Libre House

Country

Portugal

Architecture

Mário Martins Atelier

Photography

FG + SG - Fotografia de Arquitectura

About the project

Libre House, designed by Mário Martins, exemplifies an impressive combination of lightness and precision, wherein architecture and landscape integrate into a cohesive and fluid composition. Characterized by its distinctively sharp roofline, the structure extends outward, producing a dramatic cantilever that enhances openness and shelter. The exposed concrete, natural wood, and expansive glass mirror the raw beauty of the surrounding environment, allowing the residence to coexist harmoniously with the coastal topography. Each element is distilled to its fundamental form, reinforcing a minimalist vision that emphasizes spatial purity and unobstructed vistas.

Central to this experience of transparency and continuity are the OTIIMA Plus windows, which eliminate physical boundaries through their floor-to-ceiling glazing. These ultra-slim profiles frame the infinite horizon while ensuring exceptional thermal and structural performance, thus addressing the region’s challenging climate conditions.

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    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 = 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)
    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

    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)

    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