> I don't know how it holds up to weather, though.
It does very well. The main terminal of Denver International Airport has an enormous PTFE-coated fiberglass fabric roof. It's decades old now and has weathered hail, high winds, and Colorado sun without any significant wear that I know of.
EDIT:
The same product has since been used in a bunch of other stadiums and other large structures, including the Georgia Dome where it survived a near-miss by a tornado with only minor tears:
> "The material is pound-for-pound stronger than steel while weighing less than 5 ounces per square foot. It offers up to 24 percent solar translucency while providing as much as 75 percent solar reflectance"
It does very well. The main terminal of Denver International Airport has an enormous PTFE-coated fiberglass fabric roof. It's decades old now and has weathered hail, high winds, and Colorado sun without any significant wear that I know of.
EDIT:
The same product has since been used in a bunch of other stadiums and other large structures, including the Georgia Dome where it survived a near-miss by a tornado with only minor tears:
https://spinoff.nasa.gov/Spinoff2009/ip_2.html
> "The material is pound-for-pound stronger than steel while weighing less than 5 ounces per square foot. It offers up to 24 percent solar translucency while providing as much as 75 percent solar reflectance"