Many have added a Plexiglas cover for the front door of their Montana. I hate to copy everyone but I decided to try the vinyl cover with Velcro. The first try I bought the heaviest vinyl I could find and it did not work well at all. When I went back to find a lighter weight I found some that has butterflies all over it. I love butterflies. Thought I'd show you a picture... It is attached with very thin strips of Velcro that I cut down so as not to interfere with the closing of the door.
The sun was so bright that I only got a picture of the bottom half but you will get the idea.. I attached it to the inside so I wouldn't need a ladder to take it off and on and also to keep it out of the weather.
Helen