Smooth and profiled metal components are frequently used to execute roof or wall claddings. Alongside the classic trapezoidal sheet, individual solutions are also frequent. Metal products and construc

Other tendons include special prestressing components, e.g. for realising innovative construction techniques based using prestressing systems, also in combination with other manufacturing and reinforc

For external post-tensioning, the tendons lie outside the cross-section of the concrete member, but inside the envelope of the structure. These post-tensioning systems are used for prestressing concre

For internal unbonded post-tensioning, the prestressing tendons are arranged in a duct filled with a special corrosion protection system. These post-tensioning systems are used for prestressing concre

For internal bonded post-tensioning, the tendons are arranged in a sheath (tendon duct) which is grouted after the prestressing force has been applied. These post-tensioning systems are used for prest

This work area covers load-bearing plastic elements for swimming pools and water slides, in particular elements made of fibre-reinforced plastics. Plastics construction

A sandwich panel consists of two faces and a supporting core. The supporting core is made of a thermally insulating material. It is connected to the two faces via an interference fit such that the thr

Reaction resin concretes or reaction resin mortars are used for strengthening and repairing timber structures, where applicable in combination with textile-reinforced rebars. Timber construction

Prestressing steel bars are used in various prestressing systems for concrete structures. Prestressing steel bars are manufactured in hot rolling mills (by quenching, cold-drawing or additional temper

Prestressing steel strands are used for prestressing structures. A prestressing steel strand is made from a number of wires twisted together in the same direction and with the same lay length. The str

Prestressing steel wire is used for prestressing concrete structures. Prestressing steel wire is made of wire rod which is either manufactured by cold-forming and subjected to a finishing thermo-mecha

Membranes for use as roof or wall underlay are installed underneath the roofing of pitched roofs or underneath the external wall cladding. They serve as an additional rainproofing measure to prevent t

Flexible sheets for concrete waterproofing are used as an additional waterproofing measure for waterproof concrete systems. For this, the flexible sheet is inserted into the formwork prior to concreti

Joint sealing tape is used to seal joints between windows and facades or facade joints for protection against wind and driving rain. It is usually compressible to compensate for temperature-induced fa

Liquid applied roof waterproofing kits are usually multi-component systems and are applied in liquid form in multiple layers. After curing, they form the roof waterproofing. Waterproofing of buildings

Waterproofing slurries are used for waterproofing of buildings. Differentiation is made between mineral-based waterproofing slurries (rigid or flexible) and polymer-modified thick coatings. In additio

Drainage systems serve to drain rainwater or surface water from buildings in a defined manner. They are used below roof vegetation or are installed below ground around structures. There are linear and

Bridge deck waterproofing protects the bridge structure and/or any components or structures underneath it from water ingress. Bridge deck waterproofing usually consists of multiple layers, such as a p

Polymer-modified bitumen thick coatings are used for waterproofing elements in contact with soil. Waterproofing of buildings

Where necessary, penetrations are subsequently sealed against water ingress, e.g. penetrations for roof installations or for cable or pipe penetrations in basement walls; subsequent sealing of formwor

Liquid polymers are used for waterproofing of buildings. The waterproofing system can feature other components (e.g. reinforcing inserts, sealing tapes and collars) in addition to the liquid polymer.

Pipes for the conveyance of liquids hazardous to water are executed with special inner coatings or linings to make them liquid-tight. Inner coatings and linings for pipes and tanks for liquids hazardo

Chimneys serve to discharge flue gases into the outside air via an outlet above roof level. They must be designed in such a way that no flue gases can escape into living areas and the surrounding buil

Measures for ground improvement are carried out prior to the start of construction work to increase the load-bearing capacity of the ground locally or for larger areas. The aim is to improve the soil'