A pneumo-frame inflatable building (PFIB) is an inflatable structure supported by sealed pneumatic arches filled with pressurized air.

The inflatable arches are connected into one frame, and the outer shell is fixed to that frame. The frame elements and shell are made from technical PVC-coated fabric and joined with high-quality welding. Tight, strong seams help the structure keep its shape and withstand operating loads. The air supply system does not work constantly; a blower with automatic pressure control turns on only when pressure needs to be restored. Depending on the frame design, inflatable structures are divided into modular and single-unit types.

Modular pneumo-frame inflatable buildings

Modular buildings consist of sealed arched modules filled with compressed air. Each arch is independent, connected to neighboring arches with special snap hooks, and supplied by the blower as needed. If one arch is damaged or depressurized, the building can remain functional while the damaged element is repaired. Modular PFIBs are easy to unload, transport, and install because each module is relatively light. The building can also be modified during operation by adding or removing modules, and two structures can be combined into one larger building.

Single unit inflatable buildings

A single-unit inflatable building is an integral sealed structure that does not require a separate outer shell. This construction type allows different design options, but it is generally used for structures with a width of no more than 66 ft.

Sealed inflatable unit

The structures are made from technical textiles coated with polyvinyl chloride (PVC). Valmex and Polymar fabrics from Mehler Texnologies have proven strength and performance in a range of climates. Key material characteristics include high tensile strength, tear resistance, stain resistance, a wide operating temperature range, electrical insulation properties, low flammability, UV resistance, weather resistance, and environmental safety.

Windows and doors

Pneumo-frame construction allows a wide choice of doors, gates, and access systems. Projects can include industrial automatic gates, reinforced plastic doors, glazed sections, pneumatic doors and gates, or simple PVC fabric flaps. Transparent material can be used for windows and daylight zones.

Air supply system

The air supply system is installed outside the building in a soundproof box. It includes main and reserve blowers, an automatic pressure control unit, and a diesel generator. The main blower turns on when pressure drops and shuts off when the upper pressure limit is reached. The reserve blower activates if the main blower cannot maintain pressure, and the generator starts in the event of a power failure.

Footing

On a concrete footing, a PFIB is secured with anchor bolts. On soil foundations, ground screws are usually used. Another installation option is ballast, such as PVC bladders filled with water or sand.

Lighting

PVC fabrics with good light transmission can bring natural daylight into the structure. Transparent windows may also be added. When artificial light is required, lighting fixtures are included in the project package.

Creating indoor environment

To create a comfortable indoor environment, the building can be equipped with heat generators, hot air blowers, ventilation equipment, and air conditioning systems from proven manufacturers.