When working on any tile project one of the key things that need to be considered is whether the wall can take the weight of your chosen tiles.
Tile weight plastered wall.
0 80 mm steel sheet.
It is important to check the weight of your tiles as plaster skim has a 20kg per square meter weight ratio therefore your tiles and adhesive should not exceed these weight otherwise failure could occur due to the skim de bonding from the wall cement adhesive will usually weigh about 4kg per meter squared plus the tile weight.
You should not tile over wallpaper glossy surfaces lead paint or plywood.
You may tile over existing tile painted or unpainted drywall plaster and textured walls.
Walls with this well adhered and dry plaster can support a maximum weight of 20kg m.
Gypsum plaster walls are good quality.
Tiling onto gypsum plasterboard direct.
However tiling over tile can add quite a bit of thickness so make sure your wall can handle the weight.
At the lowest point of the wall to which tiles are being fixed such as the skirting board work surface etc.
This is equivalent to ceramic tiles with a maximum thickness of 8mm plus.
How to tile over painted drywall.
If you want to update your kitchen or bathroom walls with tiles you don t have to remove existing painted.
The maximum weight of tiles that can be supported by a dry and well adhered plaster background is approximately 20kg per m.
Some preparation and a certain style of installation makes the process easier and more successful.
As a result this wall could support ceramic tiles that are around 8mm in thickness or stone tiles that are 7 mm in thickness.
If you re not sure if you have lead paint test kits are available.
If so you will need to paint the wall with pva glue tip some ova into a bucket and thin it down a little with water so you have a creamyish texture then paint onto the area you wish to tile and allow to dry it should be dry enough to start tiling after half hour so start tiling fro the bottom and work up true ova seals the plaster and will give you a surface for the.
This surface provides the right base for laying ceramic porcelain or other types of tile.
Tiles are ideal for showers bathtubs and backsplashes.
Plaster walls became popular due to the durability and strength of the surface and are more common in historic homes that drywall.
The maximum weight of tiling which plasterboard is able to support is 32kg m generally equivalent to a ceramic tile with a maximum thickness of 12 5mm or natural stone with a maximum thickness of 10mm.