Corner Bead

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Corner Bead

What is Corner Bead?

Corner Bead, A protective and finishing strip installed on exterior corners of drywall to provide reinforcement and clean edges

Description

Corner bead is a protective and finishing strip installed on exterior corners of drywall, plaster, or other wall surfaces to provide reinforcement, create clean finished edges, and protect corners from damage. These essential finishing components ensure professional appearance and durability at vulnerable corner locations while enabling efficient installation and consistent results in residential and commercial construction.

Purpose includes protecting corner edges, providing straight finished lines, reinforcing vulnerable areas, and enabling professional installation. Quality corner bead installation is essential for durable, attractive wall finishes.

Types include metal corner bead for durability, vinyl corner bead for easy installation, paper-faced bead for seamless finishing, and flexible bead for curved corners. Each type offers different installation characteristics and performance benefits.

FAQs

  • What type of corner bead is best?

    The best type depends on the application: metal offers durability, vinyl allows easier installation, and paper-faced beads provide a seamless finish.

  • How do you install corner bead?

    Corner bead is aligned on the corner, secured with fasteners or compound, and finished with joint compound to achieve a smooth surface.

  • Can corner bead be painted?

    Yes, once properly finished with joint compound, corner bead can be primed and painted like the surrounding wall.

  • What causes corner bead to show through paint?

    Visible bead is usually caused by insufficient joint compound coverage or poor finishing technique.

  • Can damaged corner bead be repaired?

    Minor damage can often be repaired with joint compound, while severe damage may require full replacement of the bead.

  • Do all corners need corner bead?

    Exterior corners typically require corner bead for protection, while interior corners are finished with tape and compound instead.

  • How do you cut corner bead?

    Metal corner bead is cut with tin snips, vinyl with a utility knife, and clean cuts ensure proper fit and finish.

Fun Fact

Fun Fact: Corner bead was invented in the 1940s to solve the problem of damaged drywall corners, revolutionizing wall finishing by providing durable, professional-looking corner protection.

CSI Code

09 29 00

NAHB Code

920