A broom finish is a type of textured surface applied to concrete to provide both traction and a decorative effect. After the concrete is poured and begins to set, a broom (typically a large, stiff-bristled brush) is dragged across the surface of the wet concrete in a straight line or in a pattern. This creates a rough texture that helps prevent slipping, making it ideal for outdoor surfaces like sidewalks, driveways, patios and pool decks, where safety and durability are important.
The broom finish also gives the concrete a more rustic or natural look, often resembling the texture of wood grain. It’s a relatively simple and cost-effective way to enhance the functionality and appearance of a concrete surface. The finish can vary depending on the type of broom used (e.g., soft or stiff bristles) and the amount of pressure applied.
Key Characteristics of a Broom Finish
- Texture: The surface has a slightly rough texture with visible, uniform ridges and grooves. This texture is ideal for providing traction to prevent slipping, especially in wet conditions.
- Slip Resistance: The primary benefit of a broom finish is its ability to enhance traction, making it a great choice for surfaces that may get wet, such as around pools, walkways, or driveways.
- Durability: A broom finish is durable and relatively low-maintenance, as it helps to resist wear and tear from foot traffic or vehicle movement.
- Aesthetic: While functional, a broom finish provides a simple, understated aesthetic. The pattern can vary depending on the size of the broom bristles and the technique used, but it generally gives a uniform, clean look.
How to Achieve a Broom Finish
- Pour Concrete: The concrete is mixed, poured, and spread evenly across the area.
- Smooth the Surface: Before the brooming process, the concrete surface is smoothed out with a float or trowel.
- Wait for the Right Timing: The surface must be allowed to set for a short period, becoming firm enough to hold the broom texture but still moist.
- Brooming: Using a broom with stiff bristles (usually a push broom), the worker drags the broom across the surface, creating uniform lines. The direction of the broom strokes can be varied for different visual effects.
- Curing and Sealing: After brooming, the concrete must be properly cured (kept moist) for optimal strength and longevity. Some people may apply a sealer afterward to protect the finish and enhance its appearance.
Types of Broom Finishes
- Light Broom Finish: A light brushing that creates subtle texture, often used for decorative or aesthetic purposes.
- Heavy Broom Finish: A more pronounced texture, suitable for areas that require greater traction.
- Cross Broom Finish: A technique where the broom is brushed in multiple directions (cross-hatching) to create a more intricate pattern.
Applications
A broom finish is a cost-effective, functional, and durable solution that helps improve both the safety and longevity of concrete surfaces.