How to Render a Wall

Rendering a wall is the act of applying a layer of material such as mud or earthen plaster, lime plaster, plaster, cement or latex to a brick, straw bale or masonry wall to render it smooth. The wall may then be painted if desired. Rendering makes the finished product look aesthetically pleasing. As an option, colors may be added to the rendering materials to blend in with the home's surroundings.

Difficulty: Moderately Challenging

Instructions

Things You'll Need:

• Wire brush
• Shovel
• Wheelbarrow
• Trowel
• Straightedge
• Spray bottle

1. Use the wire brush on the wall to be rendered, brushing away loose chips of old masonry, paint, dirt, oil or grease and lichen buildup. This step must be done to ensure the render adheres to the wall.

2. Spray the surface of the wall to be rendered with a light spray of water to ensure the render adheres properly.

3. Mix the rendering material in a wheelbarrow with a shovel, adding enough water to make a paste-like consistency that will stick adequately to the wall.

4. Use the trowel to apply and float (make smooth) the rendering material, giving the illusion of one smooth coat with no apparent joins or seams. Use a straightedge as a guide to make sharp, clean corners.

5. Spray the rendered wall down with a light spray of water to keep the rendering material from drying out too fast and cracking. Allow the rendered wall to dry thoroughly before painting.

Tips & Warnings

• Outdoor rendering must be undertaken in warm, dry weather.
• Ensure adequate ventilation when rendering inside walls.

Resources

• Cob plastering
• Rendering tools