Wow. This morning -- when it was nice and nippy -- I pulled the fuse
into the garage and the front and back ends of the canopy frame were
curled up a good 2mm above the fuse. Over the next six hours, when the
temp rose from 40 to 70 degrees thanks to a heater in the garage, that
space got noticably smaller.

Seems like it might be a waste of time trying to seal it, if you can
get it to shut tight at just one temperate range!

~ted/2NO