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.

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

insulation

Acoustic insulation

security

Resistance class

thermal-transmittance

Thermal Transmittance

Uw 1.87 W / m2 K (26mm)
Uw 1.58 W / m2 K (38mm)
Uw 1.07 W / m2 K (54mm)

watertightness

Watertightness

ISO EN 12208 + ISO EN 1027

up to E900 (26mm)
up to E1050 (38mm)
up to E1200 (54mm)
air-permeability

Air permeability

ISO EN 12207 + ISO EN 1026

up to Class 3 (26mm)
up to Class 4 (38mm)
up to Class 4 (54mm)
wind-resistance

Wind resistance

ISO EN 12210 + ISO EN 12211

Class B3 (26mm)
Class C5 (38mm)
Class B4 (54mm)
insulation

Sound insulation

ISO EN 10140 + ISO EN 717

up to 42 db
security

Security

ISO EN 1628 + ISO EN 1629 + ISO EN 1630

RC2: (WK2) *1
thermal-transmittance

Thermal Transmittance

Uw 1.56 W / m2 K (38mm)
Uw 1.06 W / m2 K (54mm)
Uw 0.89 W / m2 K (62mm)

watertightness

Watertightness

ISO EN 12208 + ISO EN 1027

up to E1200 (38 mm)
air-permeability

Air permeability

ISO EN 12207 + ISO en 1026

up to Class 4 (38 mm)
wind-resistance

Wind resistance

ISO EN 12210 + ISO EN 12211

Class B5 (38 mm)
insulation

Sound insulation

ISO EN 10140 + ISO EN 717

up to 38 db
security

Security

ISO EN 1628 + ISO EN 1629 + ISO EN 1630

RC2: (WK2) *1
thermal-transmittance

Thermal Transmittance

Uw 1.61 W / m2 K (38mm)
Uw 1.08 W / m2 K (54mm)

watertightness

Watertightness

ISO EN 12208 + ISO EN 1027

up to E1650 (38 mm)
air-permeability

Air permeability

ISO EN 12207 + ISO EN 1026

up to Class 4 (38 mm)
wind-resistance

Wind resistance

ISO EN 12210 + ISO EN 12211

Class C5 (38 mm)
insulation

Sound insulation

ISO EN 10140 + ISO EN 717

up to 40 db
security

Security

ISO EN 1628 + ISO EN 1629 + ISO EN 1630

RC2: (WK2) *1
thermal-transmittance

Thermal Transmittance

Uw 1.55 W / m2 K (38mm)
Uw 1.07 W / m2 K (54mm)

watertightness

Watertightness

ISO EN 12208 + ISO EN 1027

up to Class 8A (38 mm)
up to Class 8A (54mm)
air-permeability

Air permeability

ISO EN 12207 + ISO en 1026

up to Class 3 (38 mm)
up to Class 4 (54mm)
wind-resistance

Wind resistance

ISO EN 12210 + ISO EN 12211

Class B3 (38 mm)
Class C4 (54mm)
insulation

Sound insulation

ISO EN 10140 + ISO EN 717

up to 38 db
security

Security

RC2: (WK2) 2

RC2: (WK2) *1

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