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

[theandroids]

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]

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]

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

 

[theandroids]

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]

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

what product?

 

[acaciaguy]

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

 

[Tile Fix Direct]

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]

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]

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]

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]

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

 

[theandroids]

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]

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

 

[Waluigi]

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]

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.

 

[theandroids]

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

ProWarm 6mm boards. Adhesive is Keraflex Maxi S1

 

[acaciaguy]

Ask prowarm tech line what they think. Most tech support is very good

 

[Waluigi]

Insta Stik and plasterboard straight onto the wall then. Wet the wall down before applying.

 

[acaciaguy]

I agree with waluigi. I have done the same myself. I also put a few mechanical fixings in too. But if you want to use the prowarm ...

 

[theandroids]

Insta Stik and plasterboard straight onto the wall then. Wet the wall down before applying.

Thanks. Will look into this.

 

[theandroids]

I agree with waluigi. I have done the same myself. I also put a few mechanical fixings in too. But if you want to use the prowarm ...

What's wrong with prowarm?

 

[acaciaguy]

MR board. Tank etc.

 

[acaciaguy]

What's wrong with prowarm?

Sorry. There is nothing wrong with it. I didn’t mean to give that impression so sorry for that. What I meant was if you want to use prowarm ask them about what adhesive and what priming needs to be done they are best placed to advise you. I wouldn’t not use them.

 

[theandroids]

Sorry. There is nothing wrong with it. I didn’t mean to give that impression so sorry for that. What I meant was if you want to use prowarm ask them about what adhesive and what priming needs to be done they are best placed to advise you. I wouldn’t not use them.

Why wouldn't you use them?

 

[acaciaguy]

I would use them. If you have them and they advise you best how to install

 

[Boggs]

Had two walls like this on Monday, also was short on space due to architraves that could not be removed.

I primed walls with TM Prime Plus, then using my tiger trowel combed TM Ultimate over walls and stuck on 6mm Delta Board and made sure they were flat with a straight edge.

Next day screwed through them using 35mm washers and screws every 200mm, tanked one side as it was in a wet area.

Sorted.

 

[theandroids]

Had two walls like this on Monday, also was short on space due to architraves that could not be removed.

I primed walls with TM Prime Plus, then using my tiger trowel combed TM Ultimate over walls and stuck on 6mm Delta Board and made sure they were flat with a straight edge.

Next day screwed through them using 35mm washers and screws every 200mm, tanked one side as it was in a wet area.

Sorted.

Will be doing this after filling a few of the deeper gouges in the damaged bonding coat with Gyproc Easi-Fill.

 

[Waluigi]

Easi-Fill in deep gouges? Wrong product IMO. It’s a jointing compound and fine surface filler. It’ll take days to cure and once dry it’s poor for tile adhesive to stick to. Use thistle one coat instead.

 

[acaciaguy]

Are you saying you are going to fill and then board over?

 

[theandroids]

Easi-Fill in deep gouges? Wrong product IMO. It’s a jointing compound and fine surface filler. It’ll take days to cure and once dry it’s poor for tile adhesive to stick to. Use thistle one coat instead.

oh ok. Was going to use because it said for filling damaged walls.