Eleva

Acceptable System

Access floor system shall be Eleva access flooring. Alternative products shall meet or exceed design criteria.

Floor Panels

Access floor system comprises of modular floor panels of 600mm X 600mm X 34mm thick.
Panels are welded steel components with an enclosed bottom pan formed by a uniform pattern of domes and filled with lightweight cement material to improve acoustical and dynamic load performances.
The rigid structural panels are to be fabricated to tolerances of +/-0.25mm on squareness and 0.75mm on flatness measured diagonally across the top of the panel.
The difference in height between adjacent panels should not exceed 0.75mm before any application of load.
The floor panels shall be easily removable by one person using manufacturer's approved list of panel lifters and shall be interchangeable except where cut.
The floor panels are to be protected against corrosion internally with a phosphate coating and externally with an electrostatically applied powder coating. This coating is to be baked to fuse the powder to steel surfaces.
Panels without coverings need to provide zero indices for ignition, spread of flame, heat and smoke.
Chipboards, particle boards and any other combustible panels are not acceptable.

Panel Finishes

For general office areas, the panels are to be bare, with carpet tiles to be supplied by others.
For computer rooms, panels should include anti-static high pressure laminates (HPL) and to be protected from the sides with vinyl edge trims and joint of trims shall be mitred.

Pedestal Assemblies

Pedestal assemblies should consist of head and base assembly components made from steel, welded during construction and protected from rust and corrosion.
The assembly must provide levelling in increments of 0.3mm and overall vertical height adjustment of +/-0.25mm.
Pedestal assembly should incorporate levelling and gravity activated locking devices to ensure that elevation is not lost during rotation of the pedestal head.
Pedestals, when secured to the sub-floor with manufacturer's approved adhesives, should be capable of accepting an axial load of 5kN.

Stringers

Stringers should be fabricated of galvanised steel capable of supporting a 204kg load applied through a 25mm square indenture at the centre of its unsupported span and designed to interlock the pedestal head to form a modular grid.
Stringers to be fastened to the pedestal assembly by means of bolting with Philip head M6 screws in Electrode Zinc plating finish or with a snap-on method.

System Performances

Ultimate load on the floor system should be 3 times the design load capacity without failure, i.e. without the floor collapsing.
Unless otherwise specified, performance of the access flooring system should comply fully with standards in the following specification - 'MOB PF2 - Platform Floors (Raised Access Floors) Performance Specification'. This specification originated from Property Services Agency (PSA) Specialist Services, England.

For Medium Grade
The Medium Grade Panel (FS800) should be capable of accepting a concentrated load of 3.6kN over an area of 25mm² at any location on the floor, with a maximum deflection of 2.40mm. Permanent set shall not exceed 0.5mm.
The Medium Grade Panel (FS800) should be capable of accepting a concentrated load of 8.0kN / m², with a maximum deflection of 2.00mm. Permanent set shall not exceed 0.5mm.

For Heavy Grade
The Heavy Grade Panel (FS1000) should be capable of accepting a concentrated load of 4.5kN over an area of 25mm² at any location on the floor, with a maximum deflection of 2.40mm. Permanent set shall not exceed 0.5mm.
The Heavy Grade Panel (FS1000) should be capable of accepting a concentrated load of 12.0kN / m², with a maximum deflection of 2.00mm. Permanent set shall not exceed 0.5mm.

For Extra Heavy Grade

The Extra Heavy Grade Panel (FS1250) should be capable of accepting a concentrated load of 5.5kN over an area of 25mm² at any location on the floor, with a maximum deflection of 2.40mm. Permanent set shall not exceed 0.5mm.
The Extra Heavy Grade Panel (FS1250) should be capable of accepting a concentrated load of 15.0kN / m², with a maximum deflection of 2.00mm. Permanent set shall not exceed 0.5mm.