Abstract: A clamp apparatus is used for securing one end of a flexible sheet spanning under tension across a building opening relative to a perimeter beam along the edge of the building opening. The clamp apparatus has a C-shaped channel body having (i) a first flange with a threaded bore therein to receive a bolt defining a first clamping jaw and (ii) a second flange defining an opposing second clamping jaw, whereby the clamp apparatus clamps a perimeter mounted flange of the flexible sheet onto a beam flange of the perimeter beam. C-shaped stiffener plates are mounted externally on the channel body, spaced apart from one another along the length of the channel body in perpendicular relation to the length to reinforce the clamp such that the clamp is able to withstand high wind forces acting on the tensioned sheet.

Abstract: An insulated wall system for a building includes a sheet assembly spanning across an opening in a building frame. The sheet assembly includes an outer plastic sheet member at an, an inner plastic sheet member at an interior, and a core layer of heat insulating material between the inner and outer sheet members. One or more perimeter boundaries of the sheet assembly includes a tensioning pocket formed on the inner sheet member to receive a frame member therein such that a tensioning mechanism can apply tension between the frame member in the pocket and a corresponding boundary of the building opening to tension the sheet assembly. The outer sheet member is joined to the inner sheet member about a perimeter while the core layer is bonded to both sheet members to transfer tension of the inner sheet member through all layers of the sheet assembly.

Abstract: A ventilation device is supported in at a ventilation opening in a fabric panel of a building in which the fabric panel is supported under tension across a frame. The device includes a lower frame and an intermediate frame with respective flanges that receive a perimeter edge of the fabric panel about the ventilation opening therebetween. A cover is joined to the frames so as to prevent precipitation entering the frame opening while providing exterior ventilation from the ventilation opening of the building through one or more exterior openings in the cover.

Abstract: A wall system for forming a weather enclosure across a building opening in the frame of a building includes a flexible sheet of flexible material, a first rigid frame member secured across a first end of the flexible sheet, and a second rigid frame member secured across the flexible sheet in proximity to an opposing second end of the sheet. The first rigid frame remember is fixedly mounted on the building frame. A tensioning assembly is operatively connected between the second rigid frame member and the building frame so as to apply tension in the longitudinal direction to a portion of the flexible sheet. The tensioning between rigid frame members spanning across opposing ends of the sheet ensures that the sheet can be supported under significant tension throughout the sheet to enable the sheet to withstand considerable wind and precipitation loads.