This step represents the main preparation for the waterproofing and tiling. You need to make sure you can get you walls as level or plumb as possible otherwise it will become much more difficult at the waterproofing and tiling stage.
Re-Sheeting – For re-sheeting walls to timber frames you will require the following materials and tools:
- 6mm villaboard
- Tape measure
- 32mm timber screws – Used to install the sheets on to the timber frame
- base coat 15kg – used to create a seamless flush joint in between villaboard sheets
- Perforated paper tape – This is used to help reinforce the joints.
- Level/ straight edge – checking the level and straightness of the walls.
- Hand guillotine – Tool used to cut the villa board.
- Broad-knife – Used to apply the basecoat and topcoat on the joints.
- Stud Adhesive – Used to help strengthen the fixing of villaboard to the timber frame.
- Cordless drill.
After you have measured up the required amount of sheets for the walls and purchased the villaboard you will need to install them using the above materials and tools.
Easiest way to get started is to apply the stud adhesive on the timber frame. Once this is completed, start by laying a sheet up against the corner wall. Mark up on the sheet the timber frame positioning so you know where to screw in. Start by screwing all four corners then proceed with additional screwing onto the timber frame. Repeat until all sheets are up.
Once all sheets are up you will need to apply the tape on the joint. Ensure there is no voids under the tape and that the surface is clean. Immediately cover up the tape with a thin layer of base coat using the broad-knife. Also, apply base coat over all screw holes used previously. If tiling the walls, you won’t need to do any more top coats or base coat preparation. If walls are to be painted, you will need to apply another coat of top coat followed by a good sand.
A reasonable level of expertise is required for rendering as it is very difficult for a first timer. If you think you are up to the task you will require the following.
- Render Mix
You will need to get the render mix ready by following the instructions on the bag. Generally it is applying water until you get a nice thick mixture.
Start by cleaning of the brick wall and ensuring there is no dust residue from the demolition. Once your mix is ready, you will need to start by getting all your edges / perimeters correct. Apply the render all round and make sure they meet with the straight edge and levels. Once your edges are set, you are pretty much ready to go to fill in the enclosure. Repeat the process inside the border and use the borders as a gauge to get all the walls correct. You want to ensure you don’t dig in the borders. Rinse and repeat. Once complete, use the float in a circular motion to smoothen off all holes and to neaten up the finish.