Metal Corner Bead for Stucco Wall System

A metal corner bead for stucco wall systems is a critical component used to reinforce and define clean, durable edges at external corners during stucco application. It ensures straight lines, resists cracking, and provides impact protection for long-term performance in both residential and commercial buildings.

Key Features

1. Galvanized Steel Construction

   • Resists corrosion and holds up well against outdoor weather conditions and stucco moisture.

2. Perforated Flanges

   • Designed with holes or expanded mesh to allow stucco to key in (embed), improving bond strength and surface continuity.

3. Sharp, Defined Corner Angle

   • Helps achieve perfectly straight 90° or rounded corners, improving visual quality and structural precision.

4. High Impact Resistance

   • Strengthens vulnerable exterior corners and prevents chipping or cracking over time.

5. UV and Weather Resistant

   • Suitable for exposed locations where UV, wind, and rain may affect building materials.

 Applications

• Exterior stucco wall corners (residential or commercial)

• EIFS systems (Exterior Insulation and Finish Systems)

• Concrete or cement render walls

• Window and door edge detailing

• High-traffic or impact-prone external corners

Common Types Used in Stucco

• Expanded metal corner bead – most common, good keying with stucco

• Wire-backed corner bead – includes metal mesh to reinforce thick plaster or stucco

• Bullnose corner bead – used for rounded finish instead of sharp 90° angles

• Arch or flexible corner bead – for curved stucco wall sections