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What is a passive house and how is the architecture designed?

There are many reasons to build a passive house. The most important are related to the cost advantages you enjoy by building a passive house. The architecture of a passive house is designed so that the basic needs of the home owner, with respect to energy supply, are autonomously controlled. As the term "passive" implies, regulating the energy balance requires no action on your part. This capability stems from the architecture of the house. Roughly 8,000 people in Germany have meanwhile taken advantage of this architecture to build a passive house. But how does a passive house function and what is the respective architecture basically made of? The architecture is typically designed so that the outer shell of the passive house is insulated to keep the heat from escaping outside.

The passive house runs on its own

When building a passive house, a ventilation system acts to additional recover 80 percent of the heat. The roof of a passive house is designed to capture additional heat and store it until the room temperature sinks enough so that it must be released. Related studies have shown that a passive house constantly maintains an indoor temperature of more than 20°C at an outside temperature of -14°C. A passive house provides the freedom to individualize the architecture. The owner can decide whether to build the house out of concrete/brick, wood or a combination. The architecture always depends on the architect and the individual plan. However, there are several factors to consider when building a passive house.

The characteristics of a passive house thanks to its architecture

Passive houses exhibit specific characteristics that are tied to the architecture. The external building components must be extremely well insulated in addition to carefully constructing the corners, edges, joints and other cross sections. This would otherwise lead to excessive heat loss and failure of the architecture to fulfill the desired requirements. By taking these factors into account and using the right approach to building a passive house, one can expect a minimal heat loss of only .15 watts per square meter of external surface area. If you are building a house, the architecture should be designed to maximize the energy gain through the solar cells. For this reason, the solar cells on the roof of the passive house must have a southerly orientation.

To build a passive house, it should be designed such that the respective solar collectors and heat pumps supply power to the hot water system. When building a passive house and using the appropriate architecture, you can expect to significantly lower your operating costs.

Lower the operating costs

The architecture is what makes it possible for you to build a passive house and to have a complete energy system that runs on its own. While more and more people are dreaming of building a house, it always involves high costs. With the right architecture, you can build a passive house assuming that you will benefit from significantly lower monthly operating costs. This approach allows you to build to a house that runs completely on its own thanks to the corresponding high-quality architecture . Because the architecture is so well thought-out, you can build this house under the assumption that the heating balance will regulate itself. For this reason, you can assume that building a house is a worthwhile effort.

Architecture and Construction

Here you can discover new and innovative developments from the world of building design and construction.

innovations-report offers reports and articles on a variety of topics such as building optimization, modern construction materials, energy-efficient construction, natural insulation materials and passive buildings.

Latest News:

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A new way of thinking for the built environment

The Cluster of Excellence “Intergrative Computational Design and Construction for Architecture” at the University of Stuttgart aims to harness the full potential of digital technologies in order to rethink design and construction, and enable groundbreaking innovations for the building sector through a systematic, holistic and integrative computational approach.

New buildings will need to be constructed for an additional 2.6 billion people worldwide over the next 35 years. Yet the productivity of the building industry...

01.10.2018 | nachricht Read more

Supported by software, Kaiserslautern architects assemble wooden dome like a puzzle

Wood is becoming increasingly popular as a sustainable building material. At the Technische Universität Kaiserslautern (TUK), the team led by Assistant Professor Dr Christopher Robeller has developed software that calculates how, for example, complex wooden building parts can best be assembled from individual parts, similar to a puzzle. A milling machine manufactures the parts according to these specifications. They only have to be assembled afterwards. What is special: Only wood is used, also connecting elements are made of natural material. This is how the researchers recently built a dome. Construction companies could use the technology by means of apps to build quickly and sustainably.

People have been using wood for constructing buildings material for thousands of years. While the material has tended to fall behind in recent years, demand...

19.09.2018 | nachricht Read more

Construction Impact Guide

Wie lassen sich negative Auswirkungen von Baustellen in Innenstädten reduzieren? Mit diesem Thema hat sich Prof. Dr. Benjamin Bierwirth von der Hochschule RheinMain im Rahmen des Forschungsprojekts „Construction Impact Guide“ (CIG) beschäftigt und ein Wirkmodell entwickelt.

Große Baustellen in Innenstädten haben häufig Auswirkungen auf das direkte Umfeld, auf Anwohner, Geschäfte und den Verkehr. Mit diesem Thema hat sich Prof. Dr....

18.05.2018 | nachricht Read more

New, forward-looking report outlines research path to sustainable cities

NSF advisory committee assesses ongoing transformation of our increasingly urban planet

In 1950, fewer than one-third of the world's people lived in cities. Today more than half do. By 2050, urban areas will be home to some two-thirds of Earth's...

24.01.2018 | nachricht Read more

Insulating bricks with microscopic bubbles

Better thermal insulation means lower heating costs - but this should not be at the expense of exciting architecture. A new type of brick filled with aerogel could make thin and highly insulating walls possible in the future - without any additional insulation layer.

The calculation is simple: the better a building is insulated, the less heat is lost in winter - and the less energy is needed to achieve a comfortable room...

16.01.2018 | nachricht Read more

Magnetic liquids improve energy efficiency of buildings

Materials scientists of the Friedrich Schiller University Jena, Germany, develop smart windows for controlled shading and solar thermal energy harvesting

Climate protection and the reduction of carbon dioxide emissions have been on top of global development agendas. Accordingly, research and development projects...

16.01.2018 | nachricht Read more

Smart buildings through innovative membrane roofs and façades

The Cooperative Research Project FLEX-G started on June 1, 2017 under the federal construction technology initiative named ENERGIEWENDEBAUEN funded by the German Federal Ministry for Economic Affairs and Energy (FR 03ET1470A). The main goal of the research project is to investigate technologies for the manufacturing of translucent and transparent membrane roof and façade elements with integrated optoelectronic components. The focus lies on a switchable total energy transmittance (often referred to as the solar factor or solar heat gain and “g-value” in Europe) and on flexible solar cell integration to significantly contribute to both energy saving and power generation in buildings.

Solar modules and a variety of energy management systems are well established in small and large buildings to optimize their energy balance both by generating...

31.08.2017 | nachricht Read more

Concrete from wood

Researchers from the National Research Programme "Resource Wood" have developed a type of concrete that largely consists of wood. The building material offers the construction industry new possibilities and is based in large part on renewable resources.

Houses can be made of wood, as they were in the past – or of concrete, as they are today. To build for tomorrow, the two building methods are being combined:...

05.07.2017 | nachricht Read more

Modular storage tank for tight spaces

It takes large thermal storage tanks to heat apartment buildings highly efficiently. To install them, they have to fit through standard door openings in existing buildings. The BINE Projektinfo 3/2017 “Large storage tank developed for small spaces” introduces a model that makes this easy. It consists of multiple modules and has lower heat losses than the cascade storage systems previously used.

The thermal storage tank is not fully assembled until it reaches the boiler room

16.03.2017 | nachricht Read more

Smart homes will “LISTEN” to your voice

The EU project “LISTEN” creates a robust, hands-free speech control interface for smart home systems. During the recent project review meeting, the partners from Germany, Greece, and Italy demonstrated a real-time, matchbox-size, smart-home-specific natural voice interface to web services. “LISTEN” bridges the gap between microphone array networks, signal processing and speech recognition.

Wouldn´t it be convenient to control heating or cooling, lighting, and media anywhere in your home by just using your voice, without any device in your hand?...

17.01.2017 | nachricht Read more
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Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: MOF@SAW: Nanoquakes and molecular sponges for weighing and separating tiny masses

Augsburg chemists and physicists report how they have succeeded in the extremely difficult separation of hydrogen and deuterium in a gas mixture.

Thanks to the Surface Acoustic Wave (SAW) technology developed here and already widely used, the University of Augsburg is internationally recognized as the...

Im Focus: Better thermal conductivity by adjusting the arrangement of atoms

Adjusting the thermal conductivity of materials is one of the challenges nanoscience is currently facing. Together with colleagues from the Netherlands and Spain, researchers from the University of Basel have shown that the atomic vibrations that determine heat generation in nanowires can be controlled through the arrangement of atoms alone. The scientists will publish the results shortly in the journal Nano Letters.

In the electronics and computer industry, components are becoming ever smaller and more powerful. However, there are problems with the heat generation. It is...

Im Focus: First-ever visualizations of electrical gating effects on electronic structure

Scientists have visualised the electronic structure in a microelectronic device for the first time, opening up opportunities for finely-tuned high performance electronic devices.

Physicists from the University of Warwick and the University of Washington have developed a technique to measure the energy and momentum of electrons in...

Im Focus: Megakaryocytes act as „bouncers“ restraining cell migration in the bone marrow

Scientists at the University Würzburg and University Hospital of Würzburg found that megakaryocytes act as “bouncers” and thus modulate bone marrow niche properties and cell migration dynamics. The study was published in July in the Journal “Haematologica”.

Hematopoiesis is the process of forming blood cells, which occurs predominantly in the bone marrow. The bone marrow produces all types of blood cells: red...

Im Focus: Artificial neural network resolves puzzles from condensed matter physics: Which is the perfect quantum theory?

For some phenomena in quantum many-body physics several competing theories exist. But which of them describes a quantum phenomenon best? A team of researchers from the Technical University of Munich (TUM) and Harvard University in the United States has now successfully deployed artificial neural networks for image analysis of quantum systems.

Is that a dog or a cat? Such a classification is a prime example of machine learning: artificial neural networks can be trained to analyze images by looking...

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