housing – Schoemann

15/07/202514/07/2025

All electric now

The shift over to the “All electric society” is easiest in sunny states like California in the USA, Africa or Southern Europe. For other regions of the globe not only the production of energy through the sun is a bit less abundant, but the storage of the sun’s energy production for deferred use is the next challenge. Countries of the globe near the equator have to balance 12 hours daylight with 12 hours night, countries far from the equator have to balance additionally more long-term between short winter days and long summer light.
Different energy storage solutions have to be envisaged.
On a daily basis or even weekly basis, battery energy storage systems (BESS) can do the trick. These systems become more costly for high capacity, longer duration storage. Battery size and price quickly become an issue. The number of electric vehicles (EVs) that have this more intelligent BESS is rising. This makes it possible to eventually use this storage capacity, if your car is sitting around your home or office for most of the time anyway. To make the “all electric society” function 24 hours, energy storage has to be planned at the same time as production and consumption patterns. The all electric prosumer will be the de-central “pro-store-sumer” in the 21^st century.

30/06/202529/06/2025

Home financing

For most people the biggest investment decision during their entire life course is the decision how to finance their home. The calculation of the costs of a bank loan over 10, 15 or 20 years to finance the acquisition of a home is a necessary part of basic financial literacy. The contract of monthly installments over years, considering economic uncertainties like inflation and interest rate payments, necessitates some basic knowledge of calculus and maybe the use of a spreadsheet to prepare payment plans with different scenarios. According to the Wall Street Journal of 2025-6-25 many home owners in southern states “slipped under water” in recent months in the USA. In short, buying a house when they are most expensive with a high interest loan and little down payment puts you at high risk if the prices for homes decline, for example like in a recession or stagnation. You can find yourself in the situation that the mortgage you have to pay suddenly exceeds the value of your home at actual prices. It is really important to be aware of the overall economic situation and risks of changes, like interest rate or inflation spikes due to a changing policy on tariffs. Reading and learning about financial risks should really enter into the school curriculum, but not left to maths classes as this will frighten off many students to take this topic seriously enough.

29/06/202528/06/2025

Home Leaks

When did you last think about leaks in your home?
Usually we associate leaks with water leaks, or the heating system leaking somewhere. In the 21st century leaks at home are more importantly the leaks of your home security, especially your email, digital and cloud services which are at risk. You may test your favourite AI system to advice you on your risks for digital leaks, but we know little whether these systems are yet another dangerous port of entry into your home or privacy themselves.
There is a helpful tool to find, whether your email has been hacked or distributed widely already for potential thefts of your identity. Hence, better check this from time to time using for example the “leak checker“, just like checking whether you closed your door or the water tap before leaving for vacations. As we live more and more in “virtual homes” in addition to our physical homes, checking your digital identities should become a part of our personal hygiene routine. Let’s just take a shower from time to time and change passwords regularly.

23/06/202522/06/2025

Home cooling 2

As a consequence of global warming architecture has to cater for the cooling of our homes as well. The 1st option is to keep the heat outside. Isolation is key in this respect as well. Colors outside have a long tradition in protecting against heating up due to abundant sunshine. Doors and windows ask for additional protection as well. Historically, trees have been instrumental in providing shade for homes. Greening of facades is another natural option. For a long time homeshomes have been built above an underground floor or a cellar. Originally these naturally cool rooms served as storage rooms for food and drinks. Nowadays, such basements offer additional cool space during (exceptionally) hot summer days. The distribution of cool air from basements to upper floors is an alternative way of cooling, which uses little energy. For newly built homes this is another reason to drill builders drill. Even office space has been built in this way, much appreciated during the warm seasons. (Image: Paris UNESCO headquarters office space).

22/06/202514/07/2025

Home Energy

Energy production and consumption in a home are determined by many factors. The number of persons in a household has, of course, a considerable impact on consumption patterns. The investment in home energy production can cover the basics, but is less likely to cover peaks of consumption like friends on a visit wanting to charge their electric vehicle.
In a test with a simple small scale solar panel (fixed on a balcony for example with 860W peak) it was possible to produce a full days consumption on a sunny summer day for a 1-2 person household without use of electricity for personal mobility, but hot water through heat pump provision. The potential for an own production of electricity during summer months is within reach without major behavioral changes.
Okay, digital steering of energy consumption for hot water during hours of bright sunshine and washing machine around high noon are not for everybody to program or carry through.
Digital tools complement the energy consumption at the right time. There is a lot of power in sunshine. The usual caveats of bad weather and winter months change the calculations. The return on investment or break even point needs 300 days of about 2 kWh to recover the 500€ initial costs of the solar panels. After about 3 years the initial costs are recovered and savings begin to accrue. The bridge between energy theory and practical applications is to be found in experimental setups and tests of different scenarios for the modern “prosumer” of the 21^st century.

21/06/202520/06/2025

Energetic Architecture

The link between energy and architecture is all to obvious. For at least a century we believed that energy had to serve architecture and could be relegated to second place. With global warming the overriding importance sits with energy concerns for some years to come. We spend billions to repair the bad architectural and fast growth architecture of the post 2WW era of architecture, especially the construction boom of the 60s and 70s. The driver of change in architecture has moved from the period of social architecture (60s, 70s) to energetic architecture. Energy in architecture has multiple dimensions. Whereas a century ago the shift consisted in the installation of central heating systems in the northern hemisphere of the globe at scale, in the 21st century the concern there shifts to isolation from heat (and cold) to more efficient, less polluting energy provision. Cooling houses and office spaces during extended periods and higher peeks of heat, ask for substantial revisions of existent architecture and the next generation of energetic architecture. Before long, we shall also think more seriously about the handling of water in architecture, a topic which is closely linked to energy consumption and design.
From a sociological point of view we are used to ask questions of social inequality related to this issue as well. We are on the way to move into a society of energy-rich versus energy poor households and enterprises. Financing of adaptations of housing and offices to the energetic challenges is likely to create severe additional inequalities, which exacerbate the already existing ones. If you have no money to spare, you will be unable to invest into energy savings with more distant returns on investment (ROI). At older age you are less resistant to heat waves and causes health disadvantages. If previous investments were impossible or the urgency for energetic architecture was neglected for too long, additional health inequalities shall arise.
The “Deutsches Architekturmuseum” has built an exhibition around this theme, which widens the perspective of architecture and energy. This highlights the additional concern for energetic architecture and people living or working in (modern) architecture.
(Image Trier Roman arena 2025)

17/06/202516/06/2025

Ohm … Ohm

In the 21^st century most people will interpret “Ohm … Ohm” as the exhalation in yoga (Hatha yoga). Therefore, take a deep breath, hold it for a while (twice as long) and then exhale (thrice as long), for example. Now you are perfectly set up to read about Georg Simon Ohm (1789 – 1854), the physicist after whom Ohm’s law was named. In the “All electric society” Ohm’s law still plays a fundamental role for all households. The understanding of electric circuits is quite easy, just apply the basic relationship of Ohm’s law. In a resistor the current and voltage are proportional. The sign (SI) for resistance (R in physics) of a conductor is the Greek letter Ω. The proportionality is expressed as R = V/I where V is the Voltage and I the current through the conductor. The units are Ω, Volt V, Ampere A. All you need to know additionally is the calculation of the power P in Watt W where P = V x I for example. If you want or need to dig deeper into your home electricity just study a bit of electrical technology on the basics.
In our homes, apartments or offices we can apply this 200 years old knowledge to guide the safety and energy consumption of our electric installations. Maybe with the help of a spreadsheet programme like excel etc.

16/06/202515/06/2025

Home cooling

In the summer months, in Europe, the concern shifts from heating your home to cooling your home. For generations this has been possible without use of air conditioning. A natural way of cooling has been for centuries to dig into earth to take advantage of the rather stable and cool temperatures underground. In home building this has also been a tradition for centuries to build cellars underneath a home.
Wine growing regions have used the cellar as a natural cooling facility for long and short term storage of wine. Digging into a mountain of a valley offered a natural cool storage solution for years without additional energy consumption. Modern buildings should return to this practice and gain cold from below the surface to cool buildings in the warm or hot seasons. Good isolation combined with the cool temperatures from below the surface in summer months will substantially save energy and thereby CO₂ emissions. Circulation of the cool air from below to the upper floors is the issue as well as dealing with differential humidity levels. The wisdom of previous generations in home building with no access to air conditioning (avoiding the air conditioning paradox) is likely to experience a revival in the coming years.
Coolness is the new and old wisdom.

15/06/202513/06/2025

Home extension

Most people think of home extension as some sort of extension of the roof, an additional room or the transformation of a garage into an additional room. However, the digital home requires a home extension of a different kind. In order for all rooms to be included into the digital home a range extender of your wireless might be necessary. Yes, this even includes the bathrooms, because otherwise you can no longer sing along your favourite tune under the shower if you are used to the streaming of the musical or orchestral accompaniment. Additionally, the immediate surroundings of a home with or without garden might make it necessary for your robot to mow properly or your digital letter box to send you the mail for the long awaited love letters while you out of home.
Being out of range in your home, is almost equal to not being home at all. Of course, you don’t have to automatically send an out of home message to all your contacts when you are too far away from your digital home for your digital device, but the comfort of a range extender may avoid the new “digital inequality” between adolescents in your home. Room choices are made according to wireless access points and signal strength rather than the room with the best view. Lots of new issues arise we did not even think we would have 10 years ago. Of course, we follow the suggestions of an AI chatbot that recommends the best location for us after we entered images and descriptions of the consistency of each wall into the system. Just a practical advice, install extensions out of reach of any toddler, because a sudden interruption of the connection will create very unpleasant surprises.

10/06/202509/06/2025

Home security

Digitalization has made it possible to step up home security at reasonable costs. The video surveillance of homes inside and the immediate surroundings are feasible through the use of connected cameras. The footage can reach sizable amounts of data, but intermittent recordings reduce or the AI-assisted detection of movements on a person’s property have become standard home security. Even for apartments the video enabled door bells and digital locks have improved the security level for those who are willing to invest in home security. A good neighborhood watch system is, of course, in most cases a superior solution. But neighbors change and social interaction is often reduced to minimal contact in most suburban regions. As with heating of homes, home security is also depending on what makes you feel comfortable at home. For some 20 degrees Celsius is enough and a solid mechanical lock is sufficient. Others have made very different experiences and want their digital devices directly linked to a professional security or police service. Like it or not, home security is part of the modern home just like many other digital devices or TV sets.

08/06/202508/06/2025

Rainwater Use

The use of rainwater is fairly easy to realize. Most homes in Europe and beyond have a roof drainage system in place. However, for decades the only concern was to get rid of the water as soon as possible. Nowadays, we think twice about it. The recovery and storage of rainwater for a separate use in a household has become a substantial cost saving exercise. In the Paris region in France you can expect on average 650 liters of rainwater per year per square meter. For a roof size of, for example, 70 m2 this yields about 45.000 liters per year. If you take a shower using 40 liters this allows you and your household to take 1125 showers or 3 persons almost one shower every day. Average household consumption in Paris is 120L/day, which adds up to about 44.000 liters per year for washing and toilet use. On a monthly basis with a storage capacity of 4000 liters of rainwater per adult person you should be able to manage your own consumption with your own roof drainage system. It is a rather simple use case. Maybe during dry summer months the calculation is a bit too optimistic, but the potential for a water autonomy of households in Europe is an option. In addition to the dry January, the no mow May, we shall have the no shower July next.

19/04/202517/04/2025

Owners Dispute

Renovations of housing with distributed ownerships can be a challenging experience. In Berlin you can find a few places with visible long-term disagreement about what kind of modernization should be done. More luxurious additions like balconies or triple window isolation and so on are sometimes hotly debated and contested in courts. For most buildings you cannot spot disagreements on the outside, but some constitute exceptions to this rule. One size does not fit all preferences. In a metropolitan city there is a place and a space for all such exceptions to the rule and most people after years do no longer think about such kind of diversity in preferences or budgets available for modernization. Cities put our level of tolerance to a continuous test. You probably learn to love this or eventually you leave the inner city. There are subtle differences in urban versus rural lifestyles. In the social sciences we continue to try to understand the attraction of cities as on a global scale millions of people flock to cities.

16/04/202515/04/2025

Housing renovation

The huge amount of buildings that need renovation is a task for each generation. New constructions are relatively easy to realize even to the best available standards. Particularly energy standards asking nowadays for serious isolation of buildings are easy starting from scratch. Energetic renovations of existing buildings are much more challenging and have to take into account the various stages or predilections of previous generations. Repurposing of buildings raise additional questions like transforming a family home into a representative office building. New technologies like fiberglass instead of copper cables or copper or plastic tubes instead of other hazardous materials cause additional costs and worries. The use of asbestos for interiors of previous generations has created the greatest liability for existing buildings. Technological choices of the past and also of the present (heat pump or not) have lasting consequences and sometimes even health effects. To cherish old buildings and styles is a mixed blessing as the renovation of housing confronts home renovators with more tricky challenges than building a new home. Incremental repairs might do the trick rather than all in one go renovation, however, you might enter into a situation when renovations are always on your mind. Not only the times are a changing, but homes are a changing, too.

04/04/202503/04/2025

Private Intimacy

Intimacy has been reserved for private affairs for centuries. Although in the medieval ages formally the right of so-called noble men could be very far-reaching into intimacy of families when the permission to marry was quite restrictive. The private intimacy is the central theme of the Paris exhibition at MAD (Link) « Private Lives ». The organization into 14 almost private rooms around a larger center piece on design leads us through the major topics of intimacy. Maybe as a surprise to some, the exhibition starts with the major actors of change related to privacy and intimacy, i. e. women. Opening up enclosures gave women more room for intimacy and at the same time it made intimacy a conscious choice and decision. “A room of one’s own” is an important step in personal development of children particularly with respect to one’s intimate life. Restrooms are another issue of intimacy, just consider recent adaptations tor m/f/d people. A whole set of accessories are on display which previously were intimate products or even secrets prepared for public viewing. Of course odors are part of the experience with a test space of noble perfumes. The various manifestations of sexuality has brought about a growing number of pleasure objects, which might also be criticized as a growing commodification of intimacy as well. The connected bedroom and the risk of surveillance are raised to warn on overexposure on social networks. Intimacy in prisons or community shelters closes the exhibition before the final highlight the room on “conversations with oneself”. A whole literary form of keeping an intimate journal has arisen from the conversations not intended to be shared with others, at least not during one’s lifetime. After a person’s death for some persons of public interest even their private intimate journals will be published shifting the balance between the private and public parts of intimacy. (Image below from exhibition, photo bottom left, Matisse painting on wall while in bed in old age).

30/03/202528/03/2025

Design skills

The is a huge B2C or C2B market in connection with home design and adaptations. Nowadays people are inspired by instagram, pinterest, YouTube and TikTok. Additionally, many play around with Apps to create their own images of how they would like to arrange or rearrange their home. Some have taken first steps to include measurements of their home in the design. The compatibility with professional software of the construction sector, however, is a drawback that delays or leads people to go to enterprises that take into account the prior efforts of young lay designers. It is a little bit like an own contribution in home building quite popular among new home builders to alleviate the upfront cash needed for first home acquisition. The younger generation could offer some of their “digital native” skills to bridge the gap in construction and home design. Of course, reworking and precise measurements on the location will still be required as construction has a lot of legal liability issues involved. Cooperation is a form of burden sharing to advance faster and/or with lower costs.

17/02/202517/02/2025

Greening Interiors

The greening of facades of houses is an old tradition in many western countries. The outside of a home then changes colors with seasons. The home for insects and birds feeding on them makes a small contribution to biodiversity as well. Greening interiors is a more rare instance. Of course flowers and plants can contribute a lot, but there is yet more scope to green entire walls inside your home or office.
Moss has advantages to add humidity to the air. You might like the acoustic effect as well in busy environments. Taking care of moss is not easy. Professional assistance (Link) or renting options might be a good option for office buildings. The wellness enhancing effects are also interesting for some people who susceptible to the calming effects of a more natural environment. It is a matter of care and respect for air quality that is reflected in the design using green interiors.
Circularity is another advantage of the materials. We can so a lot for biodiversity if we really wanted to even in urban spaces. Global warming will force us to think more and more, and sooner than later to make use of such innovative solutions. For the time being they remain a luxury option. For the wealthy, greening interiors is easy, it much less an option for restricted budgets and people who are obliged to focus on short-term survival. However, we have to get started with the greening of our planet again, any way.

30/11/202428/11/2024

Birds again

There are many ways to have more birds again in inner cities. Less pollution and poison are part of the solution. Second, increase the food available to birds. Some plants or vegetation is more suited than the other one. Combined with the question of cooling houses in summer and more isolation in autumn and winter, the greening of facades in cities has a simple effect to provide hiding, nesting and feeding spaces for birds. Birds will discover this vegetation as their natural habitat offering relatively safe shelter and food. It is an incredibly simple way to catch 22. Your new shelter is selective in the choice of birds that it will house. Singing birds seem to value the places most. Other predators may follow. At least in late autumn and early winter the energy rich power food is a welcome addition of the diet. Nesting in spring and summer might be another option to have more birds again. We shall need many very small steps again to keep biodiversity or bring back some of it. Birds again is a small initiative.

18/10/202417/10/2024

Forced Living Space

The „Topography of Terror“ hosted the book launch of the research project on „Zwangsräume“ (forced living space or forced homes). The cooperation of an impressive network of organizations (Aktives Museum Faschismus und Widerstand in Berlin e.V., Koordinierungsstelle Stolpersteine Berlin, Alfred Landecker Foundation, Metropol Verlag) has achieved to uncover the forced relocations of thousands of German jewish people from rented place to another one, thereby regrouping and cramping Jews into ever smaller living spaces in predetermined houses within Berlin. Through this horrible step by step expropriation and extermination terror was present and visible all over Berlin. The online documentation and data access allowed citizen science projects to accompany the research and actively contribute to enlarge the data investigated, analysis and dissemination of the findings. The continuation and extension of the project is already in preparation and seeks additional funding and volunteers. The traditional book publication helps to provide an insight into the thorough historical research which started with a more adequate definition „Zwangsräume“ than the previously used term of so-called „Judenhäuser“, since the houses had and kept a mixed population sharing the living spaces until deportations of the jewish persons forced into ever smaller living spaces before. The property of the deported persons was recovered by officials from sealed apartments and sold mostly as bargains on auctions or just redistributed among officials in need or with special merit for the Nazi-movement. This adds an intergenerational dimension to the project that is also worth looking into in the next phase of this extremely valuable project based on large online archives from original register information and other documents. (Image: The map shown below in the presentation has blue signs that have already been traced and hundreds of red signs where the histories are not yet retrieved).

11/07/202410/07/2024

Couch Cottage

As vacation time is approaching, we ask ourselves, whether to choose the comfortable couch or the remote cottage. This is the proposition of Roger-Pol Droit in “Le Monde Livres” (“Sagesse 2024: cabane ou canapé“, 28.6.2024 p.36) based on the reading of “Ma cabane sans peine” by Alain Guyard and “Philosophie du Canapé” by Stefano Scrima.
The couch stands for the lazy life or “vita contemplativa“, thinking about philosophical topics that need a certain form of laid back behaviour to allow your brain to sort out tricky questions or to ask yourself, what is, was or will be important questions. Many academics shut themselves away from the busy life outside to reserve more time for couch thinking. The usual products of this activity practised on chairs and couches is more or less digestable books. Some make a comfortable living out of this active inactivity.
The cottage approach follows another longstanding philosophical tradition associated with Dionysos. Living a simple life in a remote place, but full of life’s enjoyment allows to exalt in the dithyrambic atmosphere of the countryside.
Rather than the either, or issue: couch or cottage, I go along with the dialectics of Hegel, who forms out of thesis and antithesis the synthesis. In our example this is obviously equal to “take the couch to the cottage“, problem solved. Additionally Nietzsches version of “Die fröhliche Wissenschaft” seems to prolong the dialectic experience of going beyond the “neither, nor” dichotomy to combine both couch and cottage.
You sensed it. It will be a rather exciting summer break to pursue on the many roads to “Sagesse 2024” (Wisdom 2024).

23/08/202322/08/2023

Corbusier ZH

Realizations based on the theory of architecture by Le Corbusier are always worthy of visit. Passing through Zurich (CH) allows to discover another fine example of a villa he designed in the neighborhood of the old town. Within walking distance from the lake Zurich the spacious building allows just like the Paris example for an exhibition of art work within the villa. Horizontally stretched windows and a terrace on the roof make these villas look very modern. Rooftop bars and restaurants just stage a revival in inner cities as cool locations. Le Corbusier anticipated this long ago. Theories can have a long half value time of lasting.

The materials applied in the realizations were obviously less durable. This is the reason why the villa had been closed for renovations for many years. The reopening now shows the splendid views from inside out as well as from the outside. Colors are especially interesting in this example. Nothing is left to or build by chance. The Design language is spelled out in each detail down to door handles. An ongoing exhibition about the deterioration of materials and in some cases even toxic materials helps to understand the necessity to be aware of material science in construction. This makes visits even more informative. The confrontation of vision and sustainability becomes an additional topic also for the theory of architecture.

06/04/202305/04/2023

Architecture

Architecture is all around us. However, we rarely consider the build environment as “conditioning” feature of our life. Architecture is contributing extensively to our perception of “social space” (Bourdieu). Inner cities, suburbs or spacious residential areas have diverse impacts on our perception of, for example, security, modernity, health or sanitary sensations. The corona-crisis has made it clear to most people that a healthy environment is a very essential part of our perception of comfort. Here the psycho-social perception of living and/or working space enters into the co-creation of housing people. Technology is a big driver of change in housing, urban spaces and rural imagination. In order to avoid corona infections a new culture of working from home for the masses become a health-driven imperative. Payment without contact, home delivery of meals, food, books, medicine have changed the living style of many people. Too little movement for our bodies has caused another silent pandemic of obesity. Enough reasons to rethink architecture from a sociological perspective on it. This probably starts with speaking of architecture as architectures. By this we mean to think of architecture from its social origins, functions, impacts and perceptions. Great historical examples of architects have implicitly or explicitly formulated a social theory of architecture or space as the basis of their “concrete” realisations. The sociology of professions of architects and the many construction-related professions needs empirical foundation beyond the cliché of socialisation as artist versus technician. Still recent forms of participatory democracy as part of urban and rural planning as well as realisations. Participatory individual or community housing are likely to stay with us. People want to get involved in co-creating their living and working space as their social environment. Architecture as social process and specific layer of the network society will be the new mantra. It has always been there, implicitly. Up to us to strengthen the social discourse on architecture.