Commercial

Aspekt+ Outswing Window Series

Enhance your space with Aspekt+, the first U.S. Passive House certified outswing window for commercial and multi-family buildings. Enjoy the best of North American performance and European operation with modern, light-filled design.

Winner: 2022 Most Innovative Window by Window & Door
Passive House Whole-window thermal performance up to U-0.15
Unique Outswing function with Larger Sizes
Hybrid Fiberglass and uPVC Polymer Sash

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Design Options

Configurations

Selected:

Awning Windows

Casement Windows

Fixed Casement Windows

Low Profile Fixed Windows

Finish

Selected:

Midnight Black

Black

White

Umber Bronze

Tyrol windows and doors feature RENOLIT EXOFOL FX, a high-performance film great for residential applications. Its advanced multi-layer design—comprising a PVDF top layer, PMMA core, and Solar Shield Technology (SST) base—reduces heat build-up and provides superior UV, pollution, and salt-air resistance. Easy to clean and durable, it enhances both the aesthetics and longevity of residential projects, supported by a 20-year North American warranty.

Note: Colors are representative and can vary based on a computer screen.

Request color cards or painted fiberglass samples. Order samples here.

Handles

Selected:

Folding Crank Handle

Easy Grip ADA Crank Handle

Lock Handle

Glass

Selected:

Triple-pane insulated glass

Quad-pane insulated glass

Passive House Frame U-factor of 0.21.

Passive House Whole-Window U-factor down to U-0.15.

Fully fiberglass-reinforced sash with REHAU’s proprietary RAU-FIPRO material provides superior strength to build larger window sizes without steel reinforcement inside the sash.

Sophisticated multi-chambered profiles for superior thermal efficiency.

Master-frame mulled assembly design eliminates traditional “back-to-back" frame connections. Fusion welding creates strong, continuous joints between profiles resulting in corners that can handle significant stress.

Structural performance ratings up to CW-PG-1000.

Premium hardware with around-the-sash locking points yield superior air and water-tightness, even in oversize operable windows.

UV-resistant foil finish offers lasting durability and offers a 20 year warranty.

Integral nailing flange for ease of new construction installation.

Discover our Product Catalog for more information.

Aspekt Datasheet

[DOWNLOAD]

This specification system has been prepared to assist design professionals in the preparation of project or office master specifications. It follows guidelines established by the construction specifications institute, and therefore maybe used with most master specification systems with minor editing.

Aspekt 3 part spec

[DOWNLOAD]

Details & CAD Files

Aspekt Casement Awning 3-1.5 Frame with Stucco Key

[DOWNLOAD]

Aspekt Casement Awning 3-1.25 Frame

[DOWNLOAD]

Aspekt Casement Awning Over Fixed Clipped in Sash 3-1.5 Frame

[DOWNLOAD]

Aspekt Large Picture Window 3-1.25 Frame

[DOWNLOAD]

Aspekt Small Picture Window 3-1.25 Frame

[DOWNLOAD]

Aspekt+ Detail Example

[DWG][BAK]

Aspekt+CAD

[DWG][RFA]

INSTALLATION GUIDELINES:

Installation File [DOWNLOAD]

Visit warranty page.

Visit Warranty Page

Why Choose Aspekt+?

Long-Lasting Durability

Built for all climates, Aspekt+ features a multi-chambered frame design enhancing structural strength and longevity. Fusion-welded corners and triple-seal technology protect against air infiltration, even in harsh weather. Premium hardware ensures heavy-duty performance, effortlessly handling large and heavy sashes.
White frames resist fading and yellowing because of its high titanium dioxide content. Our color frames use RENOLIT EXOFOL FX, which provides weather and UV resistance which is specially formulated for North American climates and backed by its manufacturer with a 20-year warranty.

Architectural Freedom for Commercial Design

Crafted from a proprietary hybrid fiberglass-polymer, Aspekt+ frames deliver exceptional thermal performance and strength, supporting larger operable windows. They accommodate openings up to 30% larger than traditional North American outswing uPVC windows while maintaining stability. The sleek design maximizes daylight and solar gain, seamlessly integrating with exterior insulation through frame extenders and a nailing flange.

Enhanced Peace and Quiet

Create a tranquil environment with Aspekt+'s triple pane glass and superior acoustic insulation. Our advanced technology reduces noise pollution. This makes them ideal for builds in urban areas near trains and highways.

Healthy and Safe Living Spaces

Aspekt+ windows are engineered to improve indoor air quality by blocking outdoor pollutants and allergens. Equipped with advanced multi-point locking systems for enhanced security, they also minimize condensation, reducing the risk of mold growth. Built with lead-free frames and fully compliant with AAMA’s PB-free standards, Aspekt+ windows ensure safe, stylish, and functional spaces that prioritize occupant well-being.

Affordability Without Compromise

Alpen offers superior value, delivering high-performance windows and doors at a competitive price point. Our commitment is to make energy-efficient, eco-friendly solutions more accessible without compromising on quality. By choosing Alpen, you're investing in sustainable products that help reduce environmental impact, supporting your goals for greener, more efficient commercial projects.

Ensuring Customer Success

Partnering with Alpen means gaining access to expert support throughout your project. Our customer success team provides project-specific thermal modeling, design consultation, and hands-on installer training to ensure optimal performance. As an American manufacturer, we offer faster lead times than imported alternatives, helping you meet tight project deadlines with confidence. Our dedicated sales consultants work closely with you to align production and delivery schedules with your construction timelines.

Passive House Performance for Commercial Projects

Aspekt+ windows are very energy efficient and comfortable. They use RAU-FIPROTM fiberglass-reinforced uPVC frames.
These windows also feature triple-seal technology, which helps achieve U-values as low as 0.14. Alpen's advanced insulating glass ensures superior insulation and optical properties including summertime solar heat control, wintertime insulation and maximizing natural light.
Perfect for new construction, Aspekt+ is the all-in-one solution for commercial buildings seeking passive house-level energy savings and durability.

Certified for Passive House

Alpen was the first North American window manufacturer to achieve dual certification from both PHIUS and PHI. We specialize in high-performance building products, with a focus on energy-efficient windows and doors. Our Passive House-certified products help architects, general contractors, and developers meet or exceed modern energy codes and build climate-responsive buildings.

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Frequently Asked Questions

What are the benefits of fiber-reinforced uPVC windows for commercial buildings?

Fiber-reinforced uPVC windows offer superior strength, energy efficiency, and durability. They combine the lightweight benefits of uPVC with the added structural integrity of fiberglass, making them ideal for larger openings and commercial-grade performance. Additionally, they provide excellent thermal insulation, soundproofing, and weather resistance.

Are fiber-reinforced uPVC windows suitable for high-rise commercial buildings?

Yes, fiber-reinforced uPVC windows are well-suited for high-rise commercial buildings due to their enhanced structural strength, excellent thermal insulation, and resistance to wind loads. The fiberglass reinforcement ensures that the windows can handle the pressures and demands of taller buildings without compromising performance or safety.

How do fiber-reinforced uPVC windows improve energy efficiency in commercial properties?

The fiber reinforcement in uPVC frames enhances thermal performance by reducing heat transfer. Combined with advanced glazing options, these windows help minimize heating and cooling costs, contributing to an overall reduction in a building's energy consumption. This makes them a great option for achieving energy efficiency goals in commercial properties.

What is the difference between standard uPVC windows and fiber-reinforced uPVC windows?

Standard uPVC windows are made purely from unplasticized polyvinyl chloride, while fiber-reinforced uPVC windows incorporate fiberglass within the frame, providing added strength and stability. This reinforcement allows for larger window sizes and improved structural integrity, making fiber-reinforced uPVC windows more suitable for commercial and high-performance applications.

Are fiber-reinforced uPVC windows durable enough for large commercial projects?

Yes, fiber-reinforced uPVC windows are engineered for strength and durability, making them suitable for large commercial projects. The addition of fiberglass reinforcement enhances structural stability, allowing for larger window sizes without the risk of warping or bending, even in extreme conditions. This makes them ideal for high-performance commercial applications.