If you have a polycarbonate roof on your conservatory then you really should take a look at solar roof inserts.
They are less expensive than blinds, maintenance free, come with a lifetime manufacturers warranty and are very effective. We are the local dealers for Polycool Ltd. The inserts are pushed into each separate channel of the roof and come in either gold or silver.
We are an accredited supplier and fitter for these solar control inserts - to download the very informative Conservatory Cooling leaflet, please click here.