What is a top hat in construction?

In construction, a top hat is a type of metal section used for structural support in walls, ceilings, and cladding systems. It is named for its shape, which resembles a top hat, featuring a wide, flat top with two vertical flanges extending downward.

Key Features of a Top Hat Section:

• Material: Typically made from galvanized steel or aluminum for durability and corrosion resistance.
• Shape: Has a broad horizontal section (top flange) with two vertical legs (webs), providing excellent rigidity.
• Sizes: Available in different widths and thicknesses to suit various load-bearing requirements.

Common Applications:

1. Cladding Support: Used in façade systems to support external panels like metal cladding, fiber cement sheets, or composite panels.
2. Roof and Ceiling Systems: Provides additional strength and stability in suspended ceilings and soffits.
3. Wall Framing: Used in non-load-bearing partition walls and exterior framing where extra rigidity is needed.
4. High-Wind Areas: Often used in cyclone-prone areas due to its superior wind load resistance compared to standard battens or furring channels.

Advantages of Using Top Hats:

✔ High strength-to-weight ratio
✔ Corrosion-resistant (when made from galvanized or coated steel)
✔ Provides uniform support for cladding and lining materials
✔ Easy to install with direct fixing to walls or ceilings