Patching Concrete Rendered Wall

Ready mixed easy to apply.

Patching concrete rendered wall.

Allow this to dry for several hours. Filling cracks in render. Small patch repair of up to 0 5m will cost around 75. Hacking off old render raking out the joints cleaning down the wall and then applying a new 22mm cement lime sand render in two coats to a masonry wall will cost in the region of 68 m.

Render joint and patch has superior workability and it s texture will provide a seamless result when used for patching existing render. However for cracks wider than inch quick setting cement based fillers are advisable to use. Cracks that form in a concrete wall particularly a basement wall due to settlement frost heave or ground movement can be either structural or non structural. Apply a coat of sealer to the concrete rendered wall if the render is made of acrylic.

For cracks up to 1 2 inch wide in horizontal concrete surfaces concrete crack sealants and caulk based concrete fillers will be the best option. Dunlop render joint and patch is a two in one formulation suitable for jointing fibre cement sheet or blueboard prior to rendering as well as patching cracks and holes of existing render to a depth or width of up to 5mm. Excellent workability with a render texture finish. The methods discussed in this article can be used to repair minor non.

Ensure the mixture doesn t overlay the existing render but form a protruding nib of material 2 3mm in front of the line of the existing render. Remove the masking tape and any excess material and allow to dry. Using a sponge lightly rub the render to achieve the desired effect and to blend with the existing material. Avoid feathering out too thin.

Fill a cartridge with the mixture and load into a cartridge gun. Apply the render using the filling knife to the required depth max.