First passive house in Brazil

  • Building Type : Isolated or semi-detached house
  • Construction Year : 2017
  • Delivery year : 2017
  • Address 1 - street : BR - 59290-972 0000 SãO GONçALO DO AMARANTE (NORTHEAST), Brazil
  • Climate zone : [As] Tropical dry

  • Net Floor Area : 56 m2
  • Construction/refurbishment cost : 68 000 €
  • Cost/m2 : 1214.29 €/m2

Certifications :

  • Primary energy need :
    113 kWhpe/m2.year
    (Calculation method : Other )
Energy consumption
Economical buildingBuilding
< 50A
A
51 à 90B
B
91 à 150C
C
151 à 230D
D
231 à 330E
E
331 à 450F
F
> 450G
G
Energy-intensive building
First construction in Brazil built according to the international Passive House standard and financed by the Bundesministerium für Bildung und Forschung – BMBF (German ministry of Education and Research) in partnership with SENAI – RN (Brasil). This project was built with (imported) German technologies, because there’s currently not much technology available in Brazil with the necessary performance.

We imported bricks from a company called LIAPAN, because these bricks can be produced in Brazil and they are not burnt as the ones we have on the market, which will help reducing the CO2 emission from brick companies.

The main focus is to improve Brazilian building standards construction to make people pay more attention to air quality, thermal comfort, energy spending, amongst others.

The house is located at SENAI, which is a school focused on developing construction labor (from Brick layers to Construction coordinators). This pilot project will be used to spread Passive House technologies:  it will serve as a seminar room for hand labor, engineers, architects and anyone who is curious about it.

We also want to use this building to convince local manufacturers to produce the required high performance components. This will have a social impact, with the creation of new jobs and knowledge sharing.

In this project we also have an irrigation system (EcoRain – Germany) which can save up to 70% of water for grass irrigation, the whole system is automated. This system is way better than what we have available on our market because it avoids the over use of water because of evaporation, and also guarantees that every part is irrigated with the same amount of water (differently than the spliclers we have available).

See more details about this project

 https://passivehouse-database.org/#d_5892

Data reliability

3rd part certified

Photo credit

Luiz Bezerra

Contractor

    Luiz Bezerra (Project Manager, EcoGerman - Brasil) / Thorsten Pollatz (Project Manager, Agroscience – Germany)

    luiz.alberto@b3rep.com.br

Construction Manager

    Luiz Bezerra (Project Manager, EcoGerman - Brasil) / Thorsten Pollatz (Project Manager, Agroscience – Germany)

    luiz.alberto@b3rep.com.br

Stakeholders

    Designer

    Felipe Bezerra Arquitetos - Brasil, Architekten Stein Hemmes Wirtz - Germany


    Structures calculist

    Joel Araujo


    Certification company

    Passive House Institute

    Camille Sifferlen

Contracting method

Other methods

Owner approach of sustainability

The idea behind this project was to bring some of the best construction practices available in the world. For instance, passive house standards deliver a very low energy consumption with a great air and temperature quality.

We also want to focus on developing the construction standards in Brazil by helping manufatures improve their products and train the hand labor. The house is located in a school for workers such as construction coordinators, brick layers, technicians, etc. 

Architectural description

To deliver suitable design we had help from Germany, because passive house design is currently not really known in Brazil.The idea behind is to create an environment where we will teach about passive houses to anyone who is interested in, and let people feel the difference between the regular construction in Brazil and a Certified passive house. 

Energy consumption

  • 113,00 kWhpe/m2.year
  • 300,00 kWhpe/m2.year
  • Other

    Cooling load 10 W/m2
    Cooling and dehumidification demand 69 kWh /(m2a ) calculated according to PHPP

Envelope performance

    Exterior wall
    LIAPLAN ULTRA 08 - 0,080 W/(mK) - 365 mm
    Exterior Plaster: 0,30 W/(mK) - 10 mm
    U-value = 0.21 W/(m2K)

    Basement floor / floor slab
    Concrete - 2,50 W/(mK) - 200 mm
    XPS - 0,035 W/(mK) - 250 mm
    U-value = 0.138 W/(m2K)

    Roof
    Concrete - 2,50 W/(mK) - 200 mm
    XPS - 0,035 W/(mK) - 250 mm
    U-value = 0.135 W/(m2K)

    Frame
    Unilux , IsoStar
    PVC FRAMES
    U w-value = 0.95 W/(m2K)

    Glazing
    U g-value = 0.75 W/(m2K)
    g -value = 21 %

    Entrance door
    U d-value = 0.71 W/(m2K)

  • 0,49

Systems

    • No heating system
    • No domestic hot water system
    • Reversible heat pump
    • Double flow heat exchanger
    • No renewable energy systems

    PAUL, novus F 300
    ventilation unit with 84% heat recovery and 73% humidity recovery

GHG emissions

  • 23,20 KgCO2/m2/year
  • According to PHPP

Water management

    Irrigation system that can save up to 70% water, german technology from ECORAIN. (https://www.ecorain.com/)

Health & Comfort

    At the moment we are collecting information about temperature and humidity in the house.

Product

    LIAPLAN ULTRA 08

    LIAPLAN STEINE

    Gros œuvre / Structure, maçonnerie, façade

    Uv= 0.08 W/(mK) - Dimensions: 24,8 x 36,5 x 24,9
    It's made out of clay and it's not burnt during its fabrication process.

    We decided to use a material which can be produced in our regions (bricks made out of clay). For this house we imported all the bricks from Germany, but at the moment we are looking for manufacturers to start producing the bricks in Brazil.

Construction and exploitation costs

  • 68 000
  • 68 000
  • As we had to import everything from Germany (even the bricks) the cost was around $ 68.000 euros (R$ 340.000,00 reais – Brazilian Currency).

Urban environment

The building was built on the site of the construction training school for the construction industry, SENAI-RN.This school is located in the Northern Zone of Natal City, a region that is predominantly low in purchasing power.

Building Environmental Quality

  • indoor air quality and health
  • consultation - cooperation
  • acoustics
  • comfort (visual, olfactive, thermal)
  • energy efficiency
  • products and materials
The house is located at SENAI, which is a school focused on developing construction labor (from Brick layers to Construction coordinators). This pilot project will be used to spread Passive House technologies:  it will serve as a seminar room for hand labor, engineers, architects and anyone who is curious about it.

We also want to use this building to convince local manufacturers to produce the required high performance components. This will have a social impact, with teh creation of new jobs and knowledge sharing.

Contest categories

Energy & Hot Climates

Energy & Hot Climates

Low Carbon

Low Carbon

Health & Comfort

Health & Comfort

Users' Choice

Users' Choice

Green Solutions Awards 2019 - Buildings


Author of the page

  • Camille Sifferlen

    Project Manager


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