To insulate the roof itself you either use spray foam or retrofit with it with rigid foam board.
Insulate to roof.
The materials used to insulate under the roof include batts of mineral or glass wool insulation held in place by battens of wood attached to and across the rafters.
It s also within the capability of most diyers although not the most pleasant of tasks.
Roof insulation refers to the practice of installing insulation on the roof slope both above and below the rafters.
Ceiling insulation refers to any type of insulation installed within the floor nearest to the roof structure of the home.
An advantage of spray foam is it s quick whereas foam board needs to be cut and measured which can be a chore.
It s worth insulating the sloping insides of a pitched roof in order to conserve heat if the space is to be used for anything except simple storage.
Insulating a roof is perhaps the easiest of all the energy saving home improvements.