Erika- nice garage
and I thought I was doing ok with my vinyl canopy! Saw that coach at Top of Georgia sometime ago, glad it still has a good home.
Here is a copy from an earlier post on window channel stuff--
Go to your local glass company and see if they can match this number from their seals and weatherstripping catalog:
ASF126896
Its all rubber with a felt lip. When cut from the back every 1/4" at the corners, it conforms better than the fabric/wire mash stuff. It is also much easier to cut the weep holes for the drains.
It retails for about $15.-/8'