Curtain Wall System

Curtain Wall System


Engineered to expand your Views & Comfort


Thermal Break

Narrow Sight-line

Mullion Options

Extreme Durability

Sound Insulation

Design Flexibility


4F1 Steel Curtain Wall

The 4F1 steel Curtain Wall is the ideal solution for glass walls requiring extremely narrow sections which meet strict thermal requirements and structural building codes and maintain an elegant, clean style.

4F2 Steel Curtain Wall

Utilized in conjunction with the 4F1 system, the adaptive 4F2 steel Curtain Wall yields the ability to combine numerous load-bearing structures, thus opening the door to endless architectural creativity.

Curtain Wall - Thermally Broken Steel USA 02
 
 

4F1+2


Unlimited

Integration

– realized –

Large glass walls, also referred to as Curtain Walls, have become a hallmark of city style architecture and residential design where access to natural light and abundant views are desired. With our innovative 4F steel Curtain Wall system, we are able to provide dramatic glass walls with exceptional thermal performance in a full range of exceptional materials and finishes without compromising the sight-line.Additionally, 4F can be integrated with our entire collection of thermally broken steel window and door systems to produce a system that is simply unmatched in comfort, style and maintainability.

Thermally Broken Curtain Wall Brochure

Downloadable Brochure

Our downloadable Curtain Wall brochure provides the ideal product overview.

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Thermally Broken Steel Curtain Wall Girder Options

Support Integration

Our 4F2 Curtain Wall is adaptable to almost any existing loadbearing support structure, thus offering maximum design flexibility.

Thermally Broken Steel Curtain Wall NFRC Rated

NFRC Certification

We understand the importance of building codes, which is why we provide all of the NFRC documentation you required.


Material & Finish Options

If you are familiar with our products than you are already aware that our quality and diversity in materials and finish options are nothing less than superior. Similar to our other thermally broken products, both the 4F1 & 4F2 Curtain Wall series are available in Painted Galvanized Steel, 304 & 316L Stainless Steel, Cor-Ten & OT67 Bronze. Due to the properties of Bronze, it is only offered as an option for the exterior cover (a) but not the interior structural mullion (b).

View Material Details Here

Steel Curtain Wall Material and Finish Options

Steel Curtain Wall Mullion Styles

Mullion Styles

The two standard mullion styles are the Recessed 2” (50mm) style, which is detailed on the far left, and the Flush 4” (100mm) style, which is detailed on the right. To stay ahead of the increasing demand for larger openings in the residential and commercial architecture, the 4F1 series was engineered with steel mullions that achieve a remarkably high moment of inertia to meet the static load requirements without compromising the aesthetic style or quality of the materials.


Mullion & Transom Sizes

The standard width (w) dimension for all mullion/transom sections in the 4F1 series is 2″ (50mm) but the height (h) is available in six different sizes ranging from 2″ (50mm) to 7″ (180mm). The varying mullion height options allows the designer or architect the possibility to increase the overall size of the glass wall without additional intermediate structural mullions – therefore providing a much larger continuous glass surface without compromising the viewing experience.

Steel Curtain Wall Transom Sizes

Steel Curtain Wall Load Bearing Structure

Load-Bearing Substructure

The detail to the left shows a sectional view of the the structural mullion (c) as well as the integrated spring loaded coupling device (d). A key benefit of the 4F1 Curtain Wall system is its ability to hide the individual connections between the load bearing mullions to create a seamless visual transition throughout the entire wall. Additionally, the internal coupling component allows for a much smoother and reliable installation and/or disassembly procedure.


4F1 Assembly Overview

On the right is a detailed assembly view of the 4F1 Curtain Wall system which highlights key elements such as the: structural load-bearing mullion (e), weather tight EPDM gaskets (f), pre-drilled securement plate with integrated weather tight EPDM gaskets (g), closed-cell polyethylene thermal barrier (h), exterior glazing cover (i), and the insulated glazing pocked for glass thickness up to 2 3/16” or 56mm (j).

4F1 Frame Specifications - Thermally Broken Steel USA

4F1 Curtain Wall Assembly Overview

4F1 Curtain Wall Assembly Overview

4F2 Assembly Overview

On the left is a detailed assembly view of the 4F2 Curtain Wall system which highlights key elements such as the: exsisting load-bearing support (k), integrated substructure (l), weather tight EPDM gasket system (m), variable thermal barrier (n), pre-drilled securement plate with integrated weather tight EPDM gaskets (o), insulated glazing pocked for glass thickness up to 2” or 50mm (p), and the exterior glazing cover (q).

4F2 Frame Specifications - Thermally Broken Steel USA


Request a Sample Kit

If a fully glazed, over-sized corner sample with your choice of glazing, finish and material isn’t enough, we also include additional material, finish and profile samples for a true reflection of our attention to detail.

Come Tour our Factory

Interested in observing how our Curtain Wall systems are made? Come meet and watch the talented artisans creating your product. From forming the steel profiles through final inspections and packaging, you will experience it all.

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