Eliminate conservatory overheating with a Solar Shield Most people find their conservatories comfortable during spring and autumn and on bright sunny days during the winter. For the rest of the year however, virtually all conservatories suffer heating problems. In the summer the conservatory is too hot and in the winter it's too cold. The energy of the summer sun beats down on the roof and, in penetrating the conservatory, causes internal temperatures that can rise to well over 100ºF. This can make your conservatory uninhabitable, roasting both you and your plants. Then in the winter temperatures can fall to near freezing! Fortunately there is a complete and permanent cure to both extremes that can be used on either polycarbonate or glass conservatories.