Blower Door in Viladecans

Description Blower Door airtightness test to the EN 13829 (A/B) standard for the verification of whole building airtightness, as part of the deep energy retrofit of a single-family terraced home in Viladecans, Barcelona.  The house is in the process of Passivhaus EnerPHit certification and has been designed by Daniel Tigges of Tigges Architekt. Two tests …

Praxis cabecera proyecto

Blower Door

Blower Door in Viladecans

Description

Blower Door airtightness test to the EN 13829 (A/B) standard for the verification of whole building airtightness, as part of the deep energy retrofit of a single-family terraced home in Viladecans, Barcelona. 

The house is in the process of Passivhaus EnerPHit certification and has been designed by Daniel Tigges of Tigges Architekt.

Two tests were carried out: during construction and following completion. For the preliminary test, leaks were detected with a handheld smoke generator and anemometer.

The final result of N50=0.55/h, is well below the minimum requirements of the Spanish building regulations CTE DB HE-1 2019 and almost 50% lower the minimum requirements of the Passivhaus EnerPHit standard (where the limiting value for existing buildings is N50 ≤ 1/h).

Year: 2021

Location: Viladecans, Barcelona

Services: Blower Door

Blower Door test in Castellgalí

Description Blower Door airtightness test to the EN 13829 (A/B) standard for the verification of whole building airtightness, as part of construction of a single-family home in Castellgalí, Barcelona. The house is an nZEB built by House Habitat. A test was carried out during construction phase, where leaks were detected with a handheld smoke generator …

Blower Door test in Castellgalí

Blower Door

Praxis cabecera proyectos

Description

Blower Door airtightness test to the EN 13829 (A/B) standard for the verification of whole building airtightness, as part of construction of a single-family home in Castellgalí, Barcelona.

The house is an nZEB built by House Habitat.

A test was carried out during construction phase, where leaks were detected with a handheld smoke generator and anemometer.

The final result of N50=1,50/h, is well below the minimum requirements of the Spanish building regulations CTE DB HE-1 2019.

Year: 2021

Location Castellgalí, Barcelona

Services: Blower Door

Blower Door test in Llerona

Description Blower Door airtightness test to the EN 13829 (A/B) standard for the verification of whole building airtightness, as part of the construction of a single-family home in Llerona, Barcelona. The house is an nZEB designed by Divers Arquitectura. Two tests were carried out: during construction and following completion. For the preliminary test, leaks were …

Blower Door test in Llerona

Blower Door

Praxis cabecera proyectos

Description

Blower Door airtightness test to the EN 13829 (A/B) standard for the verification of whole building airtightness, as part of the construction of a single-family home in Llerona, Barcelona.

The house is an nZEB designed by Divers Arquitectura.

Two tests were carried out: during construction and following completion. For the preliminary test, leaks were detected with a handheld smoke generator and anemometer.

The final result of N50=0,83/h, is well below the minimum requirements of the Spanish building regulations CTE DB HE-1 2019.

Year: 2021

Location Llerona, Barcelona

Services: Blower Door

Single-family home in Sitges

Description Passivhaus design and consultancy, M & E engineering, and M & E site supervision, for this detached house in Sitges, Barcelona, designed by the architecture firm Intercon. The home, of 884 m2 distributed over 3 floors, is in the process of Passivhaus Classic Certification. Praxis has delivered the PHPP modelling, design of the thermal …

Single-family home in Sitges

Passivhaus design & consultancy, Blower Door Tests, M & E design, Site supervision

Praxis cabecera proyectos

Description

Passivhaus design and consultancy, M & E engineering, and M & E site supervision, for this detached house in Sitges, Barcelona, designed by the architecture firm Intercon.

The home, of 884 m2 distributed over 3 floors, 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 designed the M & E systems: mechanical ventilation with heat recovery, space heating and cooling, hot water production, plumbing, wastewater & drainage, electrical services, telecommunications, control and monitoring. Praxis has also undertaken the Blower Door testing, on-site M & E supervision and on-site Passivhaus supervision and quality control.

Year: 2021

Location: Sitges, Barcelona

Services:
Passivhaus design & consultancy, Blower Door Tests, M & E design, Site supervision

Casa A, Somió, Gijón: single family home certified as PHI Low Energy Building by Praxis

This single-family home is located in Somió, Gijón, Asturias, Spain, and was designed by
Architect Juan Ignacio Corominas, and certified as a PHI Low Energy Building by Oliver Style
from Praxis. Patricia Borràs was the Passivhaus Designer on the project.

Casa A, Somió, Gijón: single family home certified as PHI Low Energy Building by Praxis

This single-family home is located in Somió, Gijón, Asturias, Spain, and was designed by
Architect Juan Ignacio Corominas, and certified as a PHI Low Energy Building by Oliver Style
from Praxis. Patricia Borràs was the Passivhaus Designer on the project. Outer walls have 12cm
of external insulation fixed to 24cm honeycomb brick, U = 0.208 W/m2·K. The roof has 28cm of
XPS thermal insulation, U = 0.117 W/m2·K. The walls to ground of the heated basement have
8cm of insulation, U = 0.437 W/m2·K. The suspended floor slab has 15cm of insulation, U =
0.137 W/m2·K.

Window frames are Passivhaus certified Cortizo COR-80, Uf = 0.94 W/m2·K, with low-e argon
filled with triple glazing, Ug = 0.50 W/m2· K and g= 49%. Exterior roller blinds on all windows
control summer solar heat gains. A 9.2 kW Baxi PBM 10 air-source heat pump provides
underfloor space heating, as well as generating domestic hot water. A Passivhaus certified
ventilation unit, Aldes InspirAIR Side 240, provides controlled mechanical ventilation. The
Blower Door test result was N50 = 0.89 ren/h.

Pictures: Juan Ignacio Corominas

Link:

Casa A: Low Energy Building, Gijón 

Description PHI Low Energy Building certification for a single-family detached home in Gijón, Asturias, designed by architect Juan Ignacio Corominas.  The house has a treated floor area of 285 m2 distributed over a ground floor and a semi-basement. The construction system is mixed, combining honeycomb brick walls with external insulation, and a timber roof structure …

Passive House in Gijón 

Passivhaus

Praxis cabecera proyectos

Description

PHI Low Energy Building certification for a single-family detached home in Gijón, Asturias, designed by architect Juan Ignacio Corominas. 

The house has a treated floor area of 285 m2 distributed over a ground floor and a semi-basement. The construction system is mixed, combining honeycomb brick walls with external insulation, and a timber roof structure with 28cm of thermal insulation.

Window frames are aluminum, Passivhaus certified, Cortizo COR 80. 

As part of the audit, Praxis audited the calculations and design documentation presented by the Passivhaus Consultant, which include architectural and M&E drawings and reports, the PHPP calculation, the Blower Door test report, ventilation commissioning documentation and photographs of the construction process and completed building.

 

Year: 2021

Location: Gijón, Asturias 

Services: Passivhaus certification 

Casa B: Low Energy Building, Gijón 

Project Description PHI Low Energy Demand Certification for a detached single-family house in Gijón, Asturias, designed by architect Juan Ignacio Corominas. The house consists of 184 m2 distributed in a first floor and a semi-basement floor. The construction is mixed, combining rectified thermo-clay walls with SATE insulation and a wooden structure roof with 28cm of …

Casa Pasiva B en Gijón

Passivhaus

Praxis cabecera proyectos

Project Description

PHI Low Energy Demand Certification for a detached single-family house in Gijón, Asturias, designed by architect Juan Ignacio Corominas.

The house consists of 184 m2 distributed in a first floor and a semi-basement floor. The construction is mixed, combining rectified thermo-clay walls with SATE insulation and a wooden structure roof with 28cm of thermal insulation. The carpentry is Cortizo COR 80 aluminum with Passivhaus component certification.

In the audit, Praxis verifies all calculation and design documents submitted by the Passivhaus Consultant, including architectural and installation plans and reports, PHPP calculation, Blower Door test report, ventilation commissioning, work monitoring and photographs.

Año: 2021

Lugar: Gijón, Asturias 

Servicios: Certificación Passivhaus 

Casa IDONIA: Passivhaus Plus timber home in Catalonia.

Casa Idonia is a detached single-family home that has achieved Passivhaus Plus certification: the first timber home in Catalonia to achieve this certification.

Casa IDONIA: Passivhaus Plus timber home in Catalonia. 

Casa Idonia is a detached single-family home that has achieved Passivhaus Plus certification. A Passivhaus Plus building has a very high level of energy efficiency and generates more energy than it consumes in a typical year. The predicted total energy consumption for the house using the PHPP modelling tool is 7179 kWh/year, with a solar photovoltaic generation of 7815 kWh/year: approximately 8% more.

Figure 1: Total consumption and generation, calculated with the PHPP

The house has a treated floor area of 201m² and has been built with CLT (cross laminated timber) boards, made by Egoin, using radiata pine from the Basque Country. Construction with CLT allows for fast assembly times, dry construction methods and less on-site waste, and a lower environmental impact compared to traditional reinforced concrete or metal structures.

Figure 2: CLT Timber structure from Egoin, Radiata pine

Architect Emili Carrero Ramon oversaw the design, with construction carried out by Idonia Group. Oliver Style and Bega Clavero delivered the Passivhaus design, with Progetic installing the mechanical and electrical systems. The house has a compact shape and a good form factor (Aenvelope/ATFA = 2.8), with 8 cm of exterior insulation using Pavatex wood fibre boards on external walls, and an interior services cavity with 5 cm of Knauf Ultracoustic R mineral wool insulation, resulting in a U-value of 0.32 W/m²·K. The roof 18 cm of insulation (U-value = 0.20 W/m²·K) with the main objective of reducing transmission heat gains in the summer.

A dynamic vapour membrane, together with WERU Afino One PVC windows and top-notch airtightness detailing, provide the necessary airtightness to meet the strict requirements of the Passivhaus certification. In this case, a result of n50 = 0.45 air changes per hour was achieved in the Blower Door test. The airtightness was executed by Ecospai. The windows feature triple low-emissivity glazing and argon gas-filled cavities.

Figure 3: View of the south facade with pergola and sunshades

A Zehnder ComfoAir Q 450 HRV unit provides the home’s ventilation system, with high-efficiency heat recovery. The building has a Loxone home automation system. Heating and cooling is provided by an 8 kW Daikin air-to-water heat pump and fan coils for both heating and cooling. The same heat pump produces domestic hot water. A total of sisxtenn 440 Wp photovoltaic panels form a 7 kWp generator, generating the calculated 7,815 kWh/year according to the PHPP calculations.

Figure 4: Photovoltaic generator on the roof of 7,04 kWp

At Praxis Resilient Buildings, we have extensive experience in Certification, Consulting, and Blower Door tests for all types of Passivhaus buildings. If you have a project you want to discuss, don’t hesitate to contact us.

https://passivehouse-database.org/index.php#d_6832

Casa SG Costa: Passivhaus Plus in a warm climate

Casa SG Costa: Passivhaus Plus in a warm climate ¿Can you imagine living in a super comfortable home, with great indoor air quality, that generates all the energy it needs with solar panels on the roof? Can you imagine a home so efficient that it can be heated with just 2 hair dryers on the …

Casa SG Costa: Passivhaus Plus in a warm climate

¿Can you imagine living in a super comfortable home, with great indoor air quality, that generates all the energy it needs with solar panels on the roof? Can you imagine a home so efficient that it can be heated with just 2 hair dryers on the coldest winter day? Can you imagine a home that stays cool in summer thanks to external blinds, natural ventilation, and a little bit of active cooling from the air conditioning system?

Casa SG Costa: Passivhaus Plus in a warm climate

This is Casa SG Costa in Sitges, a single-family home that’s just received the Passivhaus Plus certification. Designed by Sergi Gargallo from SGarq, the home has been certified by Oliver Style from Praxis Resilient Buildings, an expert in Passivhaus buildings for warm climates.

Casa SG Costa: Passivhaus Plus in a warm climate
Casa SG Costa: Passivhaus Plus in a warm climate

With a treated floor area of 230 m2, across a basement, ground, and first floor, the exernal walls are made of “Honeycomb brick” with 10cm of high-performance EPS external thermal insulation “ETICS”. To protect the home from the scorching summer sun, the roof has a generous 20 cm of XPS thermal insulation. The windows are made by WERU, with Afino One Passivhaus certified frames (Uf = 1.04 W/m2 K) and low-emissivity triple-glazed argon filled glazing (Ug = 0.72 W/m2 K, and solar factor g = 49%). All bedroom windows have external blinds to control solar gains in summer, with large roof overhangs over the ground floor sitting room windows. The colour of the outer wall is white, like most traditional buildings in the historic centre of Sitges: this helps reflect the sun in summer and reduce indoor temperatures. Mechanical ventilation with heat recovery is provided by a Passivhaus certified Zehnder ComfoAir Q600 ERV unit, that recovers both heat (η sensible = 80%) and moisture (η latent = 68%), thus helping to reduce air conditioning loads in the humid Sitges summer.

Casa SG Costa: Passivhaus Plus in a warm climate exterior
Casa SG Costa: Passivhaus Plus in a warm climate interior

A Daikin direct expansion or “air-to-air” heat pump provides heating and cooling, and a separate compact Panasonic PAW-DHW270F “air-to-water” heat pump for domestic hot water.

Finally, 16 solar PV modules make up a 5.7 kWp roof-mounted array. According to the PHPP energy model used for the certification, in an average year, the photovoltaic installation will generate more energy than the home consumes…can you imagine that?

https://passivehouse-database.org/index.php#d_7161

Casas al gusto, Passivhaus prototypes 

Description Passivhaus design and consultancy and M & E engineering for two Passivhaus prototypes of Casas al Gusto, by Growing Buildings  These two types of detached single-family homes are designed by the architect Iván Perez, from Territori 24. The homes, with treated floor areas of 125 and 225 m2, have 1 and 2 floors and …

Casas al gusto, Passivhaus prototypes

Passivhaus, M & E engineering

Praxis cabecera proyectos

Description

Passivhaus design and consultancy and M & E engineering for two Passivhaus prototypes of Casas al Gusto, by Growing Buildings 

These two types of detached single-family homes are designed by the architect Iván Perez, from Territori 24. The homes, with treated floor areas of 125 and 225 m2, have 1 and 2 floors and are designed to meet the Passivhaus Classic standard. 

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

We have also designed the M & E systems: mechanical ventilation with heat recovery, space heating and cooling, hot water production, plumbing, wastewater & drainage, electrical services, telecommunications, control and solar PV energy production. 

Year: 2021

Location: Bages, Barcelona

Services: Passivhaus consultancy, M & E design