The ambition is to obtain a BREEAM-NL certification, “New build very good” certificate for the retail function (final score 55%). To success, the cooperation of the future users, managers and owners plays an important role. The certificate is delivered by the Dutch Green Building. The most important technical, innovative and environmentally-friendly design measures of the building are: a sustainable form of energy by the storage of heat and cold in the soil in combination with heat pumps.
The energy needed to heat and cool Markthal, is generated in a sustainable manner in the building itself by using energy storage in the soil in combination with heat pumps. This results lower CO2 emissions to the atmosphere.
An information panel is available, which shows the current departure of Blaak station. Visitors are encouraged to come by public transport. This results in lower emissions of harmful substances into the atmosphere.
To stimulate the use of electric cars, some parking spaces have electric charging points. This results in lower emissions of harmful substances into the atmosphere.
BATS NEST INTEGRATED IN THE CAVITY
On the 11th floor of the west facade, four bat rooms are integrated in the cavity. The only thing you can see from this entrance is an opening of 2 cm high by 18 cm wide. The rest is concealed in the cavity. Bats sleep at different locations: some in trees, others in building. Usually, we can see the common dwarf bat, the most common species in the Netherlands. But there is a chance to see the rare two colored bat on the cavities. The accommodations have been realized on the sunny side of the building, the temperature is sufficiently warm for the bats. The surface around the opening is rough, allowing bats to grip. The rooms are suitable as a summer residence for groups of female , as a couple’s residence in autumn and as a winter residence during hibernation.
SWIFT STAYS ATTACHED TO THE WALL
On the first floor on the north facade, ten niches for common swifts are attached to the wall. You can see them. Common swift is a special species. They are in the air for a large part of their lives. They sometimes sleep and mate themselves. Only during the breeding season(May to June), they are on the niche. During the winter, birds overwintering in tropical Africa and are absent in our country. Around the end of April, they return in the same place, Steldijk in the Netherlands. These birds can reach speeds of up to 120km/h.
A common swift catches 20 000 insects per day. Aphids, flying ants, hoverflies, spiders, so all insects in the air and with not sting is consumed. The common swift is very useful for humans because of the cleaning up of the insects.
Natural resources, such as fossil fuels or drinking water, are becoming increasingly rare. In addition, it’s important to limit CO2 emissions to the atmosphere to prevent global warming. Total CO2 emissions in the Netherlands is caused by the consumption of fossil fuels to heat and cool buildings. The Dutch government has the objective to build only energy neutral buildings from 2020 onwards. In the design of Markthal, solutions were sought to reduce the consumption of resources. The use of soil energy and the lack of gas connections for heating are examples.
A separate waste process saves about 70 and 80 euros per ton, because it can be recycled immediately. The building separate construction and demolition waste, debris, wood, paper/cardboard, metal and industrial waste. Waste separation on construction is therefore profitable for the environment and easily earned.
Attention to the environment, employees and safe working, that is what a conscious builder stands for. The five pillars of conscious builders were used in the construction of the Markthal.
A construction site, based to the code of conduct of Conscious Builders, differs from a regular construction site by 5 aspects:
The following functions and gross floor areas are present in the conception:
-Shops: (20 shops and 65 market stalls)10,044m2
-Traffic areas: 2.618m2
-Storage rooms: 1.521m2
-Technology and other spaces: 258m2
-Total floor building including parking and living 96.205m2
-Land area: 12.677m2
Flats in Markthal (228) are not included in the BREEAM certificate.
-Total primary energy consumption: 275kW/m2
-Expected consumption of renewable energy sources: heating 68kW/m2 and cooling 35kW/m2
-Water consumption approx. 7.0m3 per person per year
Innovative environmentally conscious building:
The impact of the building process on the environment is minimizing as much as possible:
-Objectives and registration of the number of transport movements and the related CO2 emissions.
-Waste separation in different waste flux.
-Responsible purchase of building materials (with provenance).
In addition, this building was create in a 3D building information model (BIM), for a better coordination and to decrease mistakes during construction.
BIM (Building Information Model) was used during the construction of Markthal. One of the reasons was the good coordination in the building. BIM offers efficiency and new opportunities of collaboration.
What is BIM?
BIM is an information model used for the design and the construction of buildings which all information are integrated as an information model in databases. Usually a 3D model is part of the global model. Other information can be integrated such as rooms and parts, planning of work etc.
Why and how was it applied at Markthal?
An important reason to develop this project with BIM is the coordination of installations in the building. Houses are in an arc, it was very important to have an overview of all pipes and how they can fit on the building. In the basement there is also a large concentration of pipes with many routes. BIM developed the construction of the substructure and the superstructure 3D for this purpose. JP Van Eesteren, an installation consultant said “Our 3D model is used as a pad”.
In addition to the structural model, another task is made with an architectural 3D model, for the house separating walls, ducts, stairs, finishing floors etc During modeling, the first connection problems between construction and architecture have highlighted. Various advisors and subcontractors will use the model and a specific component will work out in 3D.
Sustainable social measures:
In collaboration with the municipality of Rotterdam, the surrounding area will be set up and an accessible parking bike will be developed. The public space is designed on an ecological way to create an added value for the environment
Assessment en credit ’s
The BREEAM process is supervised by an expert from Techniplan Advisors. The assessment is performed by an Assessor of C2N. The objective is to achieve the following credit:
MAN 1 t/m 4, 9 en 10
HEA 4, 9 en 16
ENE 1, 2, 4 t/m 8 en 26
TRA 1 t/m 5, 7 en 8
WAT 1 t/m 4
MAT 1, 5 en 7;
WST 1, 3, 5 en 6;
LE 1, 3, 4 en 6;
POL 1 t/m 5 en 7;
The table below gives an indication of the extra costs per category made for the BREEAM certificate. The sustainable measures that were already part of the building priority to the certificate, are not included here:
Management € 80,000
Health € 15,000
Energy € 160,000
Transport € 15,000
Water € 90,000
Material € 20,000
Waste € 10,000
Land & ecology € 25,000
Pollution € 15,000
Process costs € 120,000
Total € 550,000
The result is an energy efficient, more comfortable and heathier building. This leads to satisfied users and visitors.
Tips for next projects:
For more information on the sustainable measures, you can also use the information panels placed on various places on the market floor.
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