What's the best course of action for this wall?

theandroids · Mar 7, 2019

Good evening all. Removed some tiles in bathroom and damaged the wall. Plaster has come off, underneath I think its bonding plaster? Haven't a clue.
What would be the best repair method for the wall, also can I installHardiebacker without plastering the wall after the repair?

Will be installing mosaic tiles.

Any help is appreciated.

widler · Mar 7, 2019

If you are installing mosaics the wall needs to be perfect , knock off and reboard, I wouldn’t bother with hardie , its a pain imo and plasterboard is perfect, if its in a wet room , tank it

acaciaguy · Mar 7, 2019

Installing mosaics - put the effort into having a perfect surface to tile on. Will save you so much when tiling.

theandroids · Mar 7, 2019

widler said:
If you are installing mosaics the wall needs to be perfect , knock off and reboard, I wouldn’t bother with hardie , its a pain imo and plasterboard is perfect, if its in a wet room , tank it

not looking to knock back. Its too much work and the wall is where a window and toilet is.

Just want wall as flat as possible to put some type of backing board over.
Do you recommend multifinish over surface or another product?

theandroids · Mar 7, 2019

acaciaguy said:
Installing mosaics - put the effort into having a perfect surface to tile on. Will save you so much when tiling.

what product?

acaciaguy · Mar 7, 2019

Is the bonding sound? If you have a window and reboard are you happy with the extra wall thickness around window ?

Tile Fix Direct · Mar 7, 2019

The trouble with any plaster finish is that the surface flatness is unlikely to be good enough for mosaics. Another method is to dry line with Orbry board with supplemental Orbry Spanker mechanical fixings. Boards are waterproof so use waterproof tape on joint for wet room. Boards incorporate insulation so reduces risk of condensation (always include forced ventilation in bathroom) and mouldy grout.
https://www.tilefixdirect.com/pdf/Orbry-Spanker-Dowel-Fixing-Guide.pdf
Orbry Board - https://www.tilefixdirect.com/product/Orbry-Insulated-Backer-Board

theandroids · Mar 7, 2019

acaciaguy said:
Is the bonding sound? If you have a subdue and reboard are you happy with the extra wall thickness around window ?

As shown in the pictures its pretty much just parts that have come off and texture in some places so not smooth. Was thinking of filling damage then getting flat as possible, then 6mm backerboard. Just need to know what product to fill holes and over the bonding to get smooth as possible.

theandroids · Mar 7, 2019

Tile Fix Direct said:
The trouble with any plaster finish is that the surface flatness is unlikely to be good enough for mosaics. Another method is to dry line with Orbry board with supplemental Orbry Spanker mechanical fixings. Boards are waterproof so use waterproof tape on joint for wet room. Boards incorporate insulation so reduces risk of condensation (always include forced ventilation in bathroom) and mouldy grout.
https://www.tilefixdirect.com/pdf/Orbry-Spanker-Dowel-Fixing-Guide.pdf
Orbry Board - https://www.tilefixdirect.com/product/Orbry-Insulated-Backer-Board

Thanks already have some prowarm boards. Is yours better?

acaciaguy · Mar 7, 2019

To be clear you want to get wall to a decent finish before reboarding with plasterboard or a backer board?

If so don’t bother, reboard on what you have and get that plumb and level

acaciaguy · Mar 7, 2019

Fixing Orbry Boards to Solid Walls | Orbry - https://www.orbry.com/2015/03/fixing-orbry-boards-to-solid-walls/

theandroids · Mar 7, 2019

acaciaguy said:
To be clear you want to get wall to a decent finish before reboarding with plasterboard or a backer board?

If so don’t bother, reboard on what you have and get that plumb and level

Do i need to PVA the bonding before applying the board using adhesive?

acaciaguy · Mar 7, 2019

what adhesive are you using ? What boards are you using?

Waluigi · Mar 7, 2019

Hack it all off down to brick/block and Dot and Dab Plasterboard.

Messy but worth it when you consider you can achieve a perfectly Plumb wall and smooth surface to tile on to.

theandroids · Mar 7, 2019

Waluigi said:
Hack it all off down to brick/block and Dot and Dab Plasterboard.

Messy but worth it when you consider you can achieve a perfectly Plumb wall and smooth surface to tile on to.

Not an option for me. Also, the wall is not damaged enough to warrant all that work.

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Waluigi

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