OTIIMA PLUS: Redefining Minimalist Frame Systems with Superior Performance

July 11, 2024

At OTIIMA, we are dedicated to pushing the boundaries of window design, continually improving aesthetics, functionality and performance. Our latest innovation, OTIIMA PLUS, represents the pinnacle of our expertise in minimalist frame systems, offering a revolutionary combination of refined aesthetics and superior performance.



The Evolution of Minimalism: OTIIMA PLUS

OTIIMA PLUS is not just an upgrade; it is the culmination of years of experience and innovation in minimalist framing systems. This advanced system features a flush frame design that blends seamlessly with any architectural style, providing a clean, uninterrupted view that enhances the overall aesthetics of any space.


Unparalleled Performance and Design

Our commitment to excellence is evident in the meticulous design and engineering of OTIIMA PLUS. This system has been distinguished with multiple design awards, a testament to its superior air and water performance. The flush head and sill tracks, a signature feature of the PLUS series, ensure a sleek, modern look while maintaining exceptional structural integrity and stability.



  • Spacious living room with panoramic glass walls by OTIIMA, offering stunning views of the surrounding landscape.

    Slide title

    Write your caption here
    Button
  • Modern living room with large sliding glass windows by OTIIMA, showcasing seamless indoor-outdoor transition.

    Slide title

    Write your caption here
    Button
  • Sliding glass window installation by OTIIMA, highlighting beautiful countryside views and contemporary design.

    Slide title

    Write your caption here
    Button

© João Ferrand

Versatility Across Climates and Applications

OTIIMA PLUS is available in three different configurations, each designed to meet specific climate and project requirements:

  • 26 PLUS: Perfect for warm climates or projects with reduced thermal requirements, this hybrid system features insulated glass and uninsulated monolithic aluminum frames. Designed to accept 26mm (1") insulated glass, 26 PLUS is ideal for projects where aesthetics and basic thermal performance are a priority.
  • 38 PLUS: Building on the versatility of the 38 CLASSIC, the 38 PLUS system offers enhanced thermal versatility and structural strength. Suitable for both warm and moderately cold climates, it accepts 1-1/2" (38 mm) insulated glass and can also support triple-pane glass for increased thermal efficiency.
  • 54 PLUS: Designed specifically for cold climates, the 54 PLUS system is optimized for 54mm (2-1/8") triple-pane insulated glass for maximum thermal performance. It can also accommodate oversized "jumbo" double-pane glass and multiple laminated glass options for sound reduction and impact resistance.


Modern living room with large sliding glass windows by Otiima, showcasing seamless indoor-outdoor transition.

© João Ferrand

Innovative Configurations for Every Design Need

OTIIMA PLUS offers a wide range of configurations to meet different architectural needs, including fixed windows, multi-panel sliding windows/doors, and corner opening configurations. In addition, door automation can be seamlessly integrated into all of our sliding door systems for added convenience and sophistication.


A New Benchmark in Minimalist Design

More than just a window system, OTIIMA PLUS is a statement of refined elegance and unparalleled performance. By capturing the essence of a classic design and enhancing it with modern innovations, OTIIMA PLUS sets a new standard in minimalist framing systems. Whether you are designing for warm, temperate or cold climates, OTIIMA PLUS offers the versatility, durability, and aesthetics to bring your architectural vision to life.


Discover our projects with OTIIMA Plus System here.

By OTIIMA MMTW April 3, 2025
The world of architecture and design is filled with inspiring events throughout the year, but April stands out as a particularly dynamic month. With a lineup of prestigious exhibitions, fairs, and industry gatherings, it offers a unique opportunity to engage with groundbreaking ideas and emerging trends. In this article, we explore the top architecture and design events taking place this April, from the artistic influence of Art Paris to the innovation showcased at Expo 2025 Osaka. Art Paris 2025 Grand Palais Éphémère, Paris | April 3–6, 2025  A celebration of contemporary art, Art Paris returns with a focus on architectural influences in modern creative expression. Featuring an impressive selection of galleries, this edition highlights the dialogue between art and space, offering a unique perspective for architects seeking inspiration beyond traditional frameworks.
By OTIIMA MMTW March 27, 2025
March 27 marks the anniversary of Ludwig Mies van der Rohe, one of the most influential architects of the 20th century. His philosophy, built on clarity, simplicity, and material honesty, continues to inspire contemporary architecture. His work embodies a timeless vision that remains as relevant as ever. Here are five key lessons architects today can learn from Mies van der Rohe. Less is More Perhaps his most famous principle, “Less is more,” summarizes Mies’ approach to design: stripping away the unnecessary to reveal the essential. His buildings are characterized by clean lines, open floor plans, and an absence of ornamentation. This philosophy encourages architects to prioritize spatial clarity and material integrity, resulting in structures that are modern and enduring.
By OTIIMA MMTW March 20, 2025
Scandinavian architecture and design represent a deep connection between nature, functionality, and the human experience. Grounded in a landscape of vast fjords, endless forests, and soft northern light, it reflects a unique philosophy and way of life. The Origins  The origins of Scandinavian architecture date back to the Viking era, when timber structures and intricate carvings reflected a profound connection to materiality and craftsmanship. As centuries unfolded, this reverence for natural materials persisted, evolving with the changing needs of modern society. The early 20th century witnessed the emergence of Nordic Classicism, a restrained yet elegant style that soon gave way to a more functional and human-centric approach: Scandinavian Modernism.
By OTIIMA MMTW March 13, 2025
Belgium’s topography is a delicate balance between history and modernity. From Bruges's medieval charm to Antwerp and Brussels's bold contemporary structures, architecture here is a study in balance. Minimalism finds a profound expression where clean lines, raw materials, and seamless transitions define space. At OTIIMA, we are privileged to contribute to this evolving narrative, shaping spaces where glass dissolves into air, thresholds blur, and architecture becomes an experience. In Belgium, three projects reference our philosophy: Villa Izegem, Villa P, and Villa V à Harelbeke. Villa Izegem | Govaert & Vanhoutte Architects Villa Izegem is an ode to minimalism in its purest form. Govaert & Vanhoutte Architects sculpted a space where vast glass expanses erase the boundary between nature and dwelling. The land breathes through the structure, light carving its way across surfaces, shifting with time. OTIIMA’s ultra-slim profiles amplify this sense of weightlessness, ensuring that nothing interrupts the dialogue between inside and out. The villa is not simply inhabited; it’s a quiet retreat where transparency is the ultimate luxury.
By OTIIMA MMTW March 8, 2025
Visionary minds have long shaped the architecture industry, yet women architects have fought for recognition in a male-dominated field for decades. Today, their contributions are undeniable, with groundbreaking projects that push the boundaries of design, functionality, and sustainability. This article highlights a few remarkable projects led by women architects that demonstrate their profound impact on modern architecture. 1. Heydar Aliyev Center – Zaha Hadid  Zaha Hadid’s Heydar Aliyev Center in Baku, Azerbaijan, is a remarkable example of architectural fluidity and innovation. The building features a sinuous, wave-like form that challenges traditional architectural norms, creating an uninterrupted spatial experience. Renowned for her bold and futuristic designs, Hadid proved that architecture can be functional and sculptural. The center is a cultural hub that embodies modernity and movement in its design.
By OTIIMA MMTW March 6, 2025
Chinese architect Liu Jiakun has been honored with the 2025 Pritzker Architecture Prize, recognizing his contributions to contemporary architecture. This prestigious award, often called the "Nobel Prize of Architecture," celebrates Liu's work, which harmoniously blends traditional Chinese aesthetics with modern functionality.
By OTIIMA MMTW February 27, 2025
As the 2025 Academy Awards approach, the spotlight is once again on the art of filmmaking, a fusion of storytelling, visual composition, and immersive world-building. Among the many crafts that shape a film’s identity, set design plays a pivotal role in defining cinematic spaces' realism and aesthetic coherence. The relationship between film and architecture is more than just a visual spectacle; it studies how space, light, and structure influence perception and emotion. 
By OTIIMA MMTW February 20, 2025
Mário Martins is synonymous with elegant architectural language that integrates contemporary design with the raw beauty of the Algarve. His projects embrace southern Portugal's unique topography, light, and atmosphere, crafting sculptural spaces intimately connected to their surroundings. At the core of his work is a dedication to purity, fluidity, and precision. This article explores three extraordinary residences where OTIIMA’s minimalist window systems enhance the architectural vision: Libre House, Voluta House, and Lioz House. Libre House  Perched atop a gentle slope, Casa Libre epitomizes the dialogue between architecture and nature. Its monolithic white forms contrast with the rugged landscape, creating a visual serenity that extends beyond its physical boundaries. The expansive glass façades dissolve the separation between interior and exterior, framing panoramic views of the Atlantic horizon. Here, ‘liberty’ is a tangible experience of openness, weightlessness, and a deep connection with the surrounding elements.
By OTIIMA MMTW February 13, 2025
The essence of the Vision system is the art of framing nature without intrusion. Inspired by Ludwig Mies van der Rohe’s "less is more" philosophy and Le Corbusier’s concept of the horizontal window, Vision transcends conventional boundaries to create a connection between interior and exterior spaces. A Revolution in Minimalist Design  Minimalist architecture is about purity, function, and seamless integration. Vision system sliding windows redefine architectural transparency by eliminating visual obstructions and maximizing natural light. Unlike traditional systems that rely on frames as structural supports, Vision takes a radical approach: glass becomes the self-supporting element, free to slide without dimensional constraints. The result is a panoramic window that dissolves the barriers between solid and void, between built form and nature. The frame no longer dictates design but transforms into a discreet guide, leveling out across the periphery and erasing all intrusive lines. The transition between indoors and outdoors is no longer an interruption but a fluid continuum. Read also- Less Is More: The Path of Minimalism in Architecture
By OTIIMA MMTW February 6, 2025
Situated in Santa Barbara, 845 Sea Ranch Drive offers expansive vistas of the Pacific Ocean. Designed by The Warner Group, this residence showcases luxury interwoven with advanced design principles and the natural environment. Architecture and Landscape The home presents a subtle façade from the exterior, whereas the interior reveals designed spaces that engage seamlessly with the surrounding landscape. Expansive glass doors and adaptive skylights eliminate barriers between indoor and outdoor environments. This design strategy allows natural light and ocean breezes to permeate the space while the elevated residence positioning optimizes panoramic views toward the horizon.
More Posts
Share by: