The following are other options we have considered for a balcony covering, but do not find will work well for various reasons.
Awning / Zonwering
Search terms: cassette-zonweringen, knikarmzonweringen, markies, uitvalscherm, terrasvouwdak, uitschuifbaar
I have looked into many options, and although some do provide both regenwering en zonwering, most can not handle high winds. Here are some that might work:
Leiner Casa Sunrain https://www.leiner-zonwering.nl/cassettezonweringen/casa-sunrain
Weinor PergoTex II http://www.weinor.com/pergotex2/
Weinor.Plaza Home http://www.weinor.com/plazahome/
Veldman Zonnescherm Regenscherm ZRS https://www.veldmanzonwering.nl/product/ZonneschermRegenschermZRS
Gibus Zero+ zip http://www.gibus.com/england/en/product/leaning-pergolas/mediterranea/zero
Stobag: http://www.stobag.com/en/balcony-terrace/
Retailers:
https://www.veldmanzonwering.nl/categorie/zon-en-regenwering
Burgemeester Falkenaweg 91 | 8442 LB Heerenveen (near Joure).
Schaduwdoek
Muurbevestiging Schaduwdoek
http://www.alumbro.nl/schaduwdoeken/muurbevestiging
Muurparasol balkon / Balkon Klemparasol
Parasolhouder balkon
https://www.vidaxl.nl/e/8718475881551/stalen-houder-voor-parasol-of-vishengel-zwart
Front and side walls / Zijwanden
Wind screen / Windscherm
Rolgordijnen
High Density Polyethyleen (HDP)
https://schaduwdoekplaza.nl/5-rolgordijnen
Zip-screen blinds / Ritsscreen zonewering
Transparante rolluiken
PVC transparante raamzeilen
http://verandazeilspecialist.nl
See How to Enclose Your Porch with Clear Vinyl https://nl.pinterest.com/pin/195765915024024231/
PVC / Pvc zeildoek, Verandazeil
600 gr/m2 gewapend en brandvertragend
https://www.partytentplaza.nl/partytent-zijwanden/verandazeil-model-14-938/