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Praxis Resilient Buildings, engineering for healthy, comfortable buildings

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Radon gas: invisible and lethal. What is it and how to prevent it?

Radon gas: invisible and lethal. What is it and how to prevent it?

Nov 14, 2022
Radon gas is a naturally occurring radioactive gas that can enter buildings. It is currently the second most predominant cause of lung cancer after tobacco.
2023, a year of challenges and achievements: 6 flagship Passivhaus certification and consultancy projects

2023, a year of challenges and achievements: 6 flagship Passivhaus certification and consultancy projects

Jan 29, 2024
We’re proud to have carried out projects in various countries, in both new-build and retrofit, promoting the development of sustainable construction and contributing to the creation of comfortable, healthy and energy efficient space.
Casa Aya Uruguay Passivhaus

Casa AYA: Latin America’s sustainable marvel combining straw bales and Passive House Standard

Oct 16, 2023
In the department of Canelones, Uruguay, a modest but groundbreaking architectural gem has emerged. Casa AYA stands as a testament to innovation, combining straw bale construction with the rigorous Passivhaus standard
Praxis takes part in the 15th Spanish Passivhaus Conference in Valencia

Praxis takes part in the 15th Spanish Passivhaus Conference in Valencia

Nov 10, 2023
Praxis will participate in 3 sessions at the Spanish Passivhaus Conference. We would love to see you and in Valencia!
El Eco Hub de Learnlife gana el Premio Low-Tech

Learnlife’s Eco Hub wins the Low-Tech Prize in the prestigious Green Solutions Awards 2022-2023

Aug 1, 2023
Learnlife’s Eco Hub, the Passivhaus Classic certified pop-up learning space located in Castelldefels, Spain, has won the Low-Tech Prize in the Green Solutions Awards 2022-2023!
Comienza Curso Praxis

The academic year kicks off in Praxis! We interviewed two of our students to find out how they got along.

Sep 1, 2023
The academic year has also started in Praxis. For this autumn we’ve prepared two Passivhaus courses we’re very excited about. We want to share with you the experiences of two of our students, who are successfully skilling-up in Passivhaus construction.
Passivhaus Mediterraneo

Passivhaus in the Mediterranean? Strategies for keeping cool in a Passivhaus on the beach 

Jun 1, 2022
A significant rise in temperatures is expected in the Mediterranean area in the coming years. Therefore, identifying and implementing effective strategies to reduce indoor temperatures in buildings and reduce the need for air conditioning is increasingly important.
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Pavelló Illa: Barcelona’s new sports hub looks good, keeps cool and saves energy

May 16, 2025
Located in the dense urban fabric of Barcelona, Pavelló Illa is a new sports centre that stands out for its sensitive integration into a complex context.
Casa SG Costa: Passivhaus Plus in a warm climate

Casa SG Costa: Passivhaus Plus in a warm climate

Mar 2, 2023
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 …
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Freshen up: active cooling with radiant ceilings in a Passivhaus retrofit 

Jul 8, 2022
The article presents an active cooling system using the supply air of the ventilation system with radiant ceiling panels, installed in a multi-residential building in the historic center of Girona, certified Passivhaus EnerPHit – Demand method.
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Passivhaus in-company training: take your team to the forefront of construction

Feb 17, 2025
At Praxis Resilient Buildings we offer specialised training for companies, tradespeople and professionals who want to deliver projects to Passivhaus standard and upskill in high-performance, sustainable construction.
Hormipresa Arctic Wall: prefabricated construction system achieves Passivhaus component certification

Hormipresa Arctic Wall: prefabricated construction system achieves Passivhaus component certification

May 1, 2022
Hormipresa Arctic Wall is a fully industrialised construction system, certified for passive houses in the warm-temperate climate zone, as the regular U-values of the exterior components are below 0,25 W/m²K and the connections meet the criteria of ‘thermal bridge free’.
Lessons learned during 10 years of Passivhaus projects

Lessons learned during 10 years of Passivhaus projects

Mar 1, 2022
Lessons learned during the design and construction of Passivhaus buildings over the past 10 years in Spain, identifying the importance of the heat loss form factor, along with successes and pitfalls related to thermal insulation, windows, airtightness, ventilation and active systems.
Keep cool and carry on: Passivhaus cooling experiences in the warm climates

Keep cool and carry on: Passivhaus cooling experiences in the warm climates

Dec 1, 2021
With rising global temperatures and increasingly frequent summer heat waves, keeping cool in Passive House buildings has become a hot topic.
Healthy home: materials and indoor air quality

Healthy home: materials and indoor air quality

Jul 1, 2021
The U.S. EPA (Environmental Protection Agency) estimates that the air in our homes is 2 to 5 times more polluted than outdoor air. After spending so much time at home during successive COVID lockdowns, the importance of living in a healthy home has perhaps become clearer than ever before.
Keys to the Passivhaus standard: what is it and how to achieve it?

Keys to the Passivhaus standard: what is it and how to achieve it?

Jun 1, 2021
The Passivhaus standard is a voluntary energy certification standard for new and retrofitted buildings, aimed at providing maximum comfort for occupants, excellent indoor air quality and near-zero energy consumption.
DHW + PV: solar PV top-up for domestic hot water

DHW + PV: solar PV top-up for domestic hot water

Sep 1, 2021
Energy consumption from DHW use is often higher than heating and cooling requirements in a residential Passivhaus. This is mainly due to the large losses inherent in storing and recirculating hot water, and because heating and cooling demands are very low.
Thermodynamic analysis of an electric underfloor heating system

Thermodynamic analysis of an electric underfloor heating system

Oct 1, 2021
The article presents the results of a thermodynamic simulation study, comparing Wood Plastic Composite (WPC) floorboards with ceramic and stoneware floor tiles, heated with an electric underfloor heating system, for both dry and wet assemblies.