Fire-retardants serve to improve the reaction-to-fire performance of solid timber or wood-based materials treated with them. Through treatment with the fire-retardant, the solid timber or wood-based m

Fire-protective fabrics coated with an intumescent material are used to wrap electrical cables and services to improve their reaction-to-fire performance and/or to impede the breakout and spread of a

Fire-resistant glazing is a non-load-bearing building component, usually consisting of one or more translucent elements, a frame and fixings, seals and fasteners which meet specific fire-resistance re

Sanitary appliances refer to those parts of a sanitary installation through which accumulating rainwater, foul or waste water is fed into the property drainage system (e.g. WCs, urinals, showers, bath

Non-return valves serve to prevent backflow of rainwater or wastewater from the connected sewer system into the parts of the property drainage system lying below the backwater level. Equipment for dra

Sewage lift stations are used to pump sewage from below the backwater level upwards so it can be drained via the public sewer system. Sewage lift stations usually have cutting devices for reducing the

These special thermal insulation products may be used as thermal insulation or substitutes for masonry facing and thermal insulation on stationary heating appliances assembled on site (e.g. stoves and

In ventilation units using heat pump technology, the ambient heat, e.g. the heat from the earth or the heat from the outside air, is used for space heating. Common variants include: ventilation unit w

Flue gas heat exchangers transfer the thermal energy from the heating appliance flue gas to the heating water. This increases the efficiency of the heating system. Heating appliances, chimneys

For accessories in the field of heating appliances that due to their innovative functions have not yet been covered by technical specifications, regulatory verification of fitness for use/application

A single-room heating appliance is a heating appliance which serves to heat the room in which it is placed or installed. Heating appliances, chimneys

Supply ventilation units serve to supply indoor spaces with filtered and possibly preheated outside air. Exhaust ventilation units serve to remove exhaust air from indoor spaces. Ventilation

Ventilation units with heat recovery serve to supply and remove air from indoor spaces while transferring the residual heat from the exhaust air to the supply air via a heat exchanger. Ventilation

Single-room ventilation units ensure a controlled air exchange between the building interior and the outside environment which is independent of the ventilation behaviour of the occupants. Ventilation

A prefabricated stair system consists, e.g., of steps, landings, stringers, handrails, balustrades and fasteners. The following stair systems are distinguished: stairs supported by load-bearing bolts,

Pipes, fittings and inspection chambers are parts of rainwater or waste water drains for property drainage. They serve to ensure the safe discharge of surface water and/or waste water from the propert

Connectors (clamp connectors and/or couplings) for drains are designed to connect pipework parts such as pipes and fittings permanently such that no waste water can escape from the joints. In the case

Sealants for drains serve to prevent, in connection with pipework parts such as pipes and fittings, the leakage of discharged waste water. In the case of underground drains, the sealant also ensures t

Trenchless rehabilitation techniques are increasingly being applied in wastewater engineering today. For the rehabilitation of underground supply pipes and drainage pipes, techniques such as lining wi

Inner linings are prefabricated elements used for on-site lining of drains and manholes. They usually serve to improve corrosion protection. Inner linings must be fixed durably and tightly to the drai

Infiltration elements form part of the property drainage system. They serve to store or retain rainwater. If infiltration elements are used on a property, it must be ensured that no dangers to the adj

Central heating appliances ( Sammel-Feuerstätten ) are heating appliances that heat a medium (usually heating water) and provide warmth to a building via the ductwork and radiators. They are not to be

Thermoplastic moulding compounds are used in a variety of ways to manufacture semi-finished products and construction products. They are used, for example, in the manufacture of bulk silos, cesspits a

Filling systems are composed of branched filling lines (pipes) and are used to fill several tanks of a heating oil system or diesel storage system simultaneously (battery installation). Plastic tanks,

Plastic pipes are especially suitable for conveying certain liquids hazardous to water because they often have a more favourable corrosion behaviour than metal products and hence are resistant to vari