my understanding of dot and dabbing

[spenny]

having seen a few posts coming up recently about dot and dabbing. Can i clarify a few things?
1) that dot and dabbing is not laying tiles onto a trowelled bed of adhesive, but infact 'blobbing' on ady on the 4 corners of the tile and a blob in the centre?? I was also told that its a bit of a short cut that SOME tilers take too often.

When and where is it ever ok to dot and dab?

spenny

[wetdec]

Hi

You are right there are loads of posts on dot and dab. This system is not condoned by the profession nor the adhesive manufscturers.

Hope this clears up any doubt.

Cheers

tiler

..

[andersontiling]

laying slabs on a patio...tiling surely not

[cornish_crofter]

Dot and dabbing is used in the construction industry. Dry liners use it to fix plasterboard to solid walls.

It's a kind of short cut to using battens. It's not a technique I use as I prefer a systematic approach to ensure that the plasterbaord is properly fixed.

As far as dot and dabbing tiles is concerned. The experts will hopefully confirm that tiles need to have a minimum of 50% contact with adhesive in dry areas, and full contact in wet areas. Hence dot and dabbing is out.

[monty]

When tiling dot & dabbing is a NO NO......

Floors, Walls in exterior or interior wet areas you need 100% coverage. (correct me if I'm wrong)

Wall tiles in interior dry areas - you should have 70% coverage.

If the tiles are very large or have large studs or ribs on the back it may be necessary to back-butter the tile as well as spreading the adhesive on the substrate.

[GazTech]

I visit failures as part of my job with Bal.
This spot fix onto shuttering ply, cost the victim £1800 tiles £500 materials £700 labour. Total cost £3000

[whitebeam]

Thats staggering Gaz, £3000 down the pan

[deanotile]

I visit failures as part of my job with Bal.
This spot fix onto shuttering ply, cost the victim £1800 tiles £500 materials £700 labour. Total cost £3000

What you doin on my job gaz

[GazTech]

Thats staggering Gaz, £3000 down the pan

Sure was....the lady was in tears as I told her what the problem was, kitchen,dining room,utility room and coservatory floors, hopefully the tiles glazed porcelain could be taken up, adhesive ground off the back and re-used.

[deanotile]

The tiler should be footing the bill, as it is an incorrect installation is it not?

[GazTech]

The tiler should be footing the bill, as it is an incorrect installation is it not?

She only ever had a mobile number for him.....do you think she would ever see him again ?

[deanotile]

She only ever had a mobile number for him.....do you think she would ever see him again ?

He may be registered at company house or if not call the mobile and pose as a customer when he comes to quote the job you have him.

[Dave]

He may be registered at company house or if not call the mobile and pose as a customer when he comes to quote the job you have him.

So you will answer the phone deano if she rings the number.....you need to go back and sort that job out...

[deanotile]

So you will answer the phone deano if she rings the number.....you need to go back and sort that job out...

Ha ye wel mmm im not in

[Grace'sDad]

Gaz - looks like Zamora to me. Is it?

[GazTech]

Gaz - looks like Zamora to me. Is it?

Yes Mark, wel spotted ( if you pardon the pun ) Zamora Brown 30x30 & 30x60 set random design throughout...