Hello All. New to this forum but have a burning question on insulation. So the house has plasterboarded vaulted ceilings all round. I cannot confirm that there is any insulation at all in the shallow areas between the the ceiling slope and the roof exterior. I have notice though that the bedrooms are freezing. The question is, is spraying foam insulator in these areas the way forward and will i then need to add more ventilation to the loft? Your thoughts please.