Repairing Plaster Before Tiling Walls

You could plasterboard over the top but you d make the room and window opening smaller.

Repairing plaster before tiling walls.

Whats the best way to diy fix this wall before tiling. New plaster work should be fully dried before tiling work is commenced this drying time varies upon temperatures but can take up to 4 weeks before fully cured. The screw pulls the lath against the plaster s back side while the washer gives the screwhead a wide clamping surface. Once the joint compound is dry usually 24 hours sand the rough spots using drywall sanding sponge or drywall sanding paper.

Allow the area to thoroughly dry before beginning tile installation. Just give the area a clean down to remove any dust etc then spread an even layer of tile adhesive over the damaged area with a trowel. When using a cement adhesive on your tiling projects you have to be careful when tiling direct onto neat plaster. Slip a 2 inch plastic washer over a 1 5 8 inch drywall screw and drive it into the lath through one of the adhesive filled holes.

Sand with a medium grit sandpaper to create a uniform surface that s not too smooth. Apply the plaster mix to the damaged area apply the mixture with the 10 wallboard knife and spread a 1 4 inch layer over the hole. Allow time for the joint compound spackle to dry in accordance with the instructions found on the packaging. Leave it to dry overnight if you want then tile away.

Don t use paint glue pva wall paper paste only use the primer recommended by the adhesive manufacturer of your chosen tile adhesive. If needed apply drywall plaster tape to the wall to fill in larger bumpy areas. Cross scratch the first coat as it begins to set to allow the second coat to adhere well. A second coat may be required of compound.

You want the tile adhesive to have something to grab onto. Thoroughly vacuum the area and give the wall a once over with a damp sponge or cleaning cloth. Adhesive grout and tile 20kg max weight onto plaster. Gypsum plaster based products and cement products do not get on with each other and can cause.

Plant washers about 8 to 12 inches apart on both sides of the crack. Also now it s been plastered you will be restricting yourself to a tile with a max weight of about 16 kg m2.