Ceiling Insulation - Since 25-35% of your home’s heat escapes through an uninsulated ceiling, ceiling insulation is essential to keep your home comfortable and your energy bills low. If your home has no easily accessible attic space (i.e. cathedral ceilings), you can still insulate it with polystyrene boards.
Wall Insulation - 15-25% of your costly conditioned air seeps out of your home via uninsulated (or poorly insulated) walls. Fortunately, all wall types with cavities can be insulated, even double brick walls. Some homeowners only insulate the hot western walls, which alone cools homes much more efficiently in summer. However, if you want to save on energy bills in winter as well, insulate all of your exterior walls. It’s a good idea to insulate internal walls too but this is a lower priority.
Floor Insulation - Some homes don’t have enough space under their floors for insulation. However, if your home does have underfloor insulation space, insulation will reduce noise, reduce draughts and prevent an additional 10-20% heat loss.