Tivoli Hotel & Congress Center in Copenhagen, Denmark. Archipelago Roof Gardens in the World s most Livable City

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1 Tivoli Hotel & Congress Center in Copenhagen, Denmark Archipelago Roof Gardens in the World s most Livable City An archipelago is a small, flat and often rugged rock island typically found along the Baltic coast. And, the 86,000 ft² roof garden of the Tivoli Hotels & Congress Center in Copenhagen actually does resemble these rocky reefs. This is due to the fact that the many plant beds with their irregular contours are located like islands in the middle of the extensive pathways. A unique lighting concept means that the elaborate roof garden is an attraction for hotel and congress guests and tourists to Copenhagen even at night-time. Thanks to ZinCo green roof technology another part of this pedestrian pathway has been completed. The pathway can now be used without interruption along a stretch of approx. 1,440 ft. The Danish capital of Copenhagen is one of the most important cities in Northern Europe. It is a popular tourist destination and sea port and has been honored on a number of occasions as the Most livable city in the world. The district of Vesterbro which only a few years ago was known mainly for being a transit zone for traffic into the inner city is experiencing rapid development which is breathing new life into the area. Green areas are contributing considerably to this, one example being the green pedestrian pathway at an elevation of approx. 33 ft which starts at Bernstorffgade and continues between buildings, running parallel to the 1

2 Copenhagen canal: from the Danish Rigsarkivet (National Archives) building, which has a roof area of about 80,700 ft² and is greened with ZinCo system technology, over a landscape bridge and on to the building complex housing the Tivoli Hotels & Congress Center. This development will be further expanded towards the southwest with green areas, producing a new and attractive city center locality not far from the shopping area, the port and the famous, eponymous Tivoli Gardens that opened in Architecture creates elevations The entire complex was designed for the Arp-Hansen Hotel Group by the renowned architectural practice Kim Utzon. It consists of the Congress Center with 55 conference rooms for up to 4,000 guests and now has three hotels in differing price categories. The large congress hall is situated on the green roof between the hotels and, in terms of design and contour, it too would remind you of a rock formation. Large-scale glazed facades and partially-glazed folding walls open up this room to the outside world. Also facing in this direction are the restaurants that are on the same level in the surrounding hotels. They provide an uninterrupted view of the varied design of the green roof that reflects the natural features of Denmark: the archipelagos. 2

3 The technology beneath the green A professionally-installed and root-resistant waterproofing provided the basis for the 0 -roof area to be greened. Then, the first layer of the ZinCo green roof system Roof Garden, the protection mat ISM 50, was installed. Next was the drainage and water-retention element Floradrain FD 60, infilled with the purely mineral-based clay tile growing media Zincoblend M. This growing media allows for a high level of water retention in addition to excess water carry-off through the underlying channel system of the drainage elements. The system filter SF was installed next and was followed by layers of a mineral sub-substrate and the growing media Zincoblend I as top soil and at a total depth of between 16 and 30 in. The growing media depths vary because additional growing media is needed to provide sufficient space for the root balls in those areas where trees are to be planted. The structural design of the new building took into account the greater loads of this intensive green roof with small trees. In addition, native plants are used in the plant beds, mainly conifers, grasses and ground cover along with both perennial shrubs such as lavender and seasonal plants such as black and white tulips. Patterns and light effects on the roof A base course of foam glass gravel, approx in in depth, was used as a foundation for the pathways that account for about 60 % of the roof area. The pavement material used is China granite, elaborately laid in a Harlequin pattern. This special pattern allows for the creation of entirely irregular contours for the many plant beds that lie there like archipelagos in the sea. 3

4 Protection from floods Due to extreme weather conditions and ongoing global warming, the people in Copenhagen have frequently to deal with floods. A green roof is one way of counteracting flooding and providing relief for the sewage system. Green roofs can retain % of precipitation, depending on the type of roof. The greater part of this water is retained in the system build-up and evaporates over time and excess water runs off after a considerable delay. The intensive green roof at the Tivoli Congress Center with its growing media depths of up to 30 in retains approx % of precipitation. The extensive green roof of the adjacent Rigsarkivet building with growing media depths of at least 3 in retains about 50 %. Green roofs are strongly promoted in Copenhagen due to the wide variety of environmental benefits they offer. Living urban space With the roof gardens of the Tivoli Congress Center and the Rigsarkivet building, a cohesive chain of public spaces has been created for pedestrians and cyclists in Copenhagen, similar to the High Line in New York. Both in Copenhagen and New York the elevated park is enormously attractive and is stirring long-abandoned city districts to a totally new life. 4

5 For further information please contact: ZinCo USA, Inc. Phone: (866) Fax: (866) Photos Please cite the relevant source with all publications. File name: DK_Kobenhavn_TCC.jpg Source: Kim Utzon As per the model, the roof areas are designed such that, coming from the Rigsarkivet building over the landscape bridge a large green space opens up between the towering buildings. File name DSC_0214.jpg The garden area of the Tivoli Congress Center extends the existing pedestrian pathway to a total overall length of approx. 1,440 ft. 5

6 File name P jpg The roof is particularly eye-catching at night-time thanks to the elaborate lighting concept. File name P jpg Light figures dance over the roof at night-time shades of the eponymous Tivoli Gardens! File name P jpg The yellow climbing frames on the roof are like works of art. 6

7 File name DSC_0298.jpg Dateiname P jpg Quelle: ZinCo Bildunterschrift: The Asian-style playhouse with slide is in the Wie Kunstobjekte wirken die gelben Klettergerüste children s area. des Spielbereichs auf dem Dach. File name DSC_0239.jpg Lavender is the predominant color in many plant beds. 7

8 File name DSC_0303.jpg The granite surface is laid in a Harlequin pattern, creating the contours for the lush greenery in the plant beds. File name Neues Bild 8.jpg The black and white tulips also create a special Harlequin pattern. File name P jpg The plant islands are laid out like archipelagos in the pathways. 8

9 File name P jpg The Tivoli Congress Center provides an appealing environment to the visitor with its varied roof design File name: Aufbauzeichnung mit FD 60.jpg ZinCo system build-up Roof garden with Floradrain FD 60 Perennials, shrubs and wood Growing media Zincoblend I System filter SF Infilled with mineral Zincoblend M Floradrain FD 60 Protection mat ISM 50 Roof build-up with root-resistant waterproofing 9

10 File name: DK_Kopenhagen_TCC (10).jpg The pavement pattern allows for the creation of totally irregular contours for the plant beds. File name: DK_Kopenhagen_TCC (8).jpg China granite laid in a Harlequin pattern is used for the pavement. File name: jpg The drainage and water retention element Floradrain FD 60 installed across the entire area provides a secure foundation beneath both greened and pedestrian areas. 10

11 File name: tcc jpg The root balls of the small trees are anchored professionally to protect the trees against wind suction. File name: DK_Kopenhagen_TCC (6).jpg The Floradrain FD 60 layer, infilled with the mineral Zincoblend M, was followed by the system filter and the growing medium Zincoblend I. 11