,, Oh yes, I absolutely believe that demolition and building is possible. But then you have to want it and really go for it. Now all the goals that are set are a bit non -obligation and not arranged by law. That makes it difficult, “says director Ing. Gaby Foekens of Foekens Demolition combination from Zaandam.
Family business
“With our family business it all started with a client who said:” Gaby, we want sustainable and circular, how do we tackle that? ” Now demolitioners have traditionally been busy circularly, but only for the items that immediately yielded money. It was an eye -opener for us and a challenge, in which we finally found our way. ”
Gaby Foekens: “We as demolitioners have traditionally been busy circularly.” © Duravermeer
For 39-year-old Foekens it was more than an assignment. ,, I started to delve into it and then I did research for my studies at the Hogeschool Utrecht into the way in which circular demolition in our country can become the norm. Because it is much more than throwing everything flat, because almost all materials are reusable. Concrete, wood, steel and glass. But also buildings where good items are left behind, such as carpet tiles, insulation material, frames, doors, etc. Each project has potential, but for the time being there is no legislation, only objectives such as in the Raw material agreement. But to really move the market, there must be an obligation to use, for example, 5 or 10 percent circular materials or to map demolition flows. ”
,, With us the button is completely over. We no longer demolished to earn much more, but to get materials as high as possible on the ladder for reuse and upcycling, “says Foekens.” In addition, we even give things away for free foundations, carpet tiles to status holders or insulation blankets for energy poverty. We have carried out various circular demolition projects, such as police, schools and, for example, schools and, for example, schools and schools and, for example, schools and schools and, for example, schools, and for example, schools, and for example, schools, and for example, schools, and for example, schools, and for example, schools, and for example, schools, and for example, schools, and for example, schools, and for example, schools, and for example, schools, and for example, schools, and for example, schools, and for example, and for example, schools, and for example. We report what is easy to do with it, but it is so cool to see how happy, and that is not only, and that is not only, and that is also a course, is also proud. You.
Taco director of Hoek of the EIB: “Fully circular is a bridge too far.” © Matty van Wijnbergen
Director Taco van Hoek of the Economic Institute for the Construction (EIB) questions his question. ,, I understand that you want to put down some ambition. But of course it must be done with a sense of reality and know the consequences, otherwise you will be disappointed every time. I have called that a defeat strategy. You can see that now, with the pursuit of 50 percent circular in 2030 and even 100 percent in 2050. But if you know that we build around 70,000 homes a year and demand 10,000, everyone will understand that this will not work. At the macro level, circular construction is therefore difficult and moreover it is much more expensive. Wood, for example, a circular favorite, can cost 30 percent more if you build responsibly. Those are financially spicy choices. Completely circular is just a bridge too far. ”
Nevertheless, Van Hoek also sees positive developments. ,, Reuse of materials, such as concrete, is already common, partly due to dumping bans, but is not always seen as fully circular because it is often used in a lower quality way (eg as a granulate for roads). Progress is possible through smarter designs for dismantling, high-quality reuse and policy measures such as VAT differentiation to stimulate circular materials. A steady step -by -step improvement is feasible, but remains unrealistic. Because if you are building a house now, the materials used will only be released in 80 years – the lifespan of a house. So remain credible in your goals. “
The old fluorin building in Haarlem is circularly dismantled and transformed into luxury lofts. © Duravermeer
With the large housing developer Duravermeer, faith is indeed there. “We also recorded that in our sustainability strategy” up to Zero. ” Een van de knoppen waaraan we draaien om de CO2-uitstoot terug te dringen, is hergebruik van grondstoffen en circulair werken”, zegt Glenn Metselaar. ,,Enkele voorbeelden zijn het hergebruiken van oude betonnen liggers bij nieuwe infra-projecten zoals een viaduct in Hoog Burel, een eigen huis ontwikkeld modulair woningconcept dat volledig in hout en biobased materialen is uitgevoerd en een ‘hub’ in ‘s-Gravendeel waar we gebruikte Building materials and building elements for a new destination, we need our chain partners.
With, among other things, materials from the old button barracks, the circular The Green House was realized in Utrecht. © Ballast Nedam
In Utrecht, the former button barracks was completely transformed into the National Office De Knoop. Architectural firm Cepezed devised a solution for the open space between the barracks and the adjacent headquarters of the Rabobank on behalf of the Central Government Real Estate Agency. “That was The Green House, a completely circular building that we have put down in three months,” says Walter Van Gurp of Ballast Nedam Asset Management. “The two -storey pavilion is a ‘building kit’ and has a demountable steel skeleton, while the smoke glasses of the former Knoopkazerne originated and its reused one of them. quay in Tiel and previously used wood. ”
The restaurant/meeting room is for a maximum of 15 years. ,, But the great thing is that we can pick it up this way and relocate elsewhere in the city. This way of building is challenging and gives an extra sense of sustainability. But it is certainly not cheaper and it is therefore up to our clients whether they want it or not. Whether we achieve the government’s objective in terms of circular construction? No idea, many things are unpredictable in the construction world and we are happy if we can think ahead for a few years. But the aim is beautiful, “says Van Gurp
A greenhouse has been built on the second floor of The Green House, where the restaurant involves herbs and vegetables. © Ballast Nedam
According to Bouwend Nederland, circular construction is feasible, provided that government, market and knowledge institutions work well together. “We argue for a realistic approach,” says a spokesperson. “Time and space is needed to be able to innovate, without extra regulatory pressure. In addition, it is essential that sustainability is more important to tenders, and that there is better insight into the supply and quality of reusable building materials. And make sure that the beautiful and medium-sized business is also taken into this transition in this transition Xylino in Almere, a circular apartment complex of five floors that is fully built with wood. ”
In The Hague, people are careful at the Ministry of Housing to look optimistic ahead. ,, Only reuse of materials is not enough to work towards the purpose of a circular economy in 2050. That is why it is also being used to promote the use of renewable raw materials that grow (rapidly) grow in nature. For example, biobased materials, and promoting the use of the more environmentally friendly innovative variant of common materials. Such as concrete with a binder that can be produced with less CO2 emissions and less energy than cement. ”