After foundation and tunnel systems are complete, preparations follow for the inflation of the airform. Construction equipment and materials are staged inside the footprint of the airform.
The PVC airform, custom sized based on the customers’ specifications, is bolted to the ring beam and inspected to ensure integrity. It is then inflated using large fans to form the dome shape and maintain inflation pressure. Inflation pressures vary by building size, but typically range from 1.5-2.5 inches of water column. The inflation pressure is maintained throughout subsequent construction activities until the reinforced concrete has cured. The fabric will remain in place indefinitely as it becomes the outer waterproofing membrane.
The dual role of the PVC airform
These air-inflated, PVC-fabric structures act as a critical form and support component in the construction of domes that can span over 330 feet and reach heights of 200 feet.
Specialized fabrication to meet the highest standards
The airform is fabricated at the Dome Technology campus in a state-of-the-art facility to match precise design requirements. We utilize software-driven, automated equipment to ensure our fabric components are cut and welded with the greatest possible precision and consistency.
The all-weather construction environment
Once attached to the ring beam and inflated, the airform creates a protected environment, allowing for construction to continue inside the dome in almost any weather conditions.