Double J Control Joint XJ15 Galvanized Steel

Description

Double J Control Joint XJ15 Galvanized Steel
Take control of structural movement and thermal expansion with the Brand X Metals Double J Control Joint XJ15 . Manufactured to exacting standards from heavy-gauge galvanized steel, the XJ15 is purpose-engineered to prevent cracking, edge curling, and stress fracturing in large-surface exterior stucco and interior plaster assemblies.

Unlike generic control joints, Brand X Metals’ XJ15 features our signature rolled “Double J” profile. This unique contour creates a mechanical keying pocket that traps plaster beneath the edge, preventing separation during thermal cycling. Paired with wide expanded metal flanges and a factory-applied protective pull tape, the XJ15 delivers flawless stress relief and a razor-sharp architectural reveal every time.

Why Choose Brand X Metals Double J Control Joint XJ15?

• Engineered “J-Hook” Mechanical Lock: Brand X’s rolled J-flange traps plaster firmly along the joint edge, eliminating micro-cracking and stucco pulling away under load.

• Factory Protective Pull-Tape: Includes pre-applied channel tape to keep cement mix and finish coats out of the reveal. Simply peel off post-cure for clean line work.

• High-Key Expanded Flanges: Precision-expanded metal flanges maximize mortar penetration, ensuring full mechanical bonding to lath and substrate.

• Corrosion Resistance Built for Jobsite Demands: Formed from hot-dipped G60 galvanized steel (G90 option available) to withstand harsh ambient exposure during construction.

• Precision Brand X Fabrication: Crafted with straight edges and uniform ground depths to eliminate field alignment issues and save labor on large wall panels.

Technical Specifications

Code Compliance & Standards

• ASTM A653 / A924: Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process.

• ASTM C1063: Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster.

• ASTM C926: Standard Specification for Application of Portland Cement-Based Plaster.

• IBC / CBC Compliant: Meets all International Building Code and California Building Code requirements for lath & plaster accessories.

Recommended Applications

• Exterior Portland cement stucco (3-coat systems)

• Interior plaster wall and ceiling expansion panels

• Commercial facades and residential construction requiring stress control at high-load transitions (floors, soffits, window headers)

Double J Control Joint XJ15 Brand X Installation Note

Pro Tip: Secure the XJ15 to lath using approved tie-wire or fasteners per ASTM C1063 guidelines. Do not remove the yellow protective pull tape until the finish coat has completely set. Peeling the tape while mortar is damp can ruin edge crispness.

Frequently Asked Questions

Q: How does the Brand X XJ15 compare to a standard V-type control joint?

A: Standard “V” or “M” control joints only allow lateral movement, but stucco edges can pull back from the reveal. The Brand X XJ15 Double J profile “clips” the stucco in place, giving superior edge hold and preventing long-term cracking along the joint boundary.

Q: Can Brand X Metals fabricate the XJ15 in custom metal alloys?

A: Yes! While galvanized G60 is standard, Brand X Metals also manufactures the XJ15 in G90 Galvanized, Zinc (#ZJ15) for severe coastal environments, Stainless Steel, and Aluminum. Contact our sales team for custom alloy runs or custom grounds.

Q: Is the XJ15 compatible with EIFS and continuous insulation (CI) systems?

A: Yes. The XJ15 is widely used across standard lath/stucco assemblies as well as CI/EIFS systems requiring controlled movement gaps over substrate joints.