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If air conditioning via the plenum is used, a high level of ventilation is required. Comey offers adapted raised access floor solutions with perforated panels.
Non-ferrous material. Aluminium is has several properties which are useful for raised access floors: non-magnetic, incombustible, damp-resistant.
Option available for 38mm thick panels, provides a M0 rated covering, panel fire rating M1.
Defines a framework consisting of pedestals and stringers
Stringer or tube allowing fewer pedestals to be used
This is an ore also known as gypsum. It is used for the core of Comey M0 panels.
Central frame around which the panel structure is constructed. Most Comey panels are manufactured from a pressed wood core (all applications apart from M0 and specific cases) or a calcium sulphate core (fire rating M0).
Measurement of the horizontal deflection tolerated by the panel. Deflection is classed in 5 categories (see section on Technology > Standards)
The panels can withstand heavy loads (see resistance), on condition that the load is distributed over the whole panel. However they can be damaged by loads concentrated in one place.
The raised access floor is earthed by... to be continued
Tin-plated copper braid used to connect the raised access floor to the building's earth
Element constituting the structure supporting the raised access floor
Cellular aluminium panel with high ratio of air flow (> 40%)
Total height between the upper surface of the original ground and the upper surface of the raised access floor
Installation by a specialised company is compulsory. The quality of the installation is essential to ensure the durability of the raised access floor.
The raised access floor panels can be supplied bare for a loose-lay covering or fitted with a covering which will be incorporated into the panel in the factory. Integrated coverings are long-lasting and protected by the panel's finish. Handling is made easier as the panel is totally free.
Standard NF EN 438-1 & 2
Bare raised access floors can be covered with carpet or other loose-laid coverings. These are generally 500 x 500 loose-laid carpet or vinyl tiles
Bare raised access floors can be covered with carpet or other loose-laid coverings. These are generally 500 x 500 loose-laid carpet or vinyl tiles
See the section on Technology > Technical note. Specialised companies offer maintenance services for raised access floors, increasing the lifetime of the equipment.
Element constituting the horizontal surface of the raised access floor, generally square (can be delivered with covering glued on in the factory or bare)
Vertical element of the framework supporting the panels, height-adjustable
Element constituting the horizontal surface of the raised access floor and having a certain number of perforations
Free space under the raised floor
Pressed wood is used to form the core of many Comey floor panels. It is suitable for most applications, apart from specific cases and M0.
System of panels resting an a structure thus creating a plenum for the passage of liquids. Formerly termed: raised floor and technical floor
Other name for raised access floors.
Raised access floor panels are susceptible to denting when heavy loads are moved over them. You are advised to protect them with a track designed to spread the weight of rolling loads over the floor structure.
Defines a framework consisting only of pedestals
Option available for 38mm thick panels, provides a M0 rated covering, panel fire rating M1 and reinforces mechanical resistance.
Horizontal element of the framework connecting pedestals together. Increases the resistance to loads and/or increases the lateral stability and/or increases the air-tightness of the plenum
Former name for raised access floors. This term is no longer in use.
Standard NF P 62-202 DTU 53.1, can be glued onto the panels or loose-laid
Electrical resistance measured using specific equipment between the upper surface of the raised access floor and the building's earth
Lower side of the panel, covering the core. The underside can be reinforced with steel or aluminium.