Title page Underfloor system for polished screeds System information

Jointless installation of cassettes Jointless floor areas, such as polished cement or poured asphalt screeds, are the latest trend in modern interior architecture. Architects and customers value this type of floor covering design for its varied design options and its economy. Ackermann made by OBO can offer a special underfloor solution, in order to integrate access points to the electrical installation into the floor area without joints: The cassette lined body for polished screeds.

Use in polished poured asphalt screed

Poured asphalt screed is used where there are high requirements for heat protection, noise insulation and the elasticity of the floor covering. This screed type does not require drying times: The floor is ready for use shortly after laying. The components of the cassette lined bodies are made from robust metal. The hot poured asphalt screed can therefore be worked directly onto the cassette frame and the cassette lined body.

Use in polished cement screed

The underfloor solutions for polished screed floors from Ackermann made by OBO can also be used in cement screeds. If cement screeds are polished multiple times, jointless floor areas with aggregate are created. One variant of this screed type is the Terrazzo floor. Terrazzo is made up of a support layer and a decorative use layer. The use layer can be coloured with additives and designed using decorative stone mixtures to meet the specifications of the architecture. The cassette lined body for polished screeds is designed in such a way that cassettes are integrated into the floor without gaps....

Cassettes with a tube body lid are suitable for classic wet cleaning: The tube body protects the installation compartment against ingressing water. The cassettes were tested according EN 50085-2-2 for use in wetcleaned floors. The requirements of the standard are also fulfilled when the tube body is opened to let out cables. Use in polished cement screed

Cassettes with folding cord outlets are suitable for dry floor cleaning or for moistened floor cleaning with a wrung mop.

System structure of underfloor system for polished screeds The Ackermann made by OBO cassette lined body for polished screeds allows for surface-flush, jointless installation of cassettes into the floor area. This special solution for the installation of cassettes in polished floors created a lining, in which the cassette is adjusted to the specified top edge of the finished floor. The side wall of the lined body matches the processing of the surface-ready screed. The screed layer can also carry loads in the edge area of the underfloor box, as the carrying layer and the use layer are just as...

Polishing operation For screed work, the aluminium mounting protection lid is inserted in the cassette frame. The mounting protection lid is covered with screed in the edge area and is polished together with the floor area. Fine polishing takes place in the same manner of the working of edge areas. The use layer is polished exactly to the top edge of the cassette. Lined body The cassette lined body is placed floating on the mounting lid of the underfloor box. The side wall lining is 55 mm high. The height adjustment range of the cassette allows the creation of screed thicknesses between 60 and...

Mounting the duct system According to the planning specifications, underfloor boxes are mounted at the intended points in the room. The underfloor ducts form the grid between the underfloor boxes, which are adjusted to the top edge of the insulation layer. The cassette lined body is mounted floating on the mounting lid of the underfloor box. Mounting cassette lined bodies and cassettes Polishing the screed layer The mounting protection lid is polished in the first polishing operations. During polishing, it is important that the screed can be worked up to existing edges and can be polished, in...

Polishable cassette lined body for ready-to-lay screeds / Terrazzo, nominal size 9 UZD250-3 underfloor box Dimen- Dimen- Dimen- Dimen- Screed sion A sion B sion a sion b height mm mm mm mm mm Pack. Weight pcs kg/100 pcs. Item No. Underfloor junction and branch box for screed-covered underfloor installation systems. Side walls are prepared for duct widths 190 and 250 mm. Mounting lid 250-3 for GES9 Dimen- Dimension A sion a mm mm Pack. Weight pcs kg/100 pcs. Item No. Mounting lid for underfloor junction and branch box of type UZD250-3 for the installation of a installation unit of nominal size...

Polishable cassette lined body for ready-to-lay screeds / Terrazzo, nominal size 9 Pack. Weight pcs kg/100 pcs. Item No. V2A Stainless steel, grade 304 Dimen- Floor covering Floor Nominal sion h thickness height size mm mm mm Height-adjustable cassette for inspection opening, RKN, stainless steel Height-adjustable "blank" cassette for the creation of an inspection opening of nominal size 9 in dry or wet-cleaned floors. Only suitable for smooth floor coverings. Pack. Weight pcs kg/100 pcs. Item No. V2A Stainless steel, grade 304 Dimen- Floor covering Floor Nominal sion h thickness height size...

Polishable cassette lined body for ready-to-lay screeds / Terrazzo, nominal size R9 UZD350-3 underfloor box Dimen- Dimen- Dimen- Dimen- Screed sion A sion B sion a sion b height mm mm mm mm mm Pack. Weight pcs kg/100 pcs. Item No. Underfloor junction and branch box for screed-covered underfloor installation systems. Side walls prepared for duct widths of 190, 250 and 350 mm. Mounting lid 350-3 for GESR9 Dimen- Dimension A sion d Ø mm mm Pack. Weight pcs kg/100 pcs. Item No. Mounting lid for underfloor junction and branch boxes of type UZD350-3 for the installation of an installation unit of nominal...

Polishable cassette lined body for ready-to-lay screeds / Terrazzo, nominal size R9 Pack. Weight pcs kg/100 pcs. Item No. V2A Stainless steel, grade 304 Dimen- Floor covering Floor Nominal sion h thickness height size mm mm mm Height-adjustable cassette for tube body, RKFR, stainless steel Height-adjustable cassette of nominal size R9 for tube body for installation of accessories in dry or wet-cleaned floors. Height adjustment unit RKNEV2 M8 Pack. Weight PU kg/100 PUs Item No. For flush-floor height-adjustment of the height-adjustable cassette units and the OKB screed-flush trunking system. The...