We have a hardwood framed conservatory with large but double glazed windows and the walls have good insulation. However, the roof has the usual 3-ply polycarbonate roof. Part of the roof (the bigger part) slopes down away from the house wall and part is what I think they refer to as 'Victorian' with a ridge coming out from the house wall falling on one side to a valley where it meets the other part of the roof and to the outside (side) wall on the other side. So while part of the roof is quite simple construction with long roof beams, the 'Victorian' part is made up of smaller panels and is quite complicated.
We want to insulate the roof but we want to be able to remove the insulation during the summer months. We like the look of the hardwood roof beams and do not want to ruin them in fitting insulation if we can avoid it. We recognise that this will be an investment and that we may not save the cost (in heating) in the first year but we are retired so initial cost is a factor. Does anyone have any suggestions?