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Discuss Attaching brick slips to painted plasterboard and other questions in the Canada Tile Advice area at TilersForums.com.

Roshep

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Hi Tilers, this is my first question on this forum and I've got a few different areas to cover!
I am a DIYer, working on renovating a kitchen, utility room and cloakroom/shower room. My previous experience of tiling is using large format porcelain tiles onto cement/foam backer board, on floors and walls in a bathroom with shower enclosure.

A little about the tiles I am planning on using and the substrate I have to work with:

1. Full wall of brickslips onto kitchen wall with 2 doorways, wall is emulsion painted plasterboard, fixed to studs, attached to bricks (old exterior wall before extension was built)

2. Metro tiles or 15cm square tiles to cover lower half of utility room, wall is skimmed plasterboard (old, paint stripped off), some dot n dabbed, some stud.

3. large format porcelain tiles in shower enclosure, 3 walls of skimmed plasterboard with some rotting in lower 50cm. One wall is dot n dabbed and most of the skim has come off with tiles but otherwise in reasonable condition, one has a few screw holes and rot at base, one will be boxed out to conceal mains pipe, new surface added for tiles and new bar shower attached.

Here are my thoughts on how to approach each area, I would appreciate if someone could check I am on the right track.

1. Kitchen: Attach 6mm tile backerboard to whole wall, through to studs, using gripfill and screws with washers. Attach brickslips with flexible cement based tile adhesive, point with sand and cement. Will this take the weight? Floor is suspended timber if that matters? Do I need the backerboard?

2. Utility room: Seal the bare plaster with BAL primer and use ready mix adhesive, attach tiles, grout with flexible mapei Any benefit to using the ready mix? is this the right primer? Any problems using basic thin square tiles at floor level? can this be done before laying LVT flooring?

3. Shower: Batten out wall with pipe and add support for shower, Attach 10mm thermal tile backer board to battens (left over from UF heating instalation). On wall with missing skim, remove all remaining skim, patch if necessary. On wall with skim, screw holes and some rot, either cut out and replace with backer board or replace worst section and make good. Fit shower tray Unite and waterproof the 3 walls and tray using mapei tanking kit. Attach tiles using flexible cement adhesive and grout.

Can anyone see any glaring problems with these solutions? Trying to keep costs down as much as is sensible. Shower is almost never used so I dont want to over engineer it.

Thanks anyone who has read this far! I hope I have explained myself clearly enough, I really appreciate anyone's advice on this!
 

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