On a beautiful Friday afternoon in late March, we were welcomed to Hibertad's beautiful and inspiring building in Hardenberg. With about 15 participants, we were warmly welcomed with coffee and a delicious special by both our hosts, Eberhard Dijkhuis and René Hemme.

We started with a presentation by Eberhard, followed by a tour of the Hibertad Foundation's beautiful and energy-neutral building. Eberhard is responsible for all the Foundation's activities and also has a construction company located next to the building.

Eberhard explains that the Hibertad Foundation works according to two different cycles: the Biological Cycle and the Technical Cycle. These cycles serve consumers and users. Through suppliers, manufacturers and retailers and users, biological materials and technical materials are applied. Collection takes place for both and then energy recovery takes place as much as possible.

Through two separate lines - organic construction and ecological construction - natural materials are applied in residential and non-residential construction. Important goals here are:

  • Healthy living, working and sleeping.
  • Reducing waste and emissions during the life cycle.

Much international cooperation takes place, including with the "Institut fĂĽr Baubiologie und Nachhaltigkeit".

In Hibertad's work, "sustainability" is consistently and consciously replaced by "sustainability". This definition much better reflects the mission, strategy and vision of Hibertad and Bouwbedrijf Dijkhuis.

Building biology = living environment buildings - people.

In a logical manner, the following issues are addressed successively:

  • Building site
  • Design
  • Environment - energy - water
  • Space-climate
  • Building materials

Using a number of practical examples, Eberhard deals with this in concrete terms.

There are four conditions that determine the so-called room climate. All four are of utmost importance to achieve the best room climate. Successively, these are "Air", "Temperature", "Moisture" and "Radiation". All of these must be in the right balance with each other!

In the case of "Air", there are major differences between the seasons, which presents a major technical challenge (especially in terms of material technology and design).

Even the existing building regulations do not provide good guarantees for the most optimal situation. A 10 m2 bedroom, for instance, has only 30% good air compared to what is actually needed if the building regulations are simply followed.

For a proper temperature, the manner of sunlight incidence in combination with floor materials and façade structures are of paramount importance for a good living environment. This is often insufficiently taken into account in building practice.

The application of the right insulation materials in combination with moisture is also crucial.

Natural - and fire-safe materials are necessary and of utmost importance in the application.

Eberhard reviews various building materials in practice and their properties and uses examples to give a good overview of what is "right" and actually "wrong".

In the case of radiation, it becomes clear how many sources there actually are and how little is actually known about the consequences and effects. Eberhard discusses magnetic DC versus electric DC, as well as magnetic AC versus electric AC. Last but not least, he talks about the effects of electro-magnetic waves (mobile phones) on the brain. Very importantly, Eberhard discusses the various building materials that can be used in principle. Natural materials should be preferred as much as possible. But this is sometimes at odds with cost. However, the conclusion is that natural materials in building biology and building ecology give the best results for both building impact on the user and building impact on the surroundings and the environment.

All in all, an extremely interesting and above all challenging presentation from which we learnt a lot.

For Eberhard's presentation , click here.

We then took a very interesting tour of the Hibertad Foundation building. In between, lots of questions are asked. It becomes clear what the do's and dont's are in practice. What is striking is that the building is actually one big research and testing centre and it is also clear that it fulfils a very important educational function for companies as well as schools. It is wonderful to see that the Hibertad Foundation is "firmly on the road"!

The tour was followed by a presentation by René Hemme. He is an expert in sustainable maintenance and design of sustainable energy installations for homes and buildings.

René starts with a historical overview of "Energy (use) in the Netherlands". From peat via coal and natural gas to electricity. Then he elaborates on Wind Energy with all its aspects in our country. Next, the "solar parks" and the expected (future) developments in this regard are discussed. The central question is: "Can the Netherlands switch to renewable energy?"

René then elaborates on the technology of "heat pumps". In doing so, he differentiates between "Mono source" and "Doublet source". The principle of Heat Cold Storage (WKO) is discussed in detail by René. Issues such as "summer-winter difference"; "load duration curve"; "peak load boiler" and "heat pump" are reviewed. Efficiency of "heat pump heating" and "thermal storage cooling" are practically explained and discussed. The presentation concludes with laws and regulations and "balancing". This also includes a brief mention of "solar thermal"!

What is clear is that a good control system and a building management and energy management system must properly control the various technical installations.

For René's presentation , click here.

At the end of this afternoon, we are all impressed by the added value of Hibertad Foundation, Bouwbedrijf Dijkhuis and Hemme Onderhoudsadvies. Several easily made the link between the production process and innovative developments. Due to all the enthusiasm of Eberhard Dijkhuis and René Hemme, most KIVI members did not leave the Hibertad Foundation building until around six o'clock.

More information about Hibertad? Go to www.hibertad.nl

Got your own ideas for an excursion? Contact Piet Dijkshoorn |

p.dijkshoorn1@tiscali.nl | +31 6 512 02 681

Text: Ir. Piet Dijkshoorn.

Description

Hemme OnderhoudsAdvies BV is a specialist in the design, maintenance and management in the use phase of installations. Throughout the Netherlands, we use our practical expertise to design installations and draw up maintenance plans for every real estate object, such as apartment complexes, offices, factories, schools, churches and commercial buildings.

Dijkhuis Aannemersbedrijf bv, Hardenberg has a mission "The (construction) world must change structurally" and a vision "Only by building purely and differently can we help change the (construction) world".
That is why everything at Dijkhuis revolves around (w)earth.
- human value - healthy building
- ecological value - circular building
- regional value - local building
- social value - CSR building
- added value - smart building with construction coach
Dijkhuis volhoudbaar bouwen was present as an SME company at the launch of the Climate Coalition at the Ministry of Infrastructure and the Environment.

Hibertad Foundation is an independent foundation focusing on sustainability. This foundation was set up around a sustainable building, where materials and installations are tested and sustainability is talked about. Hibertad's specific target groups are business on the one hand and youth on the other. The youth has the future and needs to become aware about this topic. But the youth can also help the 'entrepreneur of today' to tackle problems differently. The business community, and small and medium-sized enterprises in particular, hold the key to changing the world.

During our company visit with an excursion to the sustainable building, we will, among other things, become acquainted with the working methods of both companies and see with our own eyes the added value of Hemme OnderhoudsAdvies BV, Dijkhuis Aannemersbedrijf bv and Hibertad when it comes to safety, health, sustainability and product life cycle costs.

The programme will be as follows:

14.00 -14.30
Reception by Mr R. Hemme of Hemme OnderhoudsAdvies, Mr E. Dijkhuis of Dijkhuis Aannemerbedrijf bv and Hibertad and KIVI Region North

14.30 - 15.15
Presentation by Eberhard Dijkhuis on Hibertad Foundation, explanation of approach and working method. (a.o. Centre for sustainability, meeting & working, test location, inspiration sessions, think tank for sustainable initiatives, excursions for schools, etc.) Company presentation by Dijkhuis Aannemersbedrijf bv on circular building, application of natural materials and building biology.

15.15 - 16.00
Company presentation Hemme OnderhoudsAdvies, explanation of management and maintenance of WKO systems and the latest developments in the field of sustainable generation and storage of renewable energy.

16.00 - 16.30
Guided tour with explanation of the sustainable building Hibertad.

16.30 - 17.00
Closing.

Please note: Maximum number of participants is 55 persons.

Location

Molensteen 5, 7773 NM in Hardenberg

Organiser

Region North

Name and contact details for information

Ir. P. Dijkshoorn | 06- 41438072

p.dijkshoorn1@tiscali.nl