Hi guys. May I ask how to fix the brick wall. The brick wall in the bathroom will be tiled in the end. What product should I use to repair the holes on it?
Hi @etmomoabc,
In order to tile the bathroom, first waterproofing would need to be done. Instead of filling all these fairly substantial holes, it might be best to install Villaboard over the area. That will provide a suitable sheeted product for waterproofing and a flat and ready-to-tile area. It's also going to be less effort than trying to fill these holes and give you a better surface. Now that the plumbing has been done to suit the brick wall, you'd need to check whether adding the thickness of Villabord over it will mean issues with the plumbing depth of fixing attachment. I'd suggest having a word with your builder, tiler and waterproofer to determine the best approach. A concern I have is that the waterproofer/tiler will not want to proceed over a surface in this condition, as it really should be lined with Villaboard first.
Please let me know if you have any questions.
Mitchell
I can't increase the thickness. Installing Villaboard can cause problems with water
mixers
That's understandable, @etmomoabc, but the wall is in rough shape, and in hindsight, Villaboard should have been installed before the plumbing so it could have been set at the correct depth.
The areas requiring bulk filling will need to be done with a mortar, and then you could skim coat over them up to a 25mm thickness with Lanko 5kg 136 Rapid Patching Mortar. Due to the size and depth of some of the holes, you'll likely need to do this in several steps or create formwork to hold the mortar within the holes until it sets.
Hi
I'm renovating the bathroom. I'm looking for a fiber cement board for the Finish wall. Get rid of mold in tile grout gaps.
I'm not sure it works? Do I still need to apply a waterproof membrane? Can I paint on the waterproof membrane?
As mentioned above, Villaboard would be the correct cement sheeting for your walls. The cement sheeting is the base layer and then waterproofing must be completed for the whole bathroom. A brush is typically used to apply the membrane. Once the walls and floors are waterproofed, you can move onto tiling. I'd suggest you enlist the services of a professional for your sheet installation and waterproofing, as they are quite complicated tasks.
Hi can I use
For the finish wall. Just paint it. No tiles
Villaboard is the correct product for internal wet areas, whether it is being tiled over or painted. HardieTex is an exterior cladding. Is the painted board to be used around the bathroom or with the shower recess? Painted Villaboard is not a suitable surface within the shower recess area.
used in shower recess. I'm looking for some kind of waterproof board replacement for tiles.
You'd most likely be looking at something like these wet-area shower panels that can be used in place of tiles.
However, I want to do surface rendering. Patterns or colors. Wet-area shower panels may not be able to do surface rendering.
Hello @etmomoabc
If you were to render your wall with Rockcote 20kg Grey Quick Render, the thickness would vary from 6mm to 15mm depending on how bad the surface of your wall is. If you were to use James Hardie Villaboard the thinnest panel you could use would be 6mm.
Since you are worried about your water mixers, I suggest doing a quick experiment. Get a piece of cardboard or timber offcut that is 6mm thick. Place it right next to your water mixer and install the cover flange and handle. You might be surprised that the cover and handle will still fit with no issues.
The reason for this is that most shower mixers and tap spindles have room to adjust for these kinds of situations. Just keep in mind that anything you add to your wall will reduce the adjustment level of your mixers, so I suggest testing thicker materials if you want and you'll find out what the limit is for your shower mixers.
If you need further assistance, please let us know.
Eric
