Monolithic granted patent for Transverse Airform pattern

Inside a Transverse Airform

A panorama image inside the Transverse Airform inflated in Drummond, Oklahoma. The fabric seams arch overhead, horizontally, from one “side” of the dome to the other. This is the first Airform using the horizontal panel design for which Monolithic received a patent. (Andrew South)

Exterior view of the inflated Transverse Airform

Sunlight glints off the Transverse panels curving down to the stem-wall. Custom software written by Dave South calculates panels individually — compensating for air pressure stress. The membrane in Drummond inflated to within one-half of a percent of the target height. (Andrew South)

Registration mark drawn at top-center

Unlike radial patterns, the Transverse seams do not meet together at the top of the dome. A registration mark was drawn on the form to help crews identify the top-center. (Dave South)

Aerial view of Drummond Gymnasium

The finished Monolithic Dome in Drummond, Oklahoma, is a gymnasium and safe-room for the school next door. (Andrew South)

Horizontal panels inside Quanah, Texas, dome

The Transverse Airform for the 91-foot diameter dome at Quanah, Texas, only needed 12 panels — instead of triple the number for a radial pattern. Calculating thousands of points at the intersection of the membrane and the stem-wall ensured a smooth, ideal dome shape. (Dave South)

Drone view of snow covered, 182-foot diameter dome in Alberta, Canada.

The largest Transverse Airform manufactured so far is 182-feet diameter by 70-feet tall — a 1:2.6 ratio dome — for a frac sand storage project in Alberta, Canada. This moonlit, winter drone shot shows the snow “following” the horizontal seams. (Andrew South)