Technical definitions and explanations of terms

A possible form of proof of usability.

General building inspectorate test certificate (abP) / general building inspectorate approval (abZ) for the application of a type of construction

"Common rooms are rooms that are intended or suitable for people to stay in on a more than temporary basis" - (§§ 2 Para. 5, 47 MB0). They must meet the requirements set out in § 47 MBO.

Each federal state decides whether and to what extent the model regulation is adopted in the respective federal state law.

Introduced German regulations, regulated the trade and placing on the market of European construction products until 31.06.2013.

Replaced the Construction Products Directive on 01.07.2013 and is valid throughout Europe.

The German Institute for Building Technology is a joint federal and state authority based in Berlin. The main task of the DIBt is to issue national approvals for non-regulated construction products and types of construction and to issue European Technical Assessments (ETA) in accordance with the EU Construction Products Regulation.

Particularly slip-resistant and ageing-resistant elastomer compound specially developed for DOYMA. This compound prevents friction-reducing substances, e.g. mineral oils used as plasticizers, from causing the sealing insert to slip.

(DOYMA Diameter Extension) The system is used to seal media lines over a wide range of dimensions without tools. It can be adapted to different pipe and cable diameters using rubber modules of different sizes that can be extended on both sides.

(Double Profile System) Name for the double-sided, asymmetrical profiling of the steel rings on the inside of the sealing inserts developed by DOYMA.

Water that exerts hydrostatic pressure on the waterproofing.

• Corresponds to stress class 1 according to the WU guideline
• Corresponds to water exposure class W2-E "Pressing water" in accordance with DIN 18533

First floor

European Technical Assessment (ETA), proof of the technical usability of construction products for which no harmonized European standard exists. In the area of fire protection penetration seals, the existence of an ETA is not sufficient proof of usability; instead, a national proof of usability is required.

European Technical Assessment: see ETA, but according to the Construction Products Regulation instead of the Construction Products Directive.

Indicates how long a component or type of construction offers resistance to fire. It is subdivided into the legal building code terms (fire-retardant, highly fire-retardant, fire-resistant) and the building product-related terms (e.g. R30, R60, R90). The previous type-related classification according to DIN 4102 is increasingly being replaced by the European standardized fire resistance classes according to DIN EN 13501 (e.g. EI90).

Describes the following property of a gasket insert: Tight against all gases that do not attack the material (e.g. air, nitrogen, inert gases, etc.).

A risk-oriented classification of a building, in particular according to size, height and number of utilization units in accordance with building regulations.

Self-contained construction services such as heating, earthworks, forging work.

Braunschweig Materials Testing Institute for the Building Industry

(Integrated Torque Limiter) Always guarantees the correct torque when tightening. Nuts specially developed for this purpose separate quickly and reliably at a defined torque.

Basement

Plastic-modified bitumen thick coating

Health assessment of plastics and other non-metallic materials in the context of the Foodstuffs and Commodities Act for the drinking water sector.

Lightweight partition wall of the stud-frame type, with a steel substructure and cladding on both sides comprising fire-resistant plasterboard or non-combustible cement- or gypsum-based building boards. These walls may be erected in accordance with the requirements of DIN 4102-4 or in accordance with the manufacturer’s specific certificates of suitability.

Model building regulations, basis of the individual building regulations of the respective federal states

Metal pipes that are routed through a fire-resistant component and are connected to plastic pipes on one or both sides of the fire-resistant component.

(Model) wiring system directive for wiring systems in escape routes, the routing of cables through walls and ceilings and the functional integrity of electrical wiring systems in the event of fire.

Materials testing institute or materials testing office, independent, usually state testing laboratory, for the purpose of testing materials, building materials and types of construction.

Interior rooms in which water accumulates in such quantities due to use that floor drainage is required to remove it. Bathrooms in residential buildings without a floor drain do not count as wet rooms. These are referred to as wet rooms.

Utilization unit: an area enclosed from other rooms or utilization units by room-enclosing components.

Utilization unit: an area enclosed from other rooms or utilization units by room-enclosing components.

Exerts no or only slight hydrostatic pressure on the waterproofing.

• Corresponds to stress class 2 according to the WU guideline
• Corresponds to water exposure class W1-E "Soil moisture and non-pressing water" and W3-E "Non-pressing water on earth-covered ceilings" in accordance with DIN 18533

(abbreviation SFZ) Consist of cement reinforced with synthetic fibers. Special feature of this material: almost the same expansion coefficient as concrete.

(Soft Tight System) Solves the sealing problem with highly structured pipe surfaces with flying colors: A sealing insert that reaches deep into the grooves of the pipe surface with a soft butyl tape and seals it reliably and permanently.

Structures that are not watertight must be protected against water ingress by means of waterproofing. This waterproofing is carried out in the form of a sheet, trowelable or liquid compound and thus results in a skin waterproofing. As the material bitumen plays a major role here, these seals are also referred to as a "black tank".

Always guarantees the correct torque when tightening. Specially developed system indicates the correct torque through noticeable resistance when tightening the screws.

Form used by the contractor to confirm that a construction product has been installed in accordance with the abP/abZ.

As there are currently no harmonized European standards, national verifications are required for fire protection cable penetration seals (general building authority approval abZ, general type approval ABG, general building authority test certificate abP). An ETA alone is not sufficient.

Waterproof or water-impermeable structures do not require additional skin waterproofing. These include, in particular, structures made of waterproof reinforced concrete (waterproof concrete). These structural waterproofing systems are also known as "white tanks".

Water-impermeable concrete

Approval in individual cases, building product or type of construction approved by the supreme building supervisory authority of the respective federal state that is not listed in Building Rules List A and for which there are no introduced technical building regulations and no abZ.

In accordance with DIN 18195/DIN 18533, single-layer, loosely laid geomembranes must be edged with permanently compatible supports arranged on both sides. The supports can either be made of the same material as the geomembrane or of elastomers compatible with the material.