Abstract: A fabric panel unit for use as a wall of a structure in which a fabric strip is secured to the panel along the long edges of the strip to form an elongated pocket open on the ends. An inflatable tube with an inflation valve is positioned inside the pocket. The panel unit is extended between supporting structural members and anchored thereto in a relatively slack condition. The pocket extends transversely to the run of the panel between supporting structural members at opposite sides of the panel. The panel is tensioned by inflating the tube to distend the pocket and to shorten the panel in the direction of its run. Impact loading on the panel is absorbed by elongation of the cross-sectional shape of the pocket.

Abstract: A panel unit for an air supported structure including an outer wall, a pair of first inner insulating panels attached to said outer wall adjacent one another, and a second insulating panel attached to a pair of said first insulating panels spanning and covering the junction of two said first insulating panels to provide insulation at the junction. Air relief vents are provided on both said first and second insulating panels to permit trapped air to be vented when the structure is collapsed.

Abstract: A double wall fabric panel unit for use as a wall section in the construction of inflatable buildings comprising an elongated exterior fabric envelope panel having a plastic coating on each side, and an elongated thermal liner panel having side edge strips heat-sealed to the exterior panel. The thermal liner has a foil layer facing the exterior panel and a white plastic layer on the opposite side. The side edge strips are periodically interrupted to provide air passageways to vent air from between the panels when the unit is rolled.

Abstract: A double wall fabric panel unit for use as a wall section in the construction of inflatable buildings comprising an elongated exterior fabric envelope panel having a plastic coating on each side, and an elongated thermal liner panel having side edge strips heat-sealed to the exterior panel. The thermal liner has a foil layer facing the exterior panel and a white plastic layer on the opposite side. The side edge strips are periodically interrupted to provide air passageways to vent air from between the panels when the unit is rolled.