It had been there for 11 years before something heavy enough landed on the carport tarp to puncture it and it might be another eleven years before it happens again. And it might happen again in 11 days.*
This afternoon on our cycling trip home from work we took a slightly different route than usual which took us right by one of those portable building places. Right after we passed it we made a u-turn, which, on a tandem, takes more road than you might think. We went inside and picked up a brochure for one of those metal carports.
*We hope it waits at least twice that, because we were told that it takes about 3 weeks to get one of those metal carports installed.