Insulation

How do you insulate sloping ceilings?

Anonymous user 1 March 2024 - 2.44 PM

Our house has sloping ceilings to all the upstairs rooms. The horizontal ceiling accounts for around 40% of the total ceiling area and is insulated with glass fibre between the joists, accessed via the loft hatch. However, this leaves a lot of uninsulated sloping ceilings with little room (around 5 inches) between the plasterboard and the roof tiles. The only access to these voids is by peering down at 45 degrees, once you are in the main loft space. I must be losing a lot of heat via the sloping ceilings. How can I insulate these sloping spaces between the rafters whilst allowing for sufficient ventilation? I should mention that I'm not keen on insulating from inside the bedrooms. The ideal scenario is to find a way that allows me to insulate from above but still keeping ventilation to the roof space and avoiding condensation... ...and I don't want to do the work myself! Thanks Nick