You could also get insulated curtains or cellular blinds. Of course, you do want to plug up anything coming up from the edges but insulated curtains would look nice. The only issue is that they will block the light. If you have enough light from other places these would work well. On warm sunny days you could open them and let the sun shine in then close them on dreary days. Good luck!
3M window plastic is the best brand. They also have different sizes for larger windows, like sliding glass doors, or big sheets to cut to fit. If you find you don't have enough, just use the double sided tape that you use to put it up to make enough of the film to cover the window.
A sliding glass door with double glass. The seal has been broken- Is there any way to clean in between the glass? Just not ready to replace the whole door at this tim...
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For winter or in general
if you are not using the doors during winter, use the shrink wrap plastic and a clear tape if you need to join 2 pieces..
Here are some good tips on how to stop cold air leaks that you can use for your sliding glass door.
https://www.youtube.com/watch?v=PYOhxK0yauE
You could also get insulated curtains or cellular blinds. Of course, you do want to plug up anything coming up from the edges but insulated curtains would look nice. The only issue is that they will block the light. If you have enough light from other places these would work well. On warm sunny days you could open them and let the sun shine in then close them on dreary days. Good luck!
Kinda depends on whether you are still needing access to go in and out of the door. If you don't need access, I would use rope caulk, flexible, around trim if you're having air infiltration. Just press in.... https://www.amazon.com/Duck-283580-8-Inch-35-Feet-Single/dp/B005OXRLDC/ref=sr_1_2?ie=UTF8&qid=1509756591&sr=8-2&keywords=rope+caulk+for+windows
Then you can get one of those plastic kits to completely cover the door, watch the video... https://www.amazon.com/3M-Indoor-Patio-Insulator-1-Patio/dp/B0000CBJ80/ref=sr_1_1?s=hi&ie=UTF8&qid=1509756693&sr=1-1&keywords=sliding+glass+door+plastic+insulation
If you going to go in and out the door, I would get the heat reflective window film that holds heat in and you can see out clearly..... https://www.amazon.com/HOHO-Reflective-Window-Privacy-Sticker/dp/B0757LF7G1/ref=sr_1_2?s=hi&ie=UTF8&qid=1509757160&sr=1-2&keywords=reflective+window+film+to+prevent+heat+loss+in+winter comes in several colors
And add thermal curtains for night time maximum heat retention.... http://www.brylanehome.com/Search/SearchResults.aspx?SearchHeader=thermal%20curtains&stype=text
3M window plastic is the best brand. They also have different sizes for larger windows, like sliding glass doors, or big sheets to cut to fit. If you find you don't have enough, just use the double sided tape that you use to put it up to make enough of the film to cover the window.
Question has Ben answered.. Thank you forgiven my some solutions... J. Adin
Home and Garden DIY Ideas | Hometalk
Get thermal curtains to hang on them they work great I use them