Likewise, should you insulate the underside of your roof?
If it does not need to be heated, it is best to keep it outside of the protected volume. You can do this by insulating the attic floor. But the best solution is actually to insulate both the attic floor and the underside of the roof.
Beside above, is it better to insulate ceiling or roof? Ceiling insulation can also be significantly cheaper than roof insulation, and can be more easily achieved without professional help. It can be difficult to access the roof space where insulation is needed, so loose-fill insulation installed by a professional is commonly used in this case.
Besides, can you insulate roof rafters?
Insulating between rafters will do no good, because the attic should be ventilated, and the rafter insulation would be between two unheated spaces. You can add insulation to the floor; the more the merrier. Also, make sure the attic is well ventilated. Cold roofs prevent ice dams.
Should I remove old insulation from my attic?
According to ENERGY STAR®, you can put new insulation over old insulation, “unless it is wet. “Faced” insulation should not be placed on top of existing insulation in the attic. Any new roll or batt insulation installed over existing insulation in the attic needs to be without a vapor retarder (face).
