Levelling walls for large format porcelain

[space refurbs]

I'm planning to lay 60cmx60cm porcelain tiles onto stud and plasterboard walls. Some areas are perfect but in others the wall is way out with a trough of up to 10mm from plumb.

What is the recommended technique - I was thinking of running a 96" darby vertically along the wall and then running it horizontally. Will this do it or is there a better way?

Also, what product should I use - is there a recommended filler or should I just use the tile adhesive to build up the low spots?

Thanks.

 

[grumpygrouter]

Skim it up in layers with rapid set adhesive. For your final skim, I usually use a plasterers feather to get it flat. They are big Porc tiles for a wall, have you checked the weight of them and I assume the plasterboard is not skimmed or painted?

You will need to get a pretty flat surface also and use at least a 10mm notch trowel. Thick Bed/ Solid Bed trowel may be even better.

 

[space refurbs]

Skim it up in layers with rapid set adhesive. For your final skim, I usually use a plasterers feather to get it flat. They are big Porc tiles for a wall, have you checked the weight of them and I assume the plasterboard is not skimmed or painted?

You will need to get a pretty flat surface also and use at least a 10mm notch trowel. Thick Bed/ Solid Bed trowel may be even better.

Thanks, The plasterboard is uncoated so should take 32kg per msq. The tiles are 18kg per sqm.

 

[grumpygrouter]

Thanks, The plasterboard is uncoated so should take 32kg per msq. The tiles are 18kg per sqm.

.....

 

[Lucas 2]

Hi Dave, was told that 1-coat bonding O.K for filling holes and levelling out walls. Any
advantage to using rapid-set adhesive ?

Cheers

 

[grumpygrouter]

Yes one coat is ok for that but bear in mind it is still plaster and would effectively reduce you weight capability of the substrate. Rapid set is a bit stronger in this respect and you should be able to layer up quite quickly. One coat can take a bit of time to dry in my experience. it depends really how much of the plasterboard you need to be filling out.

 

[White Room]

As grumpy says rapid set would be better just prime the boards before applying any adhesive