D 105

In 2018, BASF’s D105 office building was the first mixed-use building (new building for office/administration and training) in the state of Rhineland-Palatinate to be awarded the platinum standard by the DGNB.

This certification requires buildings to meet high standards in construction, use and demolition. The DGNB system takes into account all major aspects of sustainable construction across the entire life cycle of a building. It covers six areas, including ecology, economy and technology.

Floor and wall systems for various applications

The Master Builders Solutions® flooring systems meet the toughest requirements in terms of durability, comfort and hygiene. An area of around 2,700 m² was coated with the tough polyurethane-based system MasterTop 1324 in the corridors and storage areas, while the highly resistant MasterTop 1273 S epoxy resin was used in the technical rooms.

The break and socializing areas were coated with MasterTop 1325 elastic polyurethane flooring to improve walking comfort and design. The sanitation facilities use both the anti-slip system MasterTop 1325 R and the MasterTop WS 300 PU wall coating, which are connected without joints and ensure both excellent hygiene and a holistic room design. By ensuring low emissions, the MasterTop solutions help create a healthy interior climate.

Ucrete polyurethane concrete was used to create an extremely durable surface with minimal joints across 1,400 m² of heavily used flooring in the work and storage spaces, as well as in the kitchen and dishwashing areas of the building. Compared to the originally planned tiled flooring, Ucrete offers several ecological and hygienic advantages and fulfills the requirement for a watertight surface protection system without joints. Because the system transfers neither tastes nor odors and is as easy to clean as stainless steel, it is perfectly suited for open food processing areas.

Green Sense® Concrete

The shell of the D105 office building was constructed using Green Sense®Concrete technology, which ensures the sustainable use of resources in the production and processing of concrete. It allows manufacturers to produce concrete in a cost-effective way that also improves load capacity, processing properties, durability and environmental friendliness. The three-part package covers the optimization of the concrete recipe by BASF’s experts, the use of high-performance concrete plasticizers such as MasterGlenium and a life cycle analysis of the concrete mixture. This analysis makes it possible to record the concrete’s economic and ecological performance criteria compared to a conventional concrete mixture.

Range of materials for exterior insulation

D105 features flat roofs insulated with boards made of Neopor®, for which BASF produces the raw material. The material’s low thermal conductivity meets the demanding energy requirements for the building, reduces CO2 emissions and lowers costs. Its high compressive strength and relatively low weight are also beneficial for the structural and stress analysis. The incline components made from Neopor® allow for greater design freedom on the roof, removing the need for a heavy sloping concrete layer. Furthermore, Neopor® insulation materials absorb virtually no water, making them a good basis for planted flat roofs.

Styrodur® was used for the insulation beneath the base plate and for the walls in the new building’s basement. The extruded polystyrene hard foam (XPS), which is now approved for use in areas at risk of earthquakes, helps reduce CO2 emissions by ensuring excellent thermal insulation.

Two elements on the outer facade were insulated using SLENTEX®, a new high-performance insulation material. SLENTEX® is a non-combustible material made from inorganic aerogel which is easy to process and provides highly efficient insulation. With a lambda value of less than 19 mW/(m_K), SLENTEX®has a much lower heat conductivity than comparable insulation materials.

Coatings and pigments for demanding surfaces

The facade panels were coated with RELEST® Powder F HWF, a weatherproof system that can withstand extreme punishment from the elements. Outdoor weathering tests prove that it is around three times more resistant than a conventional polyester system. Furthermore, the RELEST® Powder F HWF system only requires cleaning every two years, allowing building owners to save on process costs.

The matte gray powder lacquer used to coat both the facade panels and the window profiles on the office building is based on pigments from BASF. The base powder was formulated using the Heliogen® Blue K 7090 pigment, which offers excellent lightfastness and weather resistance. Alongside this, the pearlescent pigments Mearlin® Star Pearl 139S and Mearlin® Bright White 139X give the surfaces an elegant appearance.

Installation of highly flowable concrete

The concreting work for the floor slab of BASF SE's new D105 office building in Ludwigshafen, Germany, used highly flowable, easy-to-compact concrete with the consistency class F6. Construction company Lupp was thus able to finish pouring the concrete within a shorter period of time and with significantly reduced levels of noise emission, using significantly less personnel and without vibrators.