Have tried coolglass but whilst it must have helped it was no where near effective enough. Have looked into the various films but they are very expensive with no guarantee of success.
Have a large conservatory approx 30' x 12' which is south facing thus far too hot to use in summer. If I stuck sheets of polystyrene insuluation to the polycarbonite roof would it help reduce heat build up. Am not concerned at loss of light because have 3 walls of windows. Would I need to leave an a...
