Portugal Pavilion Expo Osaka 2025

Country

Japan

Architecture

Kengo Kuma & Associates

Photography

Fernando Guerra

About the project

Portugal and Japan share a maritime soul, shaped by the ocean and connected since the Age of Discoveries, when Portuguese navigators first reached Tanegashima. At Expo Osaka 2025, this shared heritage becomes architecture, not by representing the sea, but by making it felt. On an island in the Seto Inland Sea, the Portugal Pavilion questions how water, so fluid and intangible, can take form. The answer is a sensory space, where ropes once used in navigation are transformed into living mesh, animated by wind and light in constant, rhythmic motion.

This vertical sea redefines architecture as something that breathes and moves. Free from rigid volumes, the pavilion unfolds as a light and fluid structure. It exchanges weight for presence, creating an experience suspended between breeze, rhythm, and light. More than a building, it is a meeting point: between tradition and future, Portugal and Japan, the earth and the horizon.

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    Compare products

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    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)