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The requirements that raised floors must fulfil throughout their life cycle depend on their application use. In fact, the most suitable solution is derived from a complete analysis of all the characteristics of the floor and its parameters.

The designer must find the minimum construction characteristics that identify the chosen technology and guarantee the expected result such as material, panel thickness and format, possible top finish, type of structure and height of the finished floor.

Guideline of raised floor choice in relation to the application fields according to UNI 11617:2016

Useful indications for the correct choice of the raised floor and its characteristics for the most frequent applications.

PERFORMANCE	Offices	Data center	Commercial	Industrial	Public spaces, hospitals	Residential
Concentrated load	Class 1 - 2 ≥ 4KN/6KN	Classes 5 - 6 ≥ 10KN/12KN	Classes 3 - 4 ≥ 8KN/9KN	Classes 5 - 6 ≥ 10KN/12KN	Classes 3 - 4 ≥ 8KN/9KN	Class 1 - 2 ≥ 4KN/6KN
Dynamic impact load	No	No	Yes	Yes	Yes	No
Tangential dynamic load (examples)	Absent	Framework handling if provided	Transpallet	Forklifts	Trolleys, beds, mobile medical equipment	Absent
Seismic resistance	According to current regulations
Acoustics	High	Low	Low	Low	High	High
Fire reaction	According to current regulations
Fire resistance	According to current regulations
Electrical conductivity	Physiological antistatic	Antistatic or dissipative	Physiological antistatic	Antistatic, dissipative or conductive according to risk analysis		Physiological antistatic
Cleanability	High	High	High	Moderate	High	High
Thermo-hygrometric conditions	Always to be considered in relation to the materials used

NOTE: Mechanical loads are expressed in KN (1 KN = 98.1 kg). The load class is associated with the classiﬁcation of deﬂection expressed by the letters A (2.5 mm), B (3.00 mm) and C (4.00 mm) according to the standard. The working load is normally calculated with a safety factor of 2, i.e. half the value of the maximum permissible load (breaking load). maximum permissible load (breaking load).

Raised floor in renovations projects

In the renovation works of buildings – even historical ones – the use of raised floors becomes the ideal solution as it is a system capable of integrating contemporary comforts in the total absence of masonry work while keeping the architectural framework intact. Among the main advantages of the raised floor in the redevelopment and/or restoration of buildings are:

– Building preservation and enhancement: the raised floor is a modular system that can fit into any context thanks to its non-invasive features. The dry installation, the creation of the technical space dedicated to the plant layout and the multiple finishings available allow an easy integration of modern living standards while preserving the original structure.

– Structural stability: raised floors reduce the load bearing on the foundation and distribute the weight equally over the entire structure. This allows historic buildings to resist over time, ensuring long-term preservation.

– Insulation: the presence of the underfloor technical compartment contributes to improving the thermal performance of the environment, preventing structural damage due to moisture, which is more common in historic buildings.

– Efficient maintenance: the raised floor is a system that can be inspected, thus allowing access to the underfloor system to carry out any maintenance operation quickly and easily, optimising costs.

–Design freedom: raised floors support the project in its entirety thanks to the many performance and aesthetic variations available, which can be fully customised according to the existing architectural scenario.

– Sustainability: thanks to the company’s constant commitment to improving the quality of the supply chain and optimising production processes, Nesite’s floating floor solutions meet the standards of the various types of environmental building certifications.