The barrier tape makes a ziemlic siginificant, quality is firmer than I would have expected. Even a weight loss (was mounted with adhesive tape on the door and windows) was no problem. Not even the color came off when releasing the Tesa film. Also, I find that very positive: there are no kinks in the material during storage. Normally scrolls at the kinks whatsoever from the color. Not here. From Daer 5 stars for the product with the most competitive price. Recommended.