Pleated curtains.
Pleated curtains are fabrics that have the shape of an "accordion" which allows them to be collected in a very small space.
Being very light but resistant fabrics, they are the optimal option to be placed on glass, in enclosed spaces (such as balconies or terraces) with book-type collection.
There is a great diversity of fabrics, from resin to darkened fabric, through various models of "screen".
They are cleaned on, with a duster to remove dust or dirt in relief and in case of stain, it is given on the stain itself with a cloth with soap and water.
You can see some models in the link below.
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