What Do You Need To Render A Wall? - A Guide To Basic Rendering
The best render jobs require you to be prepared and equipped with the right tools, items and techniques. The ultimate goal for any wall rendering project is to get the best finish possible for whatever purpose.
Are you looking for the best tools, materials and equipment for wall rendering? Here are the essential tools any installation job would need for your DIY or professional wall rendering projects.
We've also included a simple procedure you can follow to complete your project.
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Guide to rendering - the basics
Doing rendering yourself can be challenging when you don't know how or don’t have the suitable materials to do so.
Materials you may need:
- Plaster (Gypsum)
- General-purpose cement (grey)
- General-purpose cement (cream)
- Bricks or blocks
Tools you may need:
- Mixing shovel
- Straight edge
- Steel Float / Plastering trowel
- Wheelbarrow for smaller projects
- Cement mixer for larger projects
- Timber for battens (we recommended 10mm thick)
- Rendering materials (as above)
Plaster is what you call coating a surface with any type of cement render or plaster finish, whether for an internal or external wall. Plaster and render are usually used as protection for buildings and walls. Many also use the malleability of these materials to create decorative patterns, such as brick finishes.
External plaster protects the building walls from the external environment such as rain, wind, or sunshine. They also provide thermal protection and sound insulation for interior areas. Various types of cement are waterproof, have improved fire ratings and can be made to match your design idea. They come in multiple colours and textures.
Steps to render a wall
Here are some helpful steps to successfully render a wall.
Step 1: Survey the site
A building should look in sync with the environment it is in. For best results, select the plaster that suits the background and environment of the surface. This could mean finding the correct thickness and the appropriate number of coatings.
Also, be sure to pay attention to the curing stage to avoid any damages in the future.
Step 2: Prep the surface for rendering
After you’ve decided on the materials and the type of render you’ll be using, it’s time to prep the surface of your wall.
Clear the area of dirt, dust, oil, grease, paint, silicone and any friable materials. If you are working with a dense surface with low absorption, such as concrete or metal windows, invest in a dash coat or a potent concoction of cement and water. This is necessary, so the plaster has something to hold onto - strengthening its grip.
Surfaces such as sandstone, which are highly absorbent, require soaking down to avoid water loss.
Step 3: Mix your render
Take out the type of finish you want for your render and mix to the appropriate ratio based on your provider’s instructions.
You can either mix by eye or better yet, use specific quantities for accuracy. Make the mixture enough to be used up in 30 minutes to maintain its quality. Once the mixture gets oxidised, the consistency might change.
Be sure to mix your renders on a hard, flat surface to avoid complications.
Step 4: Apply the render
Using a steel float (plasterers trowel), apply the first later to your chosen surface. Once you have reached the desired thickness, grab a straight edge to smooth everything.
If you are applying multiple layers, wait for 3 to 7 days before applying the next coat.
Step 5: Finishing the render
The decorative finishes come last, but not the least in the process.
Depending on the chosen finish, specific tools and materials will be needed.