Many people believe that they can install tiles directly onto the brick or concrete wall surface without adding a layer of rendering. This can prove to be very problematic down the line and here are some reasons why:

• Brick and Concrete Walls have Gaps – Brick and concrete walls are made from several blocks of materials. These blocks are held together by mortar and this mortar fills the gaps between two blocks. However, the mortar doesn’t form a tight seal to ensure the moisture from the bathroom doesn’t travel to the other rooms. A render will help seal the gaps and ensure no moisture escapes.


• Tiles don’t Provide A Seal – While tiles are impermeable, they don’t provide a complete seal against moisture. They also have gaps that are filled with porous grit that allow moisture to pass through. This isn’t a problem with a rendered wall because it provides a proper barrier and ensures the moisture that seeps through the grit doesn’t cause problems to the adjoining rooms.


• Level Surface – Bricks and concrete blocks don’t provide a flat and leveled surface, which can be a problem when you want to install tiles on top. A render will completely smooth over the edges and dimensions of individual blocks and provide a clean surface for the tile installation.


• Texture – In order for the tiles to stay in place, the base needs to have some texture. During the rendering process in Sydney, our experts will ensure the surface is scored and textured before the material dries and sets. This ensures your rendered bathroom Sydney walls provide the best surface.