.8%
  • BAL

    Votes: 28 25.7%
  • Wedi

    Votes: 3 2.8%
  • Benfer

    Votes: 2 1.8%
  • Tilemaster

    Votes: 19 17.4%
  • Weber

    Votes: 18 16.5%
  • Other (any other brand not listed)

    Votes: 13 11.9%
  • Nicobond

    Votes: 5 4.6%
  • Norcros

    Votes: 3 2.8%
  • Kelmore

    Votes: 1 0.9%

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