Use

 

How is

our raised access floor

used?

 

  Massetto Tecnologico senza logo JVP

 

The raised access floor is a product known and used everywhere in the world since long ago. Following more recent experience it could now find a new life being used in a completely new field. Let JVP introduce you to it in a brief summary of our experience!

For example, usually the slabs between the floor levels of a building are made from metal, wood, concrete or a mix of each and are constituted by two specific parts: the structural one which gives the load bearing capability and a non structural one which gives other functions.

The structural component is essential and has to be designed with consideration to the potential total loading envisaged for the slab. This loading is represented by the slab itself, its floor screed and services, the people working on it, as well as their equipment, which will be engaged on it and the ceilings of the level below.

to lighten the dead load of the slab by at least 120kg/m2

to become accessible storage for the floor’s services

As a consequence, the non structural component, the raised access floor, has a very strong influence over the slab design: the lighter it is, the simpler and less expensive the slab is to design.

Even the calculation for the foundations, as well as the columns and vertical structures, will be strongly affected by the total load of the chosen slab: as the lighter it is, the simpler and less expensive those components will be.

Last but not least, the calculation for the affect from an earthquake is definitively affected by the total weight of the slabs: as the less moving mass there is during that possible event, the simpler and less expensive the structure would be.

In order to reduce the costs in terms of materials and program and not being possible to work on the structural slab itself, we can only reduce the weight of the service’s and floor screed.

A service screed is a layer composed by cement and sand mixed together, with or without light additional components, used in order to level the structural slab and protect the service’s ducts and pipes: in order to be useful it has a thickness of 5 to 8cm and consequently a weight of 110 to 115kg per square metre.

A floor screed is a layer composed of cement and sand mixed together, with or without light additional components, used in order to perfectly level the service screed: in order to be useful it has a thickness of 3 to 4cm and consequently a weight of 60 to 65kg per square metre.

Finally, in order to control the thermo and acoustic insulation, the application of extra special sheets is needed at a quite considerable cost.

At least, the minimum weight for both service and floor screeds represent around 170 to 180kg per square metre: that dramatically affects the whole cost calculation for the building: a lot of raw materials, work used for nothing!

In fact, the service and floor screeds could easily, as well as efficiently, be substituted by a unique element able to have the capability to provide, a free and protected space for the services, as well as leveling the structural slab and floor surface and giving acoustic and thermal insulation. That unique element provides this capability at less weight and program to install and consequently, at a far lower overall cost: that element is simply our JVP 4x4 raised access floor!

 
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