Sa Vinya: Passivhaus Plus home

ideadmin on 3 April 2024

Sa Vinya is a passive house nestled between the almond trees of the Pla de Corona valley, Sant Antoni de Portmany, Ibiza. Designed by Jaime Romano of Romano Arquitectos, the architect took his inspiration from Josep Maria Sert.

Sa Vinya: Passivhaus Plus home

Passivhaus Consultancy

Description

The house is totally disconnected from the grid and has an on-site 15.3 kWp photovoltaic array with lithium batteries. Sa Vinya is certified as Passivhaus Plus certification, generating, annually, 89% more energy than it consumes.

The construction system consists of a beam and block suspended floor slab with 20 cm of XPS insulation. The outer walls are load bearing, with 24 cm thick cellular concrete blocks, with an interior service void with 6 cm of mineral wool insulation. The roof is lightweight, with a wooden structure and 20cm of XPS insulation. The windows have 74mm timber frames with double low-e glazing and argon gas.

An excellent result of n50 = 0.42 ren/h was achieved in the Blower Door test.

Mechanical ventilation is taken care of with two Passivhaus certified Zehnder Paul Climos F200 enthalpy heat and moisture recovery units.

Space heating is by underfloor heating, powered by a VRV heat pump and hydro-kit. The same heat pump produces domestic hot water. In summer, cooling is done with wall and ducted split units.

Praxis carried out the Passivhaus design and consultancy, including energy modelling with DesignPH & PHPP, the design of the airtight layer, design of thermal bridge free construction details and thermal bridge calculations, and management of the entire Passivhaus certification process.

Links:

Pep – iPHA

Photos: Lluis Lopez Castro

Year: 2020
Location: Sant Antoni de Portmany, Ibiza, Balearic Islands, Spain
Architecture: Romano Arquitectos
Services provided by Praxis: Passivhaus Consultancy, building physics, thermal bridge calculations, design of airtight layer
Passivhaus Certification Class: Passivhaus Plus
Floor area: 214 m2
Thermal envelope area: 914 m2
Blower Door result: 0,42 n50
Heating Demand: 11 kWh/m2·a
Cooling Demand: 18 kWh/m2·a
Primary Energy Renewable consumption EPR: 53 kWh/m2·a
Final Energy consumption: 37 kWh/m2·a
Renewable energy generation: 70 kWh/m2·a
CO2eq emissions: 20 kg/m2·a

El Niu, multi-family Passivhaus

ideadmin on 3 April 2024

El Niu, Plurifamiliar Passivhaus - Exterior

El Niu, meaning the “Nest” in Catalan, is Andorra’s first multi-residential Passivhaus Plus certified building, and was certified by Oliver Style of Praxis Resilient Buildings, developed by Lluis Lopez Castro of Propietats y Gestió, and designed by Antoni Martí.

El Niu, multi-family Passivhaus

Passivhaus Certification

El Niu, Plurifamiliar Passivhaus - Exterior detalle

Description

Nestled up at 1275 meters above sea level, El Niu houses 11 dwelling units with a total TFA of 1292 m2 over 4 floors.

Heating and hot water is provided by Pichler PKOM 4 compact heat pump units, providing heat recovery ventilation, heating, cooling, and hot water generation.

The façade consists of two different steel frame systems: the Passivhaus certified Passivhaus External Wall System by Knauf Insulation, and the Archisol and Promisol systems by Arcelor Mittal.

A 37,7 kWp solar PV array is projected to generate 91 % what the building consumes, turning it into a nearly net-zero energy powerhouse that uses approximately 71% less than pre-2010 buildings en Andorra, while emitting only 5976 kg of CO2eq per annum.

Links:

Pep – iPHA

Photos: Lluis Lopez Castro

Year: 2024
Location: Ordino, Andorra
Architecture: Despatx d’arquitectura Antoni Martí
Services provided by Praxis: Passivhaus Certification, thermal bridge calculations
Passivhaus Certification Class: Passivhaus Plus
Floor area: 1.292 m2
Thermal envelope area: 2.677 m2
Blower Door result: 0,6 n50
Heating Demand: 20 kWh/m2·a
Cooling Demand: – kWh/m2·a
Primary Energy Renewable consumption EPR: 37 kWh/m2·a
Final Energy consumption: 31 kWh/m2·a
Renewable energy generation: 28 kWh/m2·a
CO2eq emissions: 11 kg/m2·a

Terrassa Haus: multi-family Passivhaus Classic

ideadmin on 27 March 2024

Terrassa Haus is the first multi-residential building to receive Passivhaus certification in the city of Terrasa, Catalonia, Spain. The project was developed by Cambolico and designed by architects Antoni Espona & Xavier Torcal. Oliver Style and Bega Clavero from Praxis Resilient Buildings carried out the Passivhaus consultancy, HVAC design and Blower Door testing.

Terrassa Haus

Passivhaus Consultancy

Consultoría Passivhaus - Terrassa Haus. Terraza

Consultoría Passivhaus - Terrassa Haus. Salón

Consultoría Passivhaus - Terrassa Haus. Habitación

Consultoría Passivhaus - Terrassa Haus. Oficina

Consultoría Passivhaus - Terrassa Haus. Exterior edificio

Description

The ground floor offers 2 commercial spaces, with a further three floors with apartments ranging from 76 m2 to 154 m2. The building has a total floor area of 1142m2 and includes a communal co-working space, bike room, gym, and communal pool.

With an existing concrete structure that had been abandoned during the economic crisis of 2007, an external thermal insulation system with EPS insulation was applied over ceramic brick and rendered, with a further 5cm of Knauf Insulation mineral wool inside in the service void. The roof is insulated with XPS insulation. Rehau PVC windows frames with argon-filled low-e coated glazing make up the openings, with Swisspacer insulated glazing spacers to further reduce heat loss.

Heating, cooling and hot water is provided by individual Hitachi all-in-one heat pumps in each apartment. Similarly, mechanical ventilation with heat recovery is provided by individual Soler & Palau Passivhaus certified ventilation units, with intake air drawn in from the façade walls and stale air extracted to the roof with shared extract ducts.

Links:

Pep – iPHA

Photos: Terrassa Haus

Year: 2023
Location: Terrassa, Barcelona, España
Architecture: Antoni Espona & Xavier Torcal
Services provided by Praxis: Passivhaus Consultancy, thermal bridge calculations, building physics, heating-cooling-DHW-ventilation system design, Blower Door airtightness tests
Passivhaus Certification Class: Passivhaus Classic
Floor area: 1.142 m2
Thermal envelope area: 1.500 m2
Blower Door result: 0,6 n50
Heating Demand: 10 kWh/m2·a
Cooling Demand: 15 kWh/m2·a
Primary Energy Renewable consumption (EPR): 60 kWh/m2·a
Final Energy consumption: 50 kWh/m2·a
Renewable energy generation: 0 kWh/m2·a
CO2eq emissions: 18 kg/m2·a

Lekunberri: Passivhaus Classic home

ideadmin on 29 August 2023

Vivienda passivhaus en Lekunberri exterior

Praxis has carried out the Passivhaus Classic certification of this single-family home in Lekunberri, Navarra, designed by the architect and Passivhaus Designer Pedro Mariñelarena Albéniz, together with Itziar Iriarte Zubiría.

Passivhaus home in Lekunberri

Passivhaus

Vivienda passivhaus en Lekunberri exterior lado 2

Vivienda passivhaus en Lekunberri exterior detalle

Vivienda passivhaus en Lekunberri interior sala

Vivienda passivhaus en Lekunberri interior sala 2

Description

Praxis has carried out the Passivhaus Classic certification of this single-family home in Lekunberri, Navarra, designed by the architect and Passivhaus Designer Pedro Mariñelarena Albéniz, together with Itziar Iriarte Zubiría.

This single-family home was designed and built using bio-construction criteria. Outer walls are made of exposed CLT panels, insulated externally with 240mm of wood fibre insulation and natural lime render. A Zehnder Q350 HRV unit provides mechanical ventilation with heat recovery. The timber window frames were supplied by Iribarren, a local manufacturer located in the Navarra region. The house achieved an impressive blower door test of n50 = 0.27 ach. A De Dietrich ALEZIO S 6 MR air-to-water heat pump delivers space heating with underfloor heating, as well as producing domestic hot water.

Links:

International Passivhaus Projects database

Spanish Passivhaus Platform (PEP) project database

Year: 2023

Location: Lekunberri, Navarra

Services:
Passivhaus certification

ICONIC: High performance sports centre, Andorra

praxisadmin on 10 January 2023

Cramea: centro deportivo de alto rendimiento

Description Passivhaus design and consultancy for a high-performance sports centre located at 2600 metres above sea level in El Pas de la Casa, Andorra. This 9000 m2 building, designed by Engitec, is in the process of Passivhaus Classic certification. Praxis has done the PHPP energy modelling, design of the thermal envelope and airtight layer, advice …

Cramea, High performance sports centre

Passivhaus

Description

Passivhaus design and consultancy for a high-performance sports centre located at 2600 metres above sea level in El Pas de la Casa, Andorra. This 9000 m2 building, designed by Engitec, is in the process of Passivhaus Classic certification.

Praxis has done the PHPP energy modelling, design of the thermal envelope and airtight layer, advice on low-impact materials, and analysis and optimisation of thermal bridges and construction details.

We’ve undertaken thermodynamic analysis of the building, using Design Builder (EnergyPlus), to assess thermal comfort and analyse the risk of summer overheating in critical zones in the building.

We have also consulted on mechanical and electrical system design, with proposals for improvements and compliance with the Passivhaus standard, to ensure efficient operation and low maintenance costs. Finally, we have provided with on-site Passivhaus supervision and quality control.

Year: 2022

Location: El Pas de la Casa, Andorra

Services Passivhaus design & consultancy, thermodynamic simulation, M & E consultancy, and site supervision

San José: 3 Passivhaus Classic Homes, Ibiza

praxisadmin on 5 September 2022

Description Passivhaus design and consultancy for 3 detached single-family certified Passive Houses in San Josep de Sa Talaia, Ibiza, designed by Mixis Arquitectos and executed by Avante. Project Management and construction management was undertaken by Martínez-Gil. Each home has a treated floor area of 270 m2, over 2 floors with a heated basement, achieving Passivhaus …

3 single-family Passive Houses in Ibiza

Passivhaus

Description

Passivhaus design and consultancy for 3 detached single-family certified Passive Houses in San Josep de Sa Talaia, Ibiza, designed by Mixis Arquitectos and executed by Avante. Project Management and construction management was undertaken by Martínez-Gil. Each home has a treated floor area of 270 m2, over 2 floors with a heated basement, achieving Passivhaus Classic certification.

Praxis did the Passivhaus design and energy modelling with PHPP, design of the thermal and airtight envelope, advice on low environmental impact materials, optimization of construction details and calculation of thermal bridges.

Our work focused on implementing passive design strategies to reduce summer overheating.

Year: 2021

Location: Sant Josep de Sa Talaia, Balearic Islands

Services: Passivhaus consultancy

LILU´s House: bio-based Passivhaus Plus

praxisadmin on 18 June 2022

Passivhaus design and consultancy, for this single-family house in Abrera, Barcelona, designed by architecture firm OMB Arquitectura and built by House Habitat.

LILU´s house: bio-based Passivhaus

Passivhaus, Blower Door

Description

Passivhaus design and consultancy, for this single-family house in Abrera, Barcelona, designed by architecture firm OMB Arquitectura and built by House Habitat.

The home has 143 m2 distributed over 2 floors, it will be the headquarters of the company House Habitat and a research unit for companies and universities. It is in the process of Passivhaus Plus certification.

Praxis has delivered the PHPP modelling, design of the thermal envelope and airtight layer, advice on low-impact materials, analysis and optimization of thermal bridges and construction details, and dynamic hygrothermal analysis of risk from moisture damage with the WUFI tool.

Praxis has also undertaken the Blower Door testing and on-site Passivhaus supervision and quality control.

https://www.youtube.com/watch?v=SJ3Fx_TfkE0

https://passivehouse-database.org/index.php#d_7032

https://www.plataforma-pep.org/ejemplos-ph/lilus-house/

Year: 2022

Location: Abrera, Barcelona

Services:
Blower Door, Passivhaus

Porta de la Morera: Passivhaus Nursing Home

praxisadmin on 10 September 2021

Description Passivhaus design and consultancy for an elderly people’s residency located in Mollet del Vallès. This 8,400 m2 building, designed by Genars and developed by FIATC Seguros via FIATC Residencias (Inverfiatc), is in the process of Passivhaus Classic certification. Praxis has delivered the PHPP modelling, design of the thermal envelope and airtight layer, advice on …

Porta de la Morera Nursing Home

Passivhaus

Description

Passivhaus design and consultancy for an elderly people’s residency located in Mollet del Vallès. This 8,400 m2 building, designed by Genars and developed by FIATC Seguros via FIATC Residencias (Inverfiatc), is in the process of Passivhaus Classic certification.

Praxis has delivered the PHPP modelling, design of the thermal envelope and airtight layer, advice on low-impact materials, and analysis and optimisation of thermal bridges and construction details.

We’ve also undertaken a thermodynamic and daylighting study of the building, using DesignBuilder (EnergyPlus & Radiance), to assess natural light levels and analyse the risk of summer overheating.

Our work has also included an audit of the mechanical and electrical systems, with proposals for improvements and compliance with the Passivhaus standard, to ensure efficient operation and low maintenance costs. Praxis has also undertaken the Blower Door testing and on-site Passivhaus supervision and quality control.

Year: 2021

Location: Elx, Alicante

Services: Passivhaus consultancy, thermodynamic simulation, daylighting analysis, M & E consultancy, Blower Door testing

ROI ELIT: Passivhaus component certification

praxisadmin on 10 September 2021

Description Passivhaus component certification of the ROI ELIT 93.2 timber window frames, by Grup-35. CálCalculation and optimisation of the thermal transmittance, Uf, of the frames according to the EN-ISO 10077 1 and UNE-EN-ISO 10077 2 standards, using the finite element simulation program Dartwin Frame Simulator Pro.Through our work, we were able to improve the thermal …

Passivhaus window frame ROI ELIT 93.2

R & D

Description

Passivhaus component certification of the ROI ELIT 93.2 timber window frames, by Grup-35.

CálCalculation and optimisation of the thermal transmittance, Uf, of the frames according to the EN-ISO 10077 1 and UNE-EN-ISO 10077 2 standards, using the finite element simulation program Dartwin Frame Simulator Pro.Through our work, we were able to improve the thermal performance of the frames. We steered the client through the certification process with the Passivhaus Institut, and in under two months, successfully achieved phB class certification for warm-temperate climates.

Year: 2021

Location: Glomès, Lleida

Services: Passivhaus component certification

Santa Coloma de Farners: Low Energy Building

praxisadmin on 1 September 2021

Description Passivhaus design and consultancy for 4 terraced houses in Santa Coloma de Farners, Girona, design and developed by the Quim Ferrer, de Ecospai. Each home has a gross floor area of around 165 m2, distributed over 3 floors, with an underground parking lot. They are built with healthy and low-impact materials, and are in …

Terraced houses in Santa Coloma de Farners

Passivhaus

Description

Passivhaus design and consultancy for 4 terraced houses in Santa Coloma de Farners, Girona, design and developed by the Quim Ferrer, de Ecospai.

Each home has a gross floor area of around 165 m2, distributed over 3 floors, with an underground parking lot. They are built with healthy and low-impact materials, and are in the process of Passivhaus Classic certification.

Praxis has delivered the PHPP modelling, design of the thermal envelope and airtight layer, advice on low-impact materials, and analysis and optimisation of thermal bridges and construction details. Praxis has also undertaken on-site Passivhaus supervision and quality control.

Year: 2021

Location: Santa Coloma de Farners, Girona

Services:
Passivhaus design & consultancy, Site supervision