How is it installed?
For some conservatory roof insulation installations it is necessary to first coat the glass with solar reflective film to prevent a build up of heat between the existing glass roof and the insulated ceiling. Generally this is not required for polycarbonate roofs.
Before fitting, the glass area must be carefully cleaned by the fitting team and then the film is generally applied to the inside while wet.
There are also certain situations where it is preferable to fit to the glass externally. This requires a different type of film and different application methods.