North American architects versed in tensile architecture are familiar with PTFE/Fiberglass membrane, yet not as familiar with a newer and far superior form of precision PTFE membrane woven by Sefar.
Sefar PTFE membrane is made from 100% PTFE, meaning it is both woven from PTFE and coated with PTFE. Whereas, PTFE/Fiberglass membrane is woven from fiberglass and only coated with a layer of PTFE. This is why Sefar PTFE membrane transmits and diffuses more daylight, has greater durability and pliability, is foldable and flexible, and does not become brittle over time. Sefar EL-55-T0, for example, transmits and diffuses more daylight than PTFE/Fiberglass (up to 55%). Also, unlike PTFE/Fiberglass that installs with a yellow/brownish hue, all Sefar 100% PTFE membrane materials both install and remain a pristine white throughout their lifespan.