Raised Access Floors

Both are possible. As standard, our raised floor panels are supplied with a factory-laminated covering — for example HPL, PVC, linoleum or rubber. Alternatively, you can take the panels uncoated and we'll apply your chosen sheet or tile covering on site. The choice of covering affects ESD behaviour, acoustics and fire protection, and is agreed with you during the design phase.

Raised floors are classified to DIN EN 12825 into Classes 1 to 6 — with permissible point loads from 4 kN (Class 1) to 9 kN (Class 6) at a safety factor of 2.0; bespoke constructions achieve 10 kN and more. Office areas typically need Class 2 (5 kN), while data centres and control rooms need Class 5 or 6. We size the floor based on your service loads and the installed weight of your cabinets.

For raised floors, we use wood-based panels with a steel sheet or aluminium foil backing. We also install gypsum fibre panels, optionally with a steel sheet backing. The steel sheet serves to increase load capacity. The exact material composition depends on the fire protection and load class requirements.

Non-combustible panel cores (calcium sulphate, steel-mineral) achieve building material class A1 or A2-s1,d0 to DIN EN 13501-1. Wood-based cores are typically classified as Bfl-s1 as a complete system. F30 can be achieved with all common panel types and a suitable covering.

The subfloor should be load-bearing, level (to DIN 18202 tolerances), dry and dust-bound. Cracks or grease patches must be treated before the pedestals are bonded. We inspect the substrate condition before starting and document any defects. Minor unevenness is compensated for via the height-adjustable pedestals — larger tolerances require levelling compound or a separating layer.

With raised floors, underfloor heating is generally not built into the panel itself but run as a radiant heating/cooling module within the void, or via supply air through the raised floor. Displacement ventilation systems also work through the void acting as a pressure plenum. A conventional wet underfloor heating system within the panel is technically possible but rarely cost-effective — we'll advise you on the right solution.

Yes. Mineral wool insulation packages, acoustic absorbers or vapour barriers can be installed within the void — particularly important for external or basement areas, and for displacement ventilation systems where airflow losses need to be minimised. We plan the insulation together with the climate/energy concept and ensure that access hatches and cable routes remain accessible.

In principle, every raised floor panel is an access point — it can be lifted out individually with a lifting tool. Where additional outlets for cables, sockets or ventilation grilles are needed, we cut the panels to a precise fit. Wherever possible, we plan these cut-outs before the covering is installed.

You maintain the surface according to the covering — vacuum carpet tiles, wet-mop resilient coverings (PVC, linoleum, rubber), and periodically deep-clean and reseal. The void should be professionally vacuumed every 3–5 years, more frequently in data centres — using an ESD-safe vacuum with HEPA filter, without disrupting ongoing operations. We offer maintenance contracts including documented void cleaning.