Cleanroom Ceiling Systems

December 9, 2020

The Nicos Cleanroom System is a fully modular solution. Not only the wall partitions, but also the cleanroom ceiling comes in modules. It is designed to ensure maximum performance and flexibility.

Cleanroom low load false ceiling
Cleanroom Ceiling Example: Tiles

Components and Design of Cleanroom Ceiling Systems

The cleanroom ceiling system is composed of several key components designed to ensure structural integrity, material compatibility, and cleanroom compliance. At its core there is a Primary Support framework, consisting of tensors and threaded rods (8mm diameter) that suspend the entire ceiling system from the structural ceiling above. This is connected to an Aluminum Framework, built with a T-type profile structure available in anodized or painted aluminum, which forms the modular grid system. The ceiling can be installed with or without a plenum or veil.

The system supports a full range of finish materials, including HPL, uPVC, painted steel, painted aluminum, and stainless steel, matching those used in the wall panels to ensure consistency in cleanroom environments.

In terms of design, the ceiling offers flexible options: the T-grid structure can be walkable or non-walkable, while seamless panels are walkable and made up of large 4’x10’ steel panels, providing both durability and accessibility in maintenance zones.

Cleanroom Ceiling Scheme Detail
Cleanroom Ceiling Details

Structural Details of Cleanroom Ceiling Support Systems

The cleanroom ceiling support system is engineered for strength, precision, and reliability in controlled environments. It features a combination of superior supports (10mm with two holes) and inferior supports (6mm with one hole), ensuring secure suspension and structural stability. The system incorporates rounded aluminum profiles with a 60mm radius for external edges, contributing to a smooth, hygienic finish that reduces particle accumulation.

A robust fastening system is used throughout, including M6x20 hexagonal flanged screws with serrated heads for firm and vibration-resistant connections. The raw aluminum undershell and perimeter profiles provide a clean, industrial-grade finish, while visible spacers integrated into the T-type aluminum structure support uniform alignment and load distribution across the ceiling system.

Cleanroom Ceiling Design Options and Configurations

The cleanroom ceiling system is available in a variety of design options to meet the specific requirements of different controlled environments. Surfaces can be configured as either walkable or non-walkable, depending on maintenance and access needs. Finish options include HPL, uPVC, painted steel, painted aluminum, or stainless steel, all matching the materials used for cleanroom wall panels to ensure visual and functional consistency. An internal insulation layer can be integrated using materials such as polystyrene, high-density rock wool, aluminum honeycomb, or polyurethane, enhancing both thermal and acoustic performance.

An example of Nicos cleanroom ceiling systems

The ceiling system can be installed in a T-Grid tile configuration or as full-size seamless walkable panels, typically made of steel and measuring 4’x10’. There are two main ceiling models available: the Seamless Panels Ceiling and the T-Grid Ceiling. Both can be upgraded to a walkable cleanroom ceiling, capable of supporting a live load of 35 PSF across the entire area, enough to allow two operators to safely perform maintenance activities directly on the ceiling surface.

For spans of up to 12 feet, both the T-Grid and Seamless models can function as a self-supporting ceiling when anchored to vertical walls. For spans exceeding 12 feet, the system must be supported by the structural ceiling above, in line with cleanroom high load false ceiling requirements.

Seamless cleanroom ceiling system

This hermetic, walkable false ceiling system is designed for cleanroom environments, offering flexibility, ease of assembly, and robust performance.

By minimizing seams, the cleanroom ceiling enhances airtightness, making it an ideal solution for potent product manufacturing areas or spaces where maintenance access from above is required.

Example of seamless cleanroom ceiling
Seamless Panels ceiling

Constructed with modular units, it consists of external skins made from the same material as our Cleanroom Wall System, with a steel frame supporting both live and dead loads, as well as hanging loads as indicated.

The ceiling panels are walkable, supported by a retractable load-bearing structure, and feature sound and thermal insulation. Resistant to humidity, the ceiling is capable of maintaining the specified cleanroom class conditions.

It can be installed before or after wall placement, adapting to various layouts and offering easy integration with plenum cap assemblies.

Filters, lights, and other accessories are accessible from the top of the ceiling. Pre-cut openings for filters, lights, and utilities are precision-machined at our facility using high-tech CNC pantographs.

Example of seamless cleanroom ceiling
Seamless Panels Ceiling

The connection to the existing building's roof is made using a special extrusion combined with standard threaded rods and turnbuckle with double eyelet.

Self supporting cleanroom ceiling seen from above

Self-Supporting Walkable Ceiling

We offer a fully Independent Self-Supporting Walkable Ceiling System, which eliminates the traditional requirement for roof suspension through an independent structural framework capable of spanning up to 25 feet without intermediate pillars. Unlike conventional cleanroom ceilings, this solution creates a true "box-in-box" environment. The self-supporting design provides superior stability, reduced vibration transmission, and complete isolation from the main building structure, making it ideal for sensitive applications or facilities where roof attachment is impractical. This approach significantly enhances flexibility for cleanroom positioning within existing structures while simplifying future reconfiguration or relocation. Learn more about our Self-Supporting Walkable Ceiling System and how it can transform your cleanroom project →

Seismic can be achieved with a combination of additional parts (special plates, connectors, profiles) which are part of the system offered.

T-Grid cleanroom ceiling system

Whenever the driving factor in the cleanroom ceiling selection is flexibility, a T-Grid cleanroom ceiling system is the ideal choice. Position of HEPA filters and light fixture can be decided up to the last moment and can even be swapped after installation.

The T-Grid ceiling is a hermetic false ceiling designed for cleanroom environments. It features a load-bearing T-Grid structure made of extruded aluminum profiles that support ceiling panels, lights, and filter units.

Example of T-Grid cleanroom ceiling system
T-Grid Ceiling

The structure of the T-Grid Ceiling is suspended by threaded rods with adjustable turnbuckles, fastened to overhead supports at approximately 4’ intervals. The system offers flexibility with two standard panel sizes, 24"x24" and 24"x48".

The ceiling panels are constructed as sandwich panels, featuring sound and thermal insulation, as well as resistance to humidity. They are made of galvanized steel with a smooth, polyester-coated surface in RAL 9010 or RAL 9003. The back of each panel is reinforced with 3/8” plasterboard, factory-glued for added durability.

T-Grid cleanroom ceiling technical features
T-Grid Technical Features

Designed for easy assembly, the T-Grid structure ensures airtightness where lay-in components like panels, light fixtures and air diffusers are sealed to the grid with sealant to prevent air leakage and resist fungal growth. Optional polyethylene gaskets applied to the grid are available upon request.

The T-Grid Ceiling can also be certified as walkable if paired with heavy duty walk-on tile.

Nicos Cleanroom Ceilings can be compliant with seismic requirements, upon request. Learn more on seismic ceiling.

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