Home / Wall & Facade Systems / Facade & Curtain Wall Accessories / Curtain Wall Clips / Wind Load Anchors

Curtain Wall Clips / Wind Load Anchors

Durable Curtain Wall Clips with Steel Reinforcement

Curtain wall systems, which are aluminum window frames used in commercial building construction, require anchors to securely attach the window frames (mullions) to the building’s structural frame. These elements are crucial for maintaining the stability and safety of the curtain wall system. To achieve this, glaziers often use custom-formed curtain wall clips, which are specifically designed to maintain the stability and safety of the curtain wall system.

Applications

Curtain wall clips and wind load anchors are used to securely connect aluminum curtain wall mullions to the building structure in commercial exterior envelope systems. They help transfer dead loads and resist lateral wind forces in both new construction and retrofit projects.

These components are suited to stick-built and unitized curtain wall systems, supporting installers working on high‑rise towers, mid‑rise commercial buildings, and other non-load-bearing glazed façades.

Exterior Cladding
Interior Feature Walls & Entries
Canopies
Signs & Corporate Identities
Column Covers

Finishes & Materials

Curtain wall clips and anchors can be fabricated from a range of metals to suit performance and environmental demands:

Aluminum for lightweight, corrosion-resistant applications.
Stainless steel for high-corrosion or coastal environments.
Galvanized steel for robust strength with added rust protection.
Carbon steel that can be primed or coated to help prevent galvanic corrosion when used with aluminum framing.

These options allow glazing contractors and engineers to match material selection to structural load, durability, and compatibility requirements across different projects.

Compatible Curtain Wall Anchor Systems

Our fabrication services cater to various curtain wall systems, ensuring seamless integration:

Stick-Built Curtain Walls Fabrication:

Suitable for custom designs requiring installation flexibility

Unitized Curtain Walls Fabrication:

Prefabricated units for quick installation, perfect for high-rise buildings.

Windload Anchor Info

lorem ipsum dolor sit amet consectetur adipiscing elit quas commodo quos tempor eiusmod minim irure voluptate aut placeat pariatur cumque occaecat labore sunt incididunt omnis et qui at ut proident dolorem facilis id facilis provident consequatur officia excepturi occaecat dolores reprehenderit dolor corrupti temporibus facilis illum reprehenderit aliquip molestias excepturi

Challenges Faced

Glazing contractors often face challenges when seeking reliable metal manufacturers for curtain wall wind load anchors and clips. Common issues include installation complexity, material compatibility, and thermal bridging.

Features and Benefits
Built for Better Performance

Structural Integrity & Safety
Designed to meet specific engineering criteria, clips and anchors distribute loads evenly from the curtain wall to the structure, helping the façade manage its own weight and resist wind loads safely over the long term.
Ease of Installation
Components are fabricated to be straightforward for installers to work with, reducing field cutting and adjustments. This simplifies installation, lowers labor time, and supports consistent quality on fast‑tracked schedules.
System Compatibility
Curtain wall clips and wind load anchors are compatible with both stick-built and unitized systems, supporting custom on‑site assembly as well as factory-built modules. This versatility makes them suitable for a wide range of building types and construction methods.
Extended Support with Reinforcement Accessories
Companion products such as mullion reinforcing plates and curtain wall steel reinforcement provide extra strength where needed (e.g., door mullions, high-wind zones, or tall spans), contributing to long-term performance and occupant safety.

Fabrication Expertise and Design

Fabrication Capabilities

Each clip and anchor is produced using detailed shop information supplied by glazing contractors, ensuring that geometry, hole patterns, and material selection align with engineered designs. This reduces coordination issues and helps clips perform as intended once installed.

Design

Curtain wall clips and wind anchors are precision-formed angle plates engineered to meet project-specific structural requirements and glazing details. Hole patterns, plate thickness, and geometry are tailored to match mullion profiles, embed locations, and engineer-specified connections.

Additional accessories such as mullion reinforcing plates and curtain wall steel reinforcements can be designed to integrate seamlessly with existing systems, adding stiffness and strength without compromising sightlines or aesthetics.

Mullion Reinforcing

Mullion plates provide additional support to door or window mullions, especially in high wind load areas.

Mullioned Windows

A timeless architectural feature found in both traditional and contemporary building style

Curtain Wall Steel Reinforcements

Essential for projects requiring extra structural support, particularly in tall buildings.

Additional Accessories: Mullion Reinforcing and Curtain Wall Steel Reinforcement

In addition to angle clips and wind load anchors, we fabricate a range of curtain wall accessories to enhance curtain wall systems:

Mullion Reinforcing: Mullion plates provide additional support to door or window mullions, especially in high wind load areas. Fabricated to meet detailed specifications.

Curtain Wall Steel Reinforcements: Essential for projects requiring extra structural support, particularly in tall buildings. Customized to integrate seamlessly with existing systems, providing necessary strength without compromising aesthetic appeal.

Mullioned windows are a timeless architectural feature found in both traditional and contemporary building styles. They enhance structural stability, improve energy efficiency, and add aesthetic appeal, among other benefits.

Exterior Building Envelope: The Non-Structural Approach

Modern commercial buildings often employ a non-load-bearing exterior system that shields the interior from environmental elements. The Curtain Wall system, while not supporting the building’s weight, must manage its own mass and resist lateral forces like wind. The components used to attach this system are sometimes referred to as angle clips/wind load anchors reflecting their dual purpose.

FAQ

Curtain wall clips create connection points between the curtain wall and building structure, but their material, geometry, and placement can affect heat transfer through the façade. IMARK can coordinate the clip design and material selection with the project’s thermal-break and building-envelope requirements.
Material compatibility should be reviewed when combining aluminum, stainless steel, galvanized steel, and carbon steel. The connection may require compatible finishes, isolation measures, protective coatings, or primers to reduce the risk of galvanic corrosion.
Yes. Existing clips, anchors, mullion reinforcements, or field measurements can be used to develop replacement or supplementary components for renovation and retrofit projects. Confirmed dimensions and connection details are required for accurate fabrication.
Project-specific samples or prototypes can help verify dimensions, hole patterns, material, finish, and installation compatibility before full production. Availability and requirements should be confirmed with the fabrication team.
Required tolerances should be established during the submittal process based on the curtain wall system, connection details, hole locations, and installation requirements. Ask IMARK to confirm the achievable tolerances for the specific component and material.
Ask whether components can be labelled, bundled, and packaged by elevation, gridline, sequence, or curtain wall unit. Organized identification can simplify installation, especially on large unitized or high-rise projects.

Interested? Let’s Talk.

Contact our construction department to arrange a consultation or submit a form and a representative will contact you.

Related Projects

675 Almanor Peery Park

A new development in Sunnyvale’s major industrial area know as Peery Park. The project, 675 Almanor, required the demolition of an existing 60,000 sq ft building that was built in 1986.

Corporate Office for Jen-Col Construction

Built for Jen-Col Construction Ltd and designed by ONPA Architects, IMARK was asked to help in the exterior design prior to the architects finalizing the drawings.

Edmonton Federal Building

Known in Alberta for its politically charged renovation, the Edmonton Federal Building redevelopment aims to delight workers and tourists with its innovative design and amenities.

Modern Infill Residence

The Owner of the residence designed and contracted the home himself, creating an architecturally unique and sophisticated residence in the heart of Edmonton.

Projects