All you need to know about flooring
Expertise on the subject of floor coverings with glossary and detailed advice to maintenance and functionality.
To protect floor coverings from damage and allow furniture to roll easily over floor coverings EN 12 529 specifies that Type “H“ (hard) castors should be used on textile floor coverings and Type “W“ (soft) castors should be used on resilient floor coverings. Also in accordance with the above-mentioned specification, non-rolling feet/legs on furniture and the ground contact areas of furniture must be made of "hard" materials if used on textile floor coverings and must be made of "soft" materials if used on resilient floor coverings. This means that furniture feet/legs with sliders or castors must be made of the appropriate materials and must not be sharp-edged.
Related entries: Dynamic + static loading
Selection of the right floor covering may greatly reduce the level of effort subsequently required for routine maintenance (cleaning). Another key factor here is the visual insensitivity to dirt: with floor coverings this factor is just as important as their resistance to wear. The visual insensitivity to dirt depends on the colour, pattern and also the surface structure of the floor covering. Entrance / zonal matting or gratings should be used to prevent as little dirt as possible being brought into the building. The criteria for the selection of entrance or zonal matting in terms of size, material and positioning should be tailored to the prevailing circumstances.
Related entries: Disinfection floor coverings
Testing of our resilient floor coverings is proceeded according to European Standard EN 423 / EN ISO 26987 – determination of the effect of stains – with a 2 hours effect on the floor covering. The Standard defines the procedure and the means of evaluation. In or-der to enable a practical use of the testing procedures, the chemicals to be used in the procedure are not prescribed by the standard itself.
In terms of technical feasibility and according to VOB Part C, DIN 18365 "Floor covering work" (German: Bodenbelagarbeiten), it is not possible to manufacture floor coverings free of tolerance. This applies both within a single batch and between different batches. Nevertheless, the deviations within a single batch are lower. As a result, there is a generally accepted rule within the trade that only product from the same batch may be laid within any particular room, paying attention to the ascending/descending roll numbers of the floor covering sheets. Before laying the floor covering, it is also important to ensure that production outer edges are laid next to each other after first being manually trimmed. This is also an important criterion for the use of left-over sheets and strips.
Related entries: Yellowing Linoleum
With standing fixtures such as cabinets, chairs, shelves, or similar furniture one speaks of static surface pressure. This static pressure can be calculated very simply. The total load of fixtures (in kg) is divided through the whole area of furniture legs = amount x (length in cm x breadth in cm = cm²). In practice this kind of load should not produce a surface pressure exceeding 25 kg/cm². Load-bearing capacities, e.g. from fork lift trucks, are calculated following the Hertz' formula.
Related entries: Castor chair and furnitures legs
Electrostatic requirements for floor covering can affect the body voltage / antistatic, the vertical resistance or the insulation to ground. These properties can be requested by users, national and international standards or equipment producers and must be described in the building declaration.
The objective of fire protection (safety) is to prevent the spread of hazardous fires and in the event of a fire, to provide for effective fire fighting and the rescue of people and animals. The flammability of construction products and building elements has been laid down in EN 13501-1.
Related entries: Standards resilient floorings
For testing and rating of the slip resistance of floor coverings in Germany there applies the guidelines BGR 181, edited by The National Association of Industrial Cooperation. This association classifies the working-areas and tests and classifies the floorcover-ings. The method for testing floor coverings is the “ramp test”. The testing device is a smooth slab. The angle of this slab can be adjusted from 0 to 45°. A sample (size 100 x 50 cm) of the floorcovering is mounted onto the slab and wetted with 100 ml of min-eral oil SAE 10 W 30. Three persons wearing safety shoes walk three times each on the test sample while the angle of the slab is changed.
The best footfall sound protection is archived with floating screed with an appropriate insulating layer. Footfall sound insulating underlays are used under resilient floor coverings if this protection is not provided or inadequate.
The main function of sound insulation is to protect us from the ever-increasing exposure to noise regarding the propagation of noise from outside, sound from our own and external homes and workplaces. This achieved by means of sound insulation and noise reduction.
Related entries: Sound absorption underlay
For the different resilient floor coverings a seperate product standard specifies the requirements and tolerances. From January 2007 all floor coverings sold in the European Union and the CEN member states must bear the CE mark. This is however conditional on such floor coverings satisfying the essential requirements of EN 14041 and the requirements of the individual product standards.
The raw materials for the manufacturing of DLW Linoleum are linseed oil, resins of wood, cork- and wood-flour. These contain certain compounds which react when exposed to light: During the time needed for oxidation and protected from light they cause a yellow, green or brown shade. When you expose DLW Linoleum to light, this shade will disappear, the more intensive the light, the faster the disappearance of the shade.