A Simple Guide to Le Corbusier: The Father of Modern Architecture

Le Corbusier is one of the most influential architects of the 20th century. His work transformed the way we design buildings, homes, and cities. If you are curious about modern architecture or want to understand the principles of minimalist design, this guide introduces you to Le Corbusier’s life, ideas, and legacy.   Who was Le […]

The Beauty of Imperfection: Wabi-Sabi in Architecture

In a world driven by precision and perfection, wabi-sabi invites us to pause. To see beauty not in flawlessness, but in the irregularities that make something real. Rooted in Japanese philosophy, wabi-sabi celebrates the impermanent, the incomplete, and the imperfect, qualities that mirror life itself.  In architecture, this approach changes how we experience space. Instead […]

Minimalism and Maximalism: The Duality of Design

In architecture, minimalism and maximalism are often seen as opposites, two different ways of expressing space, light, and intention. But when we look deeper, both philosophies share the same goal: to create meaning through design. The difference lies not in what they build, but in what they choose to reveal.  The Essence of Minimalism Minimalism […]

World Architecture Day 2025: The Meaning of Design for Strength

Celebrated on the first Monday of October, World Architecture Day honors the art and science of designing human spaces. Established in 1949 and aligned with the UN World Habitat Day in 1996 by the International Union of Architects (UIA), it recognizes not only the discipline itself but also the vital role architects play in building […]

OTIIMA presents the Documentary “SIZA” by Gallery Institute at MAAT

On October 29, the Museum of Art, Architecture and Technology (MAAT) in Lisbon will host the world premiere of “SIZA”, a documentary produced by the Gallery Institute and directed by Augusto Custodio.   Dedicated to Álvaro Siza Vieira, winner of the Pritzker Prize and one of the most influential architects of our time, the film […]

An opening to the world: Contemplation, Light, and Time

Imagine a silent and elegant vantage point, a place where you can observe the world without barriers, where indoors and outdoors meet in perfect harmony. Minimalist windows do that: they are portals that open our spaces to life beyond, offering a fresh perspective on time, light, and landscape.   Inspired by the figure of the flâneur, […]

ELEMENTAL: Architecture That Builds Communities

We see architecture as a dialogue between vision and place, a discipline that shapes how we live and connect with the world. Few studios embody this philosophy as deeply as Elemental, the Chilean practice led by Pritzker Prize laureate Alejandro Aravena.  Their work is recognized for its incremental design approach, which allows communities to complete […]

IS House: Architecture that Floats in the Landscape

Perfectly attuned to the contours of its trapezoidal plot, the IS House embraces a privileged southeast view over a lush green expanse. Its design draws the eye along a central axis from east to west, framing the surrounding nature as a living artwork.  The site’s natural topography, with a gentle slope from the entrance to […]

The Evolution of Architecture in Italy

Italy is a country where architecture tells stories older than time. From the ancient ruins of Rome to the clean lines of modern design in Milan, Italian architecture is a layered tapestry of culture, history, and innovation.  Walking through any Italian city feels like entering an open-air museum. Rome, the Eternal City, is perhaps the […]

Eduardo Souto de Moura: A Career in Architecture

Today, we celebrate the birthday of Eduardo Souto de Moura, one of Portugal’s most renowned architects, whose work has had a profound influence on contemporary architecture worldwide. Famous for his minimalist and impactful designs, Souto de Moura combines tradition and modernity to create spaces that are functional and refined.     A Journey in Architecture  Born […]

Compare products

Compare products easily by analyzing features and specifications side by side to find the best option for your needs.

thermal-transmittance

Thermal Transmittance

watertightness

Watertightness

air-permeability

Air permeability

wind-resistance

Wind resistance

resistance

Impact resistance

insulation

Sound insulation

security

Security

thermal-transmittance

Thermal Transmittance

Uw Ug = 1,0 (38mm)
Uw Ug = 0.5 (54mm)

watertightness

Watertightness

ISO EN 12208 + ISO EN 1027

E1200 (54mm)

(4 classes above 9A) 1

air-permeability

Air permeability

ISO EN 12207 + ISO EN 1026

Class 4

(600 Pa or 119 Km/h) 1 2

wind-resistance

Wind resistance

ISO EN 12210 + ISO EN 12211

Class C5

(in 6 possible classes) 2

resistance

Impact resistance

ISO EN 12600 + ISO EN 1630

Class 5

(2000 Pa or 200 Km/h)

insulation

Sound insulation

ISO EN 10140 + ISO EN 717

Rw: 42 db (up to)
security

Security

ISO EN 1628 + ISO EN 1629 + ISO EN 1630

RC2: (WK2)

3

thermal-transmittance

Thermal Transmittance

Uw Ug = 1,0 (38mm)
Uw Ug = 0.5 (54mm)
Uw Ug = 0.47 (62mm)

watertightness

Watertightness

ISO EN 12208 + ISO EN 1027

E1200

(7 classes above 9A) 1

air-permeability

Air permeability

ISO EN 12207 + ISO en 1026

Class 4

(600 Pa or 110 Km/h) 1

wind-resistance

Wind resistance

ISO EN 12210 + ISO EN 12211

Class B5

(2000 Pa or 200 Km/h) 1

resistance

Impact resistance

ISO EN 12600 + ISO EN 1630

Class 5 (38mm / 54mm)

1C1 | 2B2 | 1B1 2 (62mm)

insulation

Sound insulation

ISO EN 10140 + ISO EN 717

Rw: 42 db (up to) (38mm / 54mm)

Rw: 44 db (up to) (62mm)

security

Security

ISO EN 1628 + ISO EN 1629 + ISO EN 1630

RC2: (WK2)

3

thermal-transmittance

Thermal Transmittance

Uw Ug = 1.0 (38mm)
Uw Ug = 0.5 (54mm)

watertightness

Watertightness

ISO EN 12208 + ISO EN 1027

E1650

(7 Clases superior a 9A) 1

air-permeability

Air permeability

ISO EN 12207 + ISO EN 1026

Class 4

(600 Pa or 110 Km/h) 1

wind-resistance

Wind resistance

ISO EN 12210 + ISO EN 12211

Class C5

(2000 Pa or 200 Km/h) 1

resistance

Impact resistance

ISO EN 12600 + ISO EN 1630

Class 5
insulation

Sound insulation

ISO EN 10140 + ISO EN 717

Rw: 42 db (up to)
security

Security

ISO EN 1628 + ISO EN 1629 + ISO EN 1630

RC2: (WK2)

2

thermal-transmittance

Thermal Transmittance

Uw Ug = 0.7 (38mm)
Uw Ug = 0.7 (54mm)

watertightness

Watertightness

ISO EN 12208 + ISO EN 1027

Class 8A

(450 Pa or 95 km/h)

air-permeability

Air permeability

ISO EN 12207 + ISO en 1026

Class 3

(600 Pa or 110 Km/h)

wind-resistance

Wind resistance

ISO EN 12210 + ISO EN 12211

Class C5

(2000 Pa or 200 Km/h)

resistance

Impact resistance

ISO EN 12600 + ISO EN 1630

Class 5

(in 6 possible classes)

insulation

Sound insulation

ISO EN 10140 + ISO EN 717

Rw: 38 db (up to)
security

Security

RC2: (WK2) 2

RC2: (WK2)

Newsletter

OTIIMA - Much more than a window

Subscribe