A
Assembly:
Setting up the prefabricated walls and prefabricated ceilings at the constructionsite
B
Backflow level:
The highest point for backed-up water. Generally the same as the upper edge of the street
Backflow prevention:
Device built into the waste pipes to prevent sewage from backing up
Bare ceiling:
Ceiling without floor construction
Bare foundation plate:
Foundation plate without floor construction
Batter board:
Auxiliary construction for definition of the corner points of the building by the surveyor
Bitumen coating:
Polymer-modified thick bitumen coating for sealing the cellar ("black coating")
Blinding layer:
Capillary breaking layer of gravel or crushed rock under the foundation plate
Building drainage:
Sewage pipes of PVC through the exterior wall of the cellar or under the foundation plate or foundation slab.
C
Canal connection:
Connection between an existing inspection duct and a sewage pipe
Cantilever slab:
Freely projecting ceiling component for balconies or bays, with thermal insulation or thermal isolation, depending on its use
Clear room height:
Height from the upper edge of the foundation plate to the lower edge of the concrete ceiling
ComfortPlus:
Special system for subsequent internal insulation of individual cellar rooms or the entire cellar.
Connection ducts:
Prefabricated concrete part in the foundation slab or plate, patented by KNECHT, for flexible connection of the ground floor and top floor drainage pipes
Construction management:
Expert, personal support for the construction project before, during and after the construction phase
Core insulation:
Insulation inside the triple wall / hollow wall
D
Double wall:
Another term for triple wall
Drainage:
Vertical: Conducting seepage water in front of the exterior walls into the horizontal pipe system Horizontal: Pipe system at the level of the foundation plate for conducting away seepage water that appears
Drainage flushing duct:
Used to check for correct functioning and provides a way to flush the drainage system
E
Earthquake-proof:
Special static and structural design of the cellar and the foundation slab for earthquake-risk areas; includes among other things increasing the steel inserts.
Earthworks:
Excavation of the foundation pit and refilling of the work spaces, excavation of the channels for sewage, application of a blinding layer
Electric conduits / boxes:
Preparation for the electrical installations (for cables and socket-outlets)
Element ceiling:
Prefabricated ceiling that reaches its total thickness when filled with site-mixed concrete
Entrance platform:
Concrete slab attached to the cellar in front of the house entrance
External waterproof layer ("Schwarze Wanne"):
Cellar sealed against pressing water by means of sealing sheets (especially in live-in basements)
F
Filling protection:
Protection of the external wall sealing against mechanical forces during refilling of the work spaces (e.g. insulation plates, seepage plates, membranes, etc.)
Floor-to-floor height
Cellar height from the upper edge of the bare foundation plate to the upper edge of the bare ceiling
Foundation plate:
Foundation structure the cellar is built on
Foundation slab:
House foundation without a cellar
Frost-free foundation:
Deep foundation in the exposed area of the foundation slab or plate not covered with earth
Full basement:
Full basement under the ground floor
G
Grounding rod:
Steel band for earthing the electrical installations (laid in the foundation slab or foundation plate)
H
Hollow wall:
Another term for triple wall
I
Internal cellar staircase:
e.g. a concrete flight of stairs prefabricated at the factory (underpinned or self-supporting)
Internal walls:
Bearing and non-bearing prefabricated concrete walls for subdividing spaces
J
Jointless concrete core:
Created by pouring site-mixed concrete into the triple wall / hollow wall or ceiling
L
Light well:
Protection for the cellar window in the area with earth fill. Serves to illuminate the cellar rooms
M
Membrane:
Filling protection with sliding foil and fleece Protects of the seal / external wall against mechanical forces during refilling of the work spaces
O
Oil storage room:
Collecting tray in the event of a heating oil leak
Outside cellar entrance:
Stair entrance with surrounding walls outside the cellar for direct access to the cellar from the driveway or garden
P
Partial basement:
Combination of cellar and foundation slab
Perimeter insulation:
Thermal insulation on the outside of the cellar underground
Prefabricated cellar symbol of quality:
External monitoring of the complete processing of the order
Prefabricated concrete parts:
Elements for creating a cellar that are prefabricated at concrete plants
Q
Quality management:
Quality assurance via DIN EN ISO 9001 (the highest European quality standard) internal and external quality monitoring
Quality protection:
Third-party monitoring of prefabricated part production according to DIN 1045
R
Radon sealing:
Sealing against the radioactive inert gas that occurs underground
Recesses:
Recess units installed in the prefabricated parts at the factory for heating, plumbing, electrical installations, etc. (e.g. porous concrete)
Reinforcement:
Steel inserts in foundation plates/slabs, ceilings and walls that are necessary for statics reasons
RAL:
External control of the entire order processing
S
Sampling:
Defining the details of the final cellar / foundation slab design
Sealing:
Protecting the basement against ground moisture and water in the area with earth fill
Seepage water:
Rainwater that seeps through the ground.
Slope:
Characteristic of the building lot that is conducive to implementation of living spaces or a garage
Smooth-formed finish:
Surface property of wall and ceiling components produced at the factory
Statics:
Calculation of the cellar's stability
Stratified water:
Rainwater that accumulates on top of less permeable soil layers.
T
Treenail:
Serves as a mechanical and static connection between the foundation slab and the exterior wall
Triple wall:
Prefabricated wall that is poured at the construction site with site-mixed concrete
U
Utility cellars:
Unheated spaces in the basement
W
Waterproof construction ("Weisse Wanne"):
Special type of sealing for utility cellars in groundwater
WU concrete:
Water-impervious concrete (higher-grade concrete)